--- title: "Free & Budget Developer Tools for Startups (2026) — Pricing Compared | App Stack Builder" description: "Browse 100+ developer and SaaS tools with free tiers and budget pricing for startups in 2026. Compare databases, hosting, auth, payments, analytics and more by price." source: https://appstackbuilder.com/tools retrieved: 2026-09-12 --- Budget Tools # Budget-Friendly Developer Tools Discover the best SaaS tools and developer resources organized by price. From free tiers to premium solutions — find tools that fit your startup budget. ## Filter by Budget ## Free Developer Tools for Startups 295 tools with free plans across 54 categories — perfect for bootstrapped founders and indie hackers building their first product. ### Free Agent Framework Tools(19 free tools) ![Agno logo](https://www.google.com/s2/favicons?domain=agno.com&sz=128) #### [Agno](https://appstackbuilder.com/tools/agno) Free tier available High-performance Python framework and platform for building agents — fast, model-agnostic, with a hosted control plane. [Pricing & alternatives →](https://appstackbuilder.com/tools/agno)[Visit site ↗](https://www.google.com/search?q=Agno%20signup) ![AutoGen logo](https://www.google.com/s2/favicons?domain=microsoft.github.io&sz=128) #### [AutoGen](https://appstackbuilder.com/tools/autogen) Free tier available Microsoft's open-source framework for multi-agent conversations and orchestration. Free to use. [Pricing & alternatives →](https://appstackbuilder.com/tools/autogen)[Visit site ↗](https://www.google.com/search?q=AutoGen%20signup) ![CrewAI logo](https://www.google.com/s2/favicons?domain=crewai.com&sz=128) #### [CrewAI](https://appstackbuilder.com/tools/crewai) Free tier available Open-source framework for orchestrating role-playing, collaborating multi-agent 'crews' to automate workflows. [Pricing & alternatives →](https://appstackbuilder.com/tools/crewai)[Visit site ↗](https://www.google.com/search?q=CrewAI%20signup) ![Dify logo](https://appstackbuilder.com/logos/dify.svg) #### [Dify](https://appstackbuilder.com/tools/dify) Free tier available LLM app platform: visual workflows, RAG pipelines and agents with a hosted option. [Pricing & alternatives →](https://appstackbuilder.com/tools/dify)[Visit site ↗](https://www.google.com/search?q=Dify%20signup) ![DSPy logo](https://appstackbuilder.com/logos/dspy.png) #### [DSPy](https://appstackbuilder.com/tools/dspy) Free tier available Programs prompts instead of writing them — you define signatures and it optimises. [Pricing & alternatives →](https://appstackbuilder.com/tools/dspy)[Visit site ↗](https://www.google.com/search?q=DSPy%20signup) ![Flowise logo](https://appstackbuilder.com/logos/flowise.ico) #### [Flowise](https://appstackbuilder.com/tools/flowise) Free tier available Open-source visual agent builder with a hosted tier for teams who would rather not run it. [Pricing & alternatives →](https://appstackbuilder.com/tools/flowise)[Visit site ↗](https://www.google.com/search?q=Flowise%20signup) ![Google ADK logo](https://www.google.com/s2/favicons?domain=google.github.io&sz=128) #### [Google ADK](https://appstackbuilder.com/tools/google-adk) Free tier available Google's open-source Agent Development Kit — multi-agent systems optimized for Gemini and Vertex AI, model-agnostic via LiteLLM. [Pricing & alternatives →](https://appstackbuilder.com/tools/google-adk)[Visit site ↗](https://www.google.com/search?q=Google%20ADK%20signup) ![Haystack logo](https://appstackbuilder.com/logos/haystack.ico) #### [Haystack](https://appstackbuilder.com/tools/haystack) Free tier available deepset's pipeline framework for RAG and agents, strongest on retrieval. [Pricing & alternatives →](https://appstackbuilder.com/tools/haystack)[Visit site ↗](https://www.google.com/search?q=Haystack%20signup) ![LangChain logo](https://www.google.com/s2/favicons?domain=langchain.com&sz=128) #### [LangChain](https://appstackbuilder.com/tools/langchain) Free tier available The most popular open-source framework for building LLM apps and agents, with LangSmith for observability. [Pricing & alternatives →](https://appstackbuilder.com/tools/langchain)[Visit site ↗](https://www.google.com/search?q=LangChain%20signup) ![Langflow logo](https://appstackbuilder.com/logos/langflow.ico) #### [Langflow](https://appstackbuilder.com/tools/langflow) Free tier available Visual builder for LangChain-style flows, open source and self-hostable. [Pricing & alternatives →](https://appstackbuilder.com/tools/langflow)[Visit site ↗](https://www.google.com/search?q=Langflow%20signup) ![LangGraph logo](https://www.google.com/s2/favicons?domain=langchain.com&sz=128) #### [LangGraph](https://appstackbuilder.com/tools/langgraph) Free tier available Open-source library for building stateful, multi-step agent workflows as graphs — with a managed platform option. [Pricing & alternatives →](https://appstackbuilder.com/tools/langgraph)[Visit site ↗](https://www.google.com/search?q=LangGraph%20signup) ![Letta logo](https://appstackbuilder.com/logos/letta.png) #### [Letta](https://appstackbuilder.com/tools/letta) Free tier available Agents with persistent memory — the MemGPT research, productised. [Pricing & alternatives →](https://appstackbuilder.com/tools/letta)[Visit site ↗](https://www.google.com/search?q=Letta%20signup) ![LlamaIndex logo](https://www.google.com/s2/favicons?domain=llamaindex.ai&sz=128) #### [LlamaIndex](https://appstackbuilder.com/tools/llamaindex) Free tier available Open-source data framework for RAG and agents — connect LLMs to your data, with LlamaCloud for managed pipelines. [Pricing & alternatives →](https://appstackbuilder.com/tools/llamaindex)[Visit site ↗](https://www.google.com/search?q=LlamaIndex%20signup) ![Mastra logo](https://www.google.com/s2/favicons?domain=mastra.ai&sz=128) #### [Mastra](https://appstackbuilder.com/tools/mastra) Free tier available Open-source TypeScript agent framework from the Gatsby team — agents, workflows, memory, and observability in one modern stack. [Pricing & alternatives →](https://appstackbuilder.com/tools/mastra)[Visit site ↗](https://www.google.com/search?q=Mastra%20signup) ![OpenAI Agents SDK logo](https://www.google.com/s2/favicons?domain=openai.github.io&sz=128) #### [OpenAI Agents SDK](https://appstackbuilder.com/tools/openai-agents-sdk) Free tier available OpenAI's lightweight, production-ready agent SDK — minimal-boilerplate agents, tools, handoffs, and guardrails. [Pricing & alternatives →](https://appstackbuilder.com/tools/openai-agents-sdk)[Visit site ↗](https://www.google.com/search?q=OpenAI%20Agents%20SDK%20signup) ![Pydantic AI logo](https://www.google.com/s2/favicons?domain=ai.pydantic.dev&sz=128) #### [Pydantic AI](https://appstackbuilder.com/tools/pydantic-ai) Free tier available Type-safe Python agent framework from the Pydantic team — structured, validated agent outputs with minimal boilerplate. [Pricing & alternatives →](https://appstackbuilder.com/tools/pydantic-ai)[Visit site ↗](https://www.google.com/search?q=Pydantic%20AI%20signup) ![Semantic Kernel logo](https://appstackbuilder.com/logos/semantic-kernel.svg) #### [Semantic Kernel](https://appstackbuilder.com/tools/semantic-kernel) Free tier available Microsoft's agent SDK for .NET, Python and Java, built for enterprise codebases. [Pricing & alternatives →](https://appstackbuilder.com/tools/semantic-kernel)[Visit site ↗](https://www.google.com/search?q=Semantic%20Kernel%20signup) ![smolagents logo](https://appstackbuilder.com/logos/smolagents.svg) #### [smolagents](https://appstackbuilder.com/tools/smolagents) Free tier available Hugging Face's minimal agent library — agents that write and run Python. [Pricing & alternatives →](https://appstackbuilder.com/tools/smolagents)[Visit site ↗](https://www.google.com/search?q=smolagents%20signup) ![Vercel AI SDK logo](https://www.google.com/s2/favicons?domain=sdk.vercel.ai&sz=128) #### [Vercel AI SDK](https://appstackbuilder.com/tools/vercel-ai-sdk) Free tier available Open-source TypeScript toolkit for building AI apps and agents with streaming, tool calling, and any model. [Pricing & alternatives →](https://appstackbuilder.com/tools/vercel-ai-sdk)[Visit site ↗](https://www.google.com/search?q=Vercel%20AI%20SDK%20signup) ### Free AI Assistants & Subscriptions Tools(2 free tools) ![DeepSeek Chat logo](https://appstackbuilder.com/logos/deepseek-chat.ico) #### [DeepSeek Chat](https://appstackbuilder.com/tools/deepseek-chat) Free tier available Free chat over DeepSeek’s open-weight reasoning models. [Pricing & alternatives →](https://appstackbuilder.com/tools/deepseek-chat)[Visit site ↗](https://www.google.com/search?q=DeepSeek%20Chat%20signup) ![Qwen Chat logo](https://appstackbuilder.com/logos/qwen-chat.png) #### [Qwen Chat](https://appstackbuilder.com/tools/qwen-chat) Free tier available Alibaba’s free assistant over the Qwen model family, strong on multilingual work. [Pricing & alternatives →](https://appstackbuilder.com/tools/qwen-chat)[Visit site ↗](https://www.google.com/search?q=Qwen%20Chat%20signup) ### Free AI Audio & Music Tools(3 free tools) ![Cartesia logo](https://appstackbuilder.com/logos/cartesia.svg) #### [Cartesia](https://appstackbuilder.com/tools/cartesia) Free tier available Low-latency speech models built for live voice agents. [Pricing & alternatives →](https://appstackbuilder.com/tools/cartesia)[Visit site ↗](https://www.google.com/search?q=Cartesia%20signup) ![Murf AI logo](https://appstackbuilder.com/logos/murf-ai.ico) #### [Murf AI](https://appstackbuilder.com/tools/murf-ai) Free tier available Studio-style AI voiceover: 200+ voices, timing and emphasis controls, and a workspace built for producing narration. [Pricing & alternatives →](https://appstackbuilder.com/tools/murf-ai)[Visit site ↗](https://www.google.com/search?q=Murf%20AI%20signup) ![Speechify logo](https://appstackbuilder.com/logos/speechify.png) #### [Speechify](https://appstackbuilder.com/tools/speechify) Free tier available Reads documents, PDFs and web pages aloud in natural voices. [Pricing & alternatives →](https://appstackbuilder.com/tools/speechify)[Visit site ↗](https://www.google.com/search?q=Speechify%20signup) ### Free AI Video Generation Tools(3 free tools) C #### [Captions](https://appstackbuilder.com/tools/captions-ai) Free tier available AI video studio for talking-head content: captions, eye contact correction, dubbing, and fully AI-generated presenters. [Pricing & alternatives →](https://appstackbuilder.com/tools/captions-ai)[Visit site ↗](https://www.google.com/search?q=Captions%20signup) O #### [OpusClip](https://appstackbuilder.com/tools/opusclip) Free tier available Turns long videos into short vertical clips automatically, picking the moments most likely to perform and adding captions. [Pricing & alternatives →](https://appstackbuilder.com/tools/opusclip)[Visit site ↗](https://www.google.com/search?q=OpusClip%20signup) ![Synthesia logo](https://appstackbuilder.com/logos/synthesia.png) #### [Synthesia](https://appstackbuilder.com/tools/synthesia) Free tier available AI presenter videos from a script — 240+ avatars, 140 languages, and the tool most L&D teams use instead of filming. [Pricing & alternatives →](https://appstackbuilder.com/tools/synthesia)[Visit site ↗](https://www.google.com/search?q=Synthesia%20signup) ### Free AI Writing & Content Tools(2 free tools) R #### [Rytr](https://appstackbuilder.com/tools/rytr) Free tier available Budget AI writing assistant with 40+ use-case templates and a genuinely cheap unlimited tier. [Pricing & alternatives →](https://appstackbuilder.com/tools/rytr)[Visit site ↗](https://www.google.com/search?q=Rytr%20signup) W #### [Wordtune](https://appstackbuilder.com/tools/wordtune) Free tier available AI rewriting and editing assistant that rephrases your own sentences rather than generating new copy. [Pricing & alternatives →](https://appstackbuilder.com/tools/wordtune)[Visit site ↗](https://www.google.com/search?q=Wordtune%20signup) ### Free Analytics Tools(7 free tools) ![Amplitude logo](https://appstackbuilder.com/amplitude.svg) #### [Amplitude](https://appstackbuilder.com/tools/amplitude) Free tier available Enterprise product analytics platform with strong mobile insights. [Pricing & alternatives →](https://appstackbuilder.com/tools/amplitude)[Visit site ↗](https://amplitude.com) ![Firebase Analytics logo](https://appstackbuilder.com/firebase.svg) #### [Firebase Analytics](https://appstackbuilder.com/tools/firebase-analytics) Free tier available Free mobile-first analytics built into Firebase for app engagement and user behavior tracking. [Pricing & alternatives →](https://appstackbuilder.com/tools/firebase-analytics)[Visit site ↗](https://www.google.com/search?q=Firebase%20Analytics%20signup) ![Google Analytics logo](https://appstackbuilder.com/google-analytics.svg) #### [Google Analytics](https://appstackbuilder.com/tools/google-analytics) Free tier available Free web analytics platform for tracking user behavior and traffic sources. [Pricing & alternatives →](https://appstackbuilder.com/tools/google-analytics)[Visit site ↗](https://analytics.google.com/) ![Matomo logo](https://appstackbuilder.com/logos/matomo.webp) #### [Matomo](https://appstackbuilder.com/tools/matomo) Free tier available Google Analytics alternative with full data ownership. [Pricing & alternatives →](https://appstackbuilder.com/tools/matomo)[Visit site ↗](https://www.google.com/search?q=Matomo%20signup) ![Mixpanel logo](https://appstackbuilder.com/mixpanel.svg) #### [Mixpanel](https://appstackbuilder.com/tools/mixpanel) Free tier available Advanced event-based analytics that tracks user behavior across mobile and web. [Pricing & alternatives →](https://appstackbuilder.com/tools/mixpanel)[Visit site ↗](https://mixpanel.com) ![PostHog logo](https://appstackbuilder.com/posthog.svg) #### [PostHog](https://appstackbuilder.com/tools/posthog) Free tier available Product analytics platform with event tracking, feature flags, and session replay. [Pricing & alternatives →](https://appstackbuilder.com/tools/posthog)[Visit site ↗](https://posthog.com) ![Umami logo](https://appstackbuilder.com/logos/umami.svg) #### [Umami](https://appstackbuilder.com/tools/umami) Free tier available Open-source analytics you can self-host or buy hosted. [Pricing & alternatives →](https://appstackbuilder.com/tools/umami)[Visit site ↗](https://www.google.com/search?q=Umami%20signup) ### Free API Development Tools(10 free tools) ![Apidog logo](https://www.google.com/s2/favicons?domain=apidog.com&sz=128) #### [Apidog](https://appstackbuilder.com/tools/apidog) Free tier available All-in-one API platform combining design, mocking, testing, and docs — a Postman + Swagger alternative. [Pricing & alternatives →](https://appstackbuilder.com/tools/apidog)[Visit site ↗](https://www.google.com/search?q=Apidog%20signup) ![Bruno logo](https://www.google.com/s2/favicons?domain=usebruno.com&sz=128) #### [Bruno](https://appstackbuilder.com/tools/bruno) Free tier available Open-source, git-native API client — collections stored as files in your repo, offline-first. A fast-growing Postman alternative. [Pricing & alternatives →](https://appstackbuilder.com/tools/bruno)[Visit site ↗](https://www.google.com/search?q=Bruno%20signup) ![Hoppscotch logo](https://www.google.com/s2/favicons?domain=hoppscotch.io&sz=128) #### [Hoppscotch](https://appstackbuilder.com/tools/hoppscotch) Free tier available Lightweight, open-source browser-based API client for REST, GraphQL, and WebSocket — fast and free. [Pricing & alternatives →](https://appstackbuilder.com/tools/hoppscotch)[Visit site ↗](https://www.google.com/search?q=Hoppscotch%20signup) ![HTTPie logo](https://www.google.com/s2/favicons?domain=httpie.io&sz=128) #### [HTTPie](https://appstackbuilder.com/tools/httpie) Free tier available Human-friendly API client — a famous open-source CLI plus a cross-platform desktop app for REST, GraphQL, and HTTP. [Pricing & alternatives →](https://appstackbuilder.com/tools/httpie)[Visit site ↗](https://www.google.com/search?q=HTTPie%20signup) ![Insomnia logo](https://www.google.com/s2/favicons?domain=insomnia.rest&sz=128) #### [Insomnia](https://appstackbuilder.com/tools/insomnia) Free tier available Kong-owned, multi-protocol API client with local, git, or cloud storage per project. [Pricing & alternatives →](https://appstackbuilder.com/tools/insomnia)[Visit site ↗](https://www.google.com/search?q=Insomnia%20signup) ![Postman logo](https://appstackbuilder.com/postman.svg) #### [Postman](https://appstackbuilder.com/tools/postman) Free tier available API platform for building, testing, and documenting APIs. [Pricing & alternatives →](https://appstackbuilder.com/tools/postman)[Visit site ↗](https://www.google.com/search?q=Postman%20signup) ![Scalar logo](https://www.google.com/s2/favicons?domain=scalar.com&sz=128) #### [Scalar](https://appstackbuilder.com/tools/scalar) Free tier available Open-source, OpenAPI-first API platform — a modern REST client plus beautiful auto-generated API references. [Pricing & alternatives →](https://appstackbuilder.com/tools/scalar)[Visit site ↗](https://www.google.com/search?q=Scalar%20signup) ![Stoplight logo](https://www.google.com/s2/favicons?domain=stoplight.io&sz=128) #### [Stoplight](https://appstackbuilder.com/tools/stoplight) Free tier available Design-first OpenAPI platform — visual API designer, style governance, mock servers, and interactive docs. [Pricing & alternatives →](https://appstackbuilder.com/tools/stoplight)[Visit site ↗](https://www.google.com/search?q=Stoplight%20signup) ![Swagger / OpenAPI logo](https://www.google.com/s2/favicons?domain=swagger.io&sz=128) #### [Swagger / OpenAPI](https://appstackbuilder.com/tools/swagger) Free tier available The OpenAPI toolset — design, document, and test APIs. Open-source tools free; SwaggerHub for teams. [Pricing & alternatives →](https://appstackbuilder.com/tools/swagger)[Visit site ↗](https://www.google.com/search?q=Swagger%20%2F%20OpenAPI%20signup) ![Thunder Client logo](https://www.google.com/s2/favicons?domain=thunderclient.com&sz=128) #### [Thunder Client](https://appstackbuilder.com/tools/thunder-client) Free tier available Lightweight REST API client built into VS Code and JetBrains — test APIs without leaving your editor. [Pricing & alternatives →](https://appstackbuilder.com/tools/thunder-client)[Visit site ↗](https://www.google.com/search?q=Thunder%20Client%20signup) ### Free Auth Tools(6 free tools) ![Auth0 logo](https://appstackbuilder.com/auth0.svg) #### [Auth0](https://appstackbuilder.com/tools/auth0) Free tier available Enterprise-grade authentication and authorization platform with advanced security, SSO, and identity management. [Pricing & alternatives →](https://appstackbuilder.com/tools/auth0)[Visit site ↗](https://auth0.com/signup) ![Better Auth logo](https://www.google.com/s2/favicons?domain=better-auth.com&sz=128) #### [Better Auth](https://appstackbuilder.com/tools/better-auth) Free tier available Open-source, TypeScript-first authentication framework — comprehensive, self-hosted, and free. [Pricing & alternatives →](https://appstackbuilder.com/tools/better-auth)[Visit site ↗](https://www.google.com/search?q=Better%20Auth%20signup) ![Clerk logo](https://appstackbuilder.com/clerk.svg) #### [Clerk](https://appstackbuilder.com/tools/clerk) Free tier available Complete authentication and user management platform for modern web applications. [Pricing & alternatives →](https://appstackbuilder.com/tools/clerk)[Visit site ↗](https://clerk.com/sign-up) ![Firebase Authentication logo](https://appstackbuilder.com/firebase.svg) #### [Firebase Authentication](https://appstackbuilder.com/tools/firebase-auth) Free tier available Authentication service by Google Firebase supporting email/password, phone, social logins, and anonymous auth. [Pricing & alternatives →](https://appstackbuilder.com/tools/firebase-auth)[Visit site ↗](https://www.google.com/search?q=Firebase%20Authentication%20signup) ![NextAuth.js logo](https://appstackbuilder.com/nextauth.png) #### [NextAuth.js](https://appstackbuilder.com/tools/nextauth) Free tier available Open-source authentication solution for Next.js with built-in providers, sessions, and security best practices. [Pricing & alternatives →](https://appstackbuilder.com/tools/nextauth)[Visit site ↗](https://next-auth.js.org) ![SuperTokens logo](https://appstackbuilder.com/supertokens.png) #### [SuperTokens](https://appstackbuilder.com/tools/supertokens) Free tier available Open-source authentication solution with flexible cloud and self-hosted options, priced per MAU. [Pricing & alternatives →](https://appstackbuilder.com/tools/supertokens)[Visit site ↗](https://www.google.com/search?q=SuperTokens%20signup) ### Free Automation & Workflows Tools(7 free tools) ![Activepieces logo](https://www.google.com/s2/favicons?domain=activepieces.com&sz=128) #### [Activepieces](https://appstackbuilder.com/tools/activepieces) Free tier available Open-source, self-hostable workflow automation with an MIT-licensed core and native AI steps. [Pricing & alternatives →](https://appstackbuilder.com/tools/activepieces)[Visit site ↗](https://www.google.com/search?q=Activepieces%20signup) B #### [Bardeen](https://appstackbuilder.com/tools/bardeen) Free tier available Browser-native automation that scrapes pages and moves data between the web apps already open in your tabs. [Pricing & alternatives →](https://appstackbuilder.com/tools/bardeen)[Visit site ↗](https://www.google.com/search?q=Bardeen%20signup) L #### [Latenode](https://appstackbuilder.com/tools/latenode) Free tier available Low-code automation that lets you drop into JavaScript mid-workflow, billed by CPU seconds rather than per task. [Pricing & alternatives →](https://appstackbuilder.com/tools/latenode)[Visit site ↗](https://www.google.com/search?q=Latenode%20signup) ![Make logo](https://www.google.com/s2/favicons?domain=make.com&sz=128) #### [Make](https://appstackbuilder.com/tools/make) Free tier available Visual automation platform (formerly Integromat) with powerful branching and a generous operations-based free tier. [Pricing & alternatives →](https://appstackbuilder.com/tools/make)[Visit site ↗](https://www.google.com/search?q=Make%20signup) ![n8n logo](https://www.google.com/s2/favicons?domain=n8n.io&sz=128) #### [n8n](https://appstackbuilder.com/tools/n8n) Free tier available Open-source, self-hostable workflow automation with native AI/agent nodes — fair-code and developer-friendly. [Pricing & alternatives →](https://appstackbuilder.com/tools/n8n)[Visit site ↗](https://www.google.com/search?q=n8n%20signup) ![Pipedream logo](https://www.google.com/s2/favicons?domain=pipedream.com&sz=128) #### [Pipedream](https://appstackbuilder.com/tools/pipedream) Free tier available Developer-first workflow automation — connect 2,500+ APIs with code-level control and a generous free tier. [Pricing & alternatives →](https://appstackbuilder.com/tools/pipedream)[Visit site ↗](https://www.google.com/search?q=Pipedream%20signup) ![Zapier logo](https://www.google.com/s2/favicons?domain=zapier.com&sz=128) #### [Zapier](https://appstackbuilder.com/tools/zapier) Free tier available The most popular no-code automation tool — connect 7,000+ apps with 'Zaps' to automate workflows. [Pricing & alternatives →](https://appstackbuilder.com/tools/zapier)[Visit site ↗](https://www.google.com/search?q=Zapier%20signup) ### Free Backend Framework Tools(8 free tools) ![Django logo](https://www.google.com/s2/favicons?domain=djangoproject.com&sz=128) #### [Django](https://appstackbuilder.com/tools/django) Free tier available Batteries-included Python web framework — ORM, admin, and auth out of the box. Great for data-heavy and AI backends. [Pricing & alternatives →](https://appstackbuilder.com/tools/django)[Visit site ↗](https://www.google.com/search?q=Django%20signup) ![Express logo](https://www.google.com/s2/favicons?domain=expressjs.com&sz=128) #### [Express](https://appstackbuilder.com/tools/express) Free tier available The minimal, unopinionated Node.js web framework — still the most widely used backend in JS. [Pricing & alternatives →](https://appstackbuilder.com/tools/express)[Visit site ↗](https://www.google.com/search?q=Express%20signup) ![Go (Golang) logo](https://appstackbuilder.com/golang.svg) #### [Go (Golang)](https://appstackbuilder.com/tools/golang) Free tier available Google's statically typed, compiled language for high-performance, low-latency backend services and infrastructure. [Pricing & alternatives →](https://appstackbuilder.com/tools/golang)[Visit site ↗](https://www.google.com/search?q=Go%20%28Golang%29%20signup) ![Hono logo](https://www.google.com/s2/favicons?domain=hono.dev&sz=128) #### [Hono](https://appstackbuilder.com/tools/hono) Free tier available Ultrafast, edge-first web framework for any JS runtime (Cloudflare, Bun, Deno, Node) — tiny and standards-based. [Pricing & alternatives →](https://appstackbuilder.com/tools/hono)[Visit site ↗](https://www.google.com/search?q=Hono%20signup) ![Java / Spring Boot logo](https://appstackbuilder.com/spring.svg) #### [Java / Spring Boot](https://appstackbuilder.com/tools/java-spring) Free tier available Industry-standard Java framework for building enterprise-grade, high-throughput transactional backend services. [Pricing & alternatives →](https://appstackbuilder.com/tools/java-spring)[Visit site ↗](https://www.google.com/search?q=Java%20%2F%20Spring%20Boot%20signup) ![Laravel logo](https://www.google.com/s2/favicons?domain=laravel.com&sz=128) #### [Laravel](https://appstackbuilder.com/tools/laravel) Free tier available The most popular PHP framework — elegant syntax, huge ecosystem, and everything needed for complex business apps. [Pricing & alternatives →](https://appstackbuilder.com/tools/laravel)[Visit site ↗](https://www.google.com/search?q=Laravel%20signup) ![NestJS logo](https://www.google.com/s2/favicons?domain=nestjs.com&sz=128) #### [NestJS](https://appstackbuilder.com/tools/nestjs) Free tier available Progressive Node.js framework for building scalable, structured server-side apps with TypeScript. [Pricing & alternatives →](https://appstackbuilder.com/tools/nestjs)[Visit site ↗](https://www.google.com/search?q=NestJS%20signup) ![Python / FastAPI logo](https://appstackbuilder.com/fastapi.svg) #### [Python / FastAPI](https://appstackbuilder.com/tools/fastapi) Free tier available Modern, high-performance Python web framework for building APIs — especially popular for AI/ML-powered backends. [Pricing & alternatives →](https://appstackbuilder.com/tools/fastapi)[Visit site ↗](https://www.google.com/search?q=Python%20%2F%20FastAPI%20signup) ### Free Background Jobs & Workflows Tools(10 free tools) ![BullMQ logo](https://www.google.com/s2/favicons?domain=bullmq.io&sz=128) #### [BullMQ](https://appstackbuilder.com/tools/bullmq) Free tier available Fast, Redis-based message queue and job processor for Node.js — the modern successor to Bull. [Pricing & alternatives →](https://appstackbuilder.com/tools/bullmq)[Visit site ↗](https://www.google.com/search?q=BullMQ%20signup) ![Celery logo](https://www.google.com/s2/favicons?domain=celeryq.dev&sz=128) #### [Celery](https://appstackbuilder.com/tools/celery) Free tier available The classic distributed task queue for Python — async jobs and scheduled tasks at scale. [Pricing & alternatives →](https://appstackbuilder.com/tools/celery)[Visit site ↗](https://www.google.com/search?q=Celery%20signup) ![Graphile Worker logo](https://www.google.com/s2/favicons?domain=graphile.org&sz=128) #### [Graphile Worker](https://appstackbuilder.com/tools/graphile-worker) Free tier available High-performance job queue for Node.js that runs entirely on your Postgres — no extra infrastructure. [Pricing & alternatives →](https://appstackbuilder.com/tools/graphile-worker)[Visit site ↗](https://www.google.com/search?q=Graphile%20Worker%20signup) ![Hatchet logo](https://www.google.com/s2/favicons?domain=hatchet.run&sz=128) #### [Hatchet](https://appstackbuilder.com/tools/hatchet) Free tier available Postgres-backed orchestration engine for background tasks, AI agents, and durable workflows. [Pricing & alternatives →](https://appstackbuilder.com/tools/hatchet)[Visit site ↗](https://www.google.com/search?q=Hatchet%20signup) ![Inngest logo](https://www.google.com/s2/favicons?domain=inngest.com&sz=128) #### [Inngest](https://appstackbuilder.com/tools/inngest) Free tier available Durable, event-driven functions and workflows for TypeScript & Python — no queues or workers to manage. [Pricing & alternatives →](https://appstackbuilder.com/tools/inngest)[Visit site ↗](https://www.google.com/search?q=Inngest%20signup) ![River logo](https://www.google.com/s2/favicons?domain=riverqueue.com&sz=128) #### [River](https://appstackbuilder.com/tools/river) Free tier available Fast, robust background job queue for Go, built on Postgres with transactional enqueueing. [Pricing & alternatives →](https://appstackbuilder.com/tools/river)[Visit site ↗](https://www.google.com/search?q=River%20signup) ![Sidekiq logo](https://www.google.com/s2/favicons?domain=sidekiq.org&sz=128) #### [Sidekiq](https://appstackbuilder.com/tools/sidekiq) Free tier available Simple, efficient background jobs for Ruby — the standard for Rails apps, backed by Redis. [Pricing & alternatives →](https://appstackbuilder.com/tools/sidekiq)[Visit site ↗](https://www.google.com/search?q=Sidekiq%20signup) ![Temporal logo](https://www.google.com/s2/favicons?domain=temporal.io&sz=128) #### [Temporal](https://appstackbuilder.com/tools/temporal) Free tier available Durable execution platform for mission-critical workflows — code that survives crashes, retries, and restarts. [Pricing & alternatives →](https://appstackbuilder.com/tools/temporal)[Visit site ↗](https://www.google.com/search?q=Temporal%20signup) ![Trigger.dev logo](https://www.google.com/s2/favicons?domain=trigger.dev&sz=128) #### [Trigger.dev](https://appstackbuilder.com/tools/trigger-dev) Free tier available Open-source background jobs and AI workflows for TypeScript — long-running tasks with no timeouts. [Pricing & alternatives →](https://appstackbuilder.com/tools/trigger-dev)[Visit site ↗](https://www.google.com/search?q=Trigger.dev%20signup) ![Upstash QStash logo](https://www.google.com/s2/favicons?domain=upstash.com&sz=128) #### [Upstash QStash](https://appstackbuilder.com/tools/qstash) Free tier available Serverless message queue and HTTP-based scheduler — background jobs and cron without running any infrastructure. [Pricing & alternatives →](https://appstackbuilder.com/tools/qstash)[Visit site ↗](https://www.google.com/search?q=Upstash%20QStash%20signup) ### Free CI/CD Tools(6 free tools) ![Argo CD logo](https://appstackbuilder.com/logos/argo-cd.png) #### [Argo CD](https://appstackbuilder.com/tools/argo-cd) Free tier available GitOps continuous delivery for Kubernetes: the cluster reconciles itself to whatever the manifests in Git say. [Pricing & alternatives →](https://appstackbuilder.com/tools/argo-cd)[Visit site ↗](https://www.google.com/search?q=Argo%20CD%20signup) ![Buildkite logo](https://www.google.com/s2/favicons?domain=buildkite.com&sz=128) #### [Buildkite](https://appstackbuilder.com/tools/buildkite) Free tier available Scalable CI/CD that runs pipelines on your own infrastructure — fast, secure, with a free tier. [Pricing & alternatives →](https://appstackbuilder.com/tools/buildkite)[Visit site ↗](https://www.google.com/search?q=Buildkite%20signup) ![CircleCI logo](https://appstackbuilder.com/circleci.svg) #### [CircleCI](https://appstackbuilder.com/tools/circleci) Free tier available Cloud-native CI/CD platform for fast, reliable software delivery. [Pricing & alternatives →](https://appstackbuilder.com/tools/circleci)[Visit site ↗](https://www.google.com/search?q=CircleCI%20signup) ![GitHub Actions logo](https://appstackbuilder.com/github.svg) #### [GitHub Actions](https://appstackbuilder.com/tools/github-actions) Free tier available CI/CD and automation platform built into GitHub repositories. [Pricing & alternatives →](https://appstackbuilder.com/tools/github-actions)[Visit site ↗](https://www.google.com/search?q=GitHub%20Actions%20signup) ![GitLab CI/CD logo](https://www.google.com/s2/favicons?domain=gitlab.com&sz=128) #### [GitLab CI/CD](https://appstackbuilder.com/tools/gitlab-ci) Free tier available Built-in CI/CD inside GitLab — pipelines as code with a generous free tier of compute minutes. [Pricing & alternatives →](https://appstackbuilder.com/tools/gitlab-ci)[Visit site ↗](https://www.google.com/search?q=GitLab%20CI%2FCD%20signup) ![Jenkins logo](https://www.google.com/s2/favicons?domain=jenkins.io&sz=128) #### [Jenkins](https://appstackbuilder.com/tools/jenkins) Free tier available The veteran open-source automation server — endlessly extensible CI/CD with 1,800+ plugins. Free to self-host. [Pricing & alternatives →](https://appstackbuilder.com/tools/jenkins)[Visit site ↗](https://www.google.com/search?q=Jenkins%20signup) ### Free Content Management Tools(6 free tools) ![Contentful logo](https://www.google.com/s2/favicons?domain=contentful.com&sz=128) #### [Contentful](https://appstackbuilder.com/tools/contentful) Free tier available Enterprise headless CMS for managing content across multiple channels. [Pricing & alternatives →](https://appstackbuilder.com/tools/contentful)[Visit site ↗](https://www.google.com/search?q=Contentful%20signup) ![Directus logo](https://www.google.com/s2/favicons?domain=directus.io&sz=128) #### [Directus](https://appstackbuilder.com/tools/directus) Free tier available Open-source data platform that wraps any SQL database with instant REST/GraphQL APIs and an admin app. [Pricing & alternatives →](https://appstackbuilder.com/tools/directus)[Visit site ↗](https://www.google.com/search?q=Directus%20signup) ![Payload CMS logo](https://www.google.com/s2/favicons?domain=payloadcms.com&sz=128) #### [Payload CMS](https://appstackbuilder.com/tools/payload) Free tier available TypeScript-native, open-source headless CMS that installs directly into your Next.js app — the CMS that made the biggest splash in 2026. [Pricing & alternatives →](https://appstackbuilder.com/tools/payload)[Visit site ↗](https://www.google.com/search?q=Payload%20CMS%20signup) ![Sanity logo](https://www.google.com/s2/favicons?domain=sanity.io&sz=128) #### [Sanity](https://appstackbuilder.com/tools/sanity) Free tier available Headless CMS with real-time collaboration and customizable content studio. [Pricing & alternatives →](https://appstackbuilder.com/tools/sanity)[Visit site ↗](https://www.google.com/search?q=Sanity%20signup) ![Storyblok logo](https://www.google.com/s2/favicons?domain=storyblok.com&sz=128) #### [Storyblok](https://appstackbuilder.com/tools/storyblok) Free tier available Headless CMS with the best visual editor on the market — non-technical teams edit pages in a live preview. [Pricing & alternatives →](https://appstackbuilder.com/tools/storyblok)[Visit site ↗](https://www.google.com/search?q=Storyblok%20signup) ![Strapi logo](https://www.google.com/s2/favicons?domain=strapi.io&sz=128) #### [Strapi](https://appstackbuilder.com/tools/strapi) Free tier available Open-source headless CMS that's 100% JavaScript and fully customizable. [Pricing & alternatives →](https://appstackbuilder.com/tools/strapi)[Visit site ↗](https://www.google.com/search?q=Strapi%20signup) ### Free AI Coding Assistant Tools(7 free tools) ![Amazon Q Developer logo](https://appstackbuilder.com/logos/amazon-q-developer.ico) #### [Amazon Q Developer](https://appstackbuilder.com/tools/amazon-q-developer) Free tier available AWS coding assistant with agentic chat, CLI and Java modernisation. [Pricing & alternatives →](https://appstackbuilder.com/tools/amazon-q-developer)[Visit site ↗](https://www.google.com/search?q=Amazon%20Q%20Developer%20signup) ![Cursor logo](https://appstackbuilder.com/cursor.svg) #### [Cursor](https://appstackbuilder.com/tools/cursor) Free tier available AI-powered code editor with built-in agents, deep model support, and fast local development workflows. [Pricing & alternatives →](https://appstackbuilder.com/tools/cursor)[Visit site ↗](https://cursor.sh/) ![Gemini Code Assist logo](https://appstackbuilder.com/gemini.svg) #### [Gemini Code Assist](https://appstackbuilder.com/tools/gemini-code-assist) Free tier available AI-powered coding assistant by Google that provides code completion, explanations, refactoring, and chat inside IDEs. [Pricing & alternatives →](https://appstackbuilder.com/tools/gemini-code-assist)[Visit site ↗](https://www.google.com/search?q=Gemini%20Code%20Assist%20signup) ![GitHub Copilot logo](https://appstackbuilder.com/github-copilot.svg) #### [GitHub Copilot](https://appstackbuilder.com/tools/github-copilot) Free tier available AI-powered coding assistant that helps you write, review, and understand code faster directly in your IDE. [Pricing & alternatives →](https://appstackbuilder.com/tools/github-copilot)[Visit site ↗](https://github.com/features/copilot) ![Google Antigravity logo](https://appstackbuilder.com/google-antigravity.svg) #### [Google Antigravity](https://appstackbuilder.com/tools/google-antigravity) Free tier available AI-powered agent-first IDE from Google with autonomous AI agents, generous free tier, and multi-model support. [Pricing & alternatives →](https://appstackbuilder.com/tools/google-antigravity)[Visit site ↗](https://www.google.com/search?q=Google%20Antigravity%20signup) ![OpenAI Codex logo](https://appstackbuilder.com/openai.svg) #### [OpenAI Codex](https://appstackbuilder.com/tools/openai-codex) Free tier available OpenAI’s agentic coding tool — a terminal CLI, IDE extension, and cloud agent powered by GPT-5-Codex models. [Pricing & alternatives →](https://appstackbuilder.com/tools/openai-codex)[Visit site ↗](https://www.google.com/search?q=OpenAI%20Codex%20signup) ![Windsurf logo](https://appstackbuilder.com/windsurf.svg) #### [Windsurf](https://appstackbuilder.com/tools/windsurf) Free tier available AI-powered coding assistant with fast context, multi-model support, and strong collaboration features for individuals and teams. [Pricing & alternatives →](https://appstackbuilder.com/tools/windsurf)[Visit site ↗](https://codeium.com/windsurf) ### Free Communication Tools(8 free tools) ![Discord logo](https://appstackbuilder.com/discord.svg) #### [Discord](https://appstackbuilder.com/tools/discord) Free tier available Voice, video, and text communication platform popular with developer communities. [Pricing & alternatives →](https://appstackbuilder.com/tools/discord)[Visit site ↗](https://www.google.com/search?q=Discord%20signup) ![Google Meet logo](https://www.google.com/s2/favicons?domain=meet.google.com&sz=128) #### [Google Meet](https://appstackbuilder.com/tools/google-meet) Free tier available Browser-based video meetings integrated with Google Workspace — no install, free to start. [Pricing & alternatives →](https://appstackbuilder.com/tools/google-meet)[Visit site ↗](https://www.google.com/search?q=Google%20Meet%20signup) ![Mattermost logo](https://www.google.com/s2/favicons?domain=mattermost.com&sz=128) #### [Mattermost](https://appstackbuilder.com/tools/mattermost) Free tier available Open-source, self-hostable team messaging — a Slack alternative for security- and privacy-conscious teams. [Pricing & alternatives →](https://appstackbuilder.com/tools/mattermost)[Visit site ↗](https://www.google.com/search?q=Mattermost%20signup) ![Microsoft Teams logo](https://www.google.com/s2/favicons?domain=microsoft.com&sz=128) #### [Microsoft Teams](https://appstackbuilder.com/tools/microsoft-teams) Free tier available Team chat, video meetings, and collaboration deeply integrated with Microsoft 365\. Free tier available. [Pricing & alternatives →](https://appstackbuilder.com/tools/microsoft-teams)[Visit site ↗](https://www.google.com/search?q=Microsoft%20Teams%20signup) ![Rocket.Chat logo](https://www.google.com/s2/favicons?domain=rocket.chat&sz=128) #### [Rocket.Chat](https://appstackbuilder.com/tools/rocket-chat) Free tier available Open-source, self-hostable team communication platform for security- and data-sovereignty-focused teams. [Pricing & alternatives →](https://appstackbuilder.com/tools/rocket-chat)[Visit site ↗](https://www.google.com/search?q=Rocket.Chat%20signup) ![Slack logo](https://appstackbuilder.com/slack.svg) #### [Slack](https://appstackbuilder.com/tools/slack) Free tier available Business messaging platform for team communication and collaboration. [Pricing & alternatives →](https://appstackbuilder.com/tools/slack)[Visit site ↗](https://www.google.com/search?q=Slack%20signup) ![Zoom logo](https://www.google.com/s2/favicons?domain=zoom.us&sz=128) #### [Zoom](https://appstackbuilder.com/tools/zoom) Free tier available The ubiquitous video meetings platform — reliable HD video, webinars, and a free tier (40-min meetings). [Pricing & alternatives →](https://appstackbuilder.com/tools/zoom)[Visit site ↗](https://www.google.com/search?q=Zoom%20signup) ![Zulip logo](https://www.google.com/s2/favicons?domain=zulip.com&sz=128) #### [Zulip](https://appstackbuilder.com/tools/zulip) Free tier available Open-source team chat with a unique topic-threading model — great for async, focused discussions. [Pricing & alternatives →](https://appstackbuilder.com/tools/zulip)[Visit site ↗](https://www.google.com/search?q=Zulip%20signup) ### Free Data & ETL Tools(7 free tools) ![Airbyte logo](https://appstackbuilder.com/logos/airbyte.png) #### [Airbyte](https://appstackbuilder.com/tools/airbyte) Free tier available Open-source ELT with 600+ connectors — self-host it for free, or buy the managed cloud when you would rather not. [Pricing & alternatives →](https://appstackbuilder.com/tools/airbyte)[Visit site ↗](https://www.google.com/search?q=Airbyte%20signup) ![dbt logo](https://appstackbuilder.com/logos/dbt.ico) #### [dbt](https://appstackbuilder.com/tools/dbt) Free tier available SQL transformations with version control, tests and lineage — the layer that turns raw warehouse tables into models you trust. [Pricing & alternatives →](https://appstackbuilder.com/tools/dbt)[Visit site ↗](https://www.google.com/search?q=dbt%20signup) ![Estuary Flow logo](https://appstackbuilder.com/logos/estuary.ico) #### [Estuary Flow](https://appstackbuilder.com/tools/estuary) Free tier available Streaming CDC pipelines with sub-second latency, priced per GB moved plus a flat fee per connector. [Pricing & alternatives →](https://appstackbuilder.com/tools/estuary)[Visit site ↗](https://www.google.com/search?q=Estuary%20Flow%20signup) ![Fivetran logo](https://appstackbuilder.com/logos/fivetran.png) #### [Fivetran](https://appstackbuilder.com/tools/fivetran) Free tier available Managed ELT connectors that keep a warehouse in sync with every SaaS tool and database you run, priced per row changed. [Pricing & alternatives →](https://appstackbuilder.com/tools/fivetran)[Visit site ↗](https://www.google.com/search?q=Fivetran%20signup) ![Hightouch logo](https://appstackbuilder.com/logos/hightouch.ico) #### [Hightouch](https://appstackbuilder.com/tools/hightouch) Free tier available Reverse ETL: sync the models in your warehouse back out to Salesforce, HubSpot, ad platforms and support tools. [Pricing & alternatives →](https://appstackbuilder.com/tools/hightouch)[Visit site ↗](https://www.google.com/search?q=Hightouch%20signup) ![Meltano logo](https://appstackbuilder.com/logos/meltano.png) #### [Meltano](https://appstackbuilder.com/tools/meltano) Free tier available Open-source, CLI-first ELT built on the Singer taps and targets — your pipeline as code, running wherever you already deploy. [Pricing & alternatives →](https://appstackbuilder.com/tools/meltano)[Visit site ↗](https://www.google.com/search?q=Meltano%20signup) ![RudderStack logo](https://appstackbuilder.com/logos/rudderstack.ico) #### [RudderStack](https://appstackbuilder.com/tools/rudderstack) Free tier available Warehouse-first customer data pipeline — collect events once, land them in your own warehouse, then fan out to 200+ destinations. [Pricing & alternatives →](https://appstackbuilder.com/tools/rudderstack)[Visit site ↗](https://www.google.com/search?q=RudderStack%20signup) ### Free Database Tools(6 free tools) ![Appwrite logo](https://appstackbuilder.com/appwrite.svg) #### [Appwrite](https://appstackbuilder.com/tools/appwrite) Free tier available Open-source backend-as-a-service providing databases, authentication, storage, serverless functions, and real-time APIs. [Pricing & alternatives →](https://appstackbuilder.com/tools/appwrite)[Visit site ↗](https://appwrite.io) ![MongoDB Atlas logo](https://appstackbuilder.com/mongodb.svg) #### [MongoDB Atlas](https://appstackbuilder.com/tools/mongodb-atlas) Free tier available Fully managed cloud NoSQL database with flexible scaling, global distribution, and strong developer tooling. [Pricing & alternatives →](https://appstackbuilder.com/tools/mongodb-atlas)[Visit site ↗](https://www.google.com/search?q=MongoDB%20Atlas%20signup) ![Neon logo](https://appstackbuilder.com/neon.svg) #### [Neon](https://appstackbuilder.com/tools/neon) Free tier available Serverless PostgreSQL with autoscaling, branching, and usage-based pricing. [Pricing & alternatives →](https://appstackbuilder.com/tools/neon)[Visit site ↗](https://neon.tech) ![Redis logo](https://appstackbuilder.com/redis.svg) #### [Redis](https://appstackbuilder.com/tools/redis) Free tier available In-memory data structure store used as a cache, session store, real-time queue, and message broker. [Pricing & alternatives →](https://appstackbuilder.com/tools/redis)[Visit site ↗](https://www.google.com/search?q=Redis%20signup) ![Supabase logo](https://appstackbuilder.com/supabase.svg) #### [Supabase](https://appstackbuilder.com/tools/supabase) Free tier available Open-source Firebase alternative built on PostgreSQL with auth, storage, and real-time features. [Pricing & alternatives →](https://appstackbuilder.com/tools/supabase)[Visit site ↗](https://supabase.com/dashboard/sign-up) ![Turso logo](https://www.google.com/s2/favicons?domain=turso.tech&sz=128) #### [Turso](https://appstackbuilder.com/tools/turso) Free tier available Edge SQLite (libSQL) database built for the database-per-tenant pattern, with a generous free tier. [Pricing & alternatives →](https://appstackbuilder.com/tools/turso)[Visit site ↗](https://www.google.com/search?q=Turso%20signup) ### Free Design & Creative Tools(2 free tools) ![Affinity logo](https://appstackbuilder.com/logos/affinity.png) #### [Affinity](https://appstackbuilder.com/tools/affinity) Free tier available Professional vector, photo and layout tools in one app — free since Canva took it on. [Pricing & alternatives →](https://appstackbuilder.com/tools/affinity)[Visit site ↗](https://www.google.com/search?q=Affinity%20signup) ![Photopea logo](https://appstackbuilder.com/logos/photopea.png) #### [Photopea](https://appstackbuilder.com/tools/photopea) Free tier available Photoshop in a browser tab, ad-supported and free. [Pricing & alternatives →](https://appstackbuilder.com/tools/photopea)[Visit site ↗](https://www.google.com/search?q=Photopea%20signup) ### Free Docs & Developer Portals Tools(5 free tools) ![Docusaurus logo](https://appstackbuilder.com/logos/docusaurus.ico) #### [Docusaurus](https://appstackbuilder.com/tools/docusaurus) Free tier available Meta's open-source React docs generator — free forever, versioned, i18n-ready, and hosted anywhere static files go. [Pricing & alternatives →](https://appstackbuilder.com/tools/docusaurus)[Visit site ↗](https://www.google.com/search?q=Docusaurus%20signup) ![GitBook logo](https://appstackbuilder.com/logos/gitbook.png) #### [GitBook](https://appstackbuilder.com/tools/gitbook) Free tier available Block-based docs with GitHub sync — a WYSIWYG editor non-engineers can use that still round-trips to Markdown in your repo. [Pricing & alternatives →](https://appstackbuilder.com/tools/gitbook)[Visit site ↗](https://www.google.com/search?q=GitBook%20signup) ![Mintlify logo](https://appstackbuilder.com/logos/mintlify.ico) #### [Mintlify](https://appstackbuilder.com/tools/mintlify) Free tier available Modern docs platform for API-first products: MDX in your repo, an API playground, AI search and an MCP server generated for you. [Pricing & alternatives →](https://appstackbuilder.com/tools/mintlify)[Visit site ↗](https://www.google.com/search?q=Mintlify%20signup) R #### [Read the Docs](https://appstackbuilder.com/tools/readthedocs) Free tier available The long-standing host for Sphinx and MkDocs documentation — builds from your repo on every commit, with versioning and full-text search built in. [Pricing & alternatives →](https://appstackbuilder.com/tools/readthedocs)[Visit site ↗](https://www.google.com/search?q=Read%20the%20Docs%20signup) ![ReadMe logo](https://appstackbuilder.com/logos/readme.ico) #### [ReadMe](https://appstackbuilder.com/tools/readme) Free tier available API documentation hubs with personalised keys, real request logs and metrics on which endpoints developers actually call. [Pricing & alternatives →](https://appstackbuilder.com/tools/readme)[Visit site ↗](https://www.google.com/search?q=ReadMe%20signup) ### Free PDF & Documents Tools(5 free tools) ![iLovePDFs logo](https://appstackbuilder.com/ilovepdf.svg) #### [iLovePDFs](https://appstackbuilder.com/tools/ilovepdf) Free tier available Free online PDF toolkit — convert, edit, compress, merge, split, and secure PDF files instantly, no software needed. [Pricing & alternatives →](https://appstackbuilder.com/tools/ilovepdf)[Visit site ↗](https://www.google.com/search?q=iLovePDFs%20signup) ![PandaDoc logo](https://appstackbuilder.com/pandadoc.svg) #### [PandaDoc](https://appstackbuilder.com/tools/pandadoc) Free tier available All-in-one document automation — build proposals, quotes, and contracts with templates, pricing tables, e-signatures, and payments. [Pricing & alternatives →](https://appstackbuilder.com/tools/pandadoc)[Visit site ↗](https://www.google.com/search?q=PandaDoc%20signup) ![PDF24 Tools logo](https://www.google.com/s2/favicons?domain=pdf24.org&sz=128) #### [PDF24 Tools](https://appstackbuilder.com/tools/pdf24) Free tier available Completely free PDF toolkit with 30+ tools online and an offline desktop app — no sign-up required. [Pricing & alternatives →](https://appstackbuilder.com/tools/pdf24)[Visit site ↗](https://www.google.com/search?q=PDF24%20Tools%20signup) ![Smallpdf logo](https://www.google.com/s2/favicons?domain=smallpdf.com&sz=128) #### [Smallpdf](https://appstackbuilder.com/tools/smallpdf) Free tier available Popular online PDF suite — convert, compress, merge, edit, sign, and e-sign documents in the browser. [Pricing & alternatives →](https://appstackbuilder.com/tools/smallpdf)[Visit site ↗](https://www.google.com/search?q=Smallpdf%20signup) ![Stirling PDF logo](https://www.google.com/s2/favicons?domain=stirlingpdf.com&sz=128) #### [Stirling PDF](https://appstackbuilder.com/tools/stirling-pdf) Free tier available Open-source, self-hostable PDF toolkit — run 50+ PDF operations locally so files never leave your server. [Pricing & alternatives →](https://appstackbuilder.com/tools/stirling-pdf)[Visit site ↗](https://www.google.com/search?q=Stirling%20PDF%20signup) ### Free E-commerce Platforms Tools(3 free tools) ![Medusa logo](https://appstackbuilder.com/logos/medusa.png) #### [Medusa](https://appstackbuilder.com/tools/medusa) Free tier available Open-source headless commerce engine for Node. [Pricing & alternatives →](https://appstackbuilder.com/tools/medusa)[Visit site ↗](https://www.google.com/search?q=Medusa%20signup) ![Saleor logo](https://appstackbuilder.com/logos/saleor.png) #### [Saleor](https://appstackbuilder.com/tools/saleor) Free tier available Open-source, GraphQL-first headless commerce platform. [Pricing & alternatives →](https://appstackbuilder.com/tools/saleor)[Visit site ↗](https://www.google.com/search?q=Saleor%20signup) ![WooCommerce logo](https://appstackbuilder.com/logos/woocommerce.png) #### [WooCommerce](https://appstackbuilder.com/tools/woocommerce) Free tier available The open-source store plugin for WordPress. [Pricing & alternatives →](https://appstackbuilder.com/tools/woocommerce)[Visit site ↗](https://www.google.com/search?q=WooCommerce%20signup) ### Free Email/Messaging Tools(4 free tools) ![Amazon SES logo](https://www.google.com/s2/favicons?domain=aws.amazon.com&sz=128) #### [Amazon SES](https://appstackbuilder.com/tools/amazon-ses) Free tier available The cheapest transactional email at scale — pay-as-you-go AWS email (\~$0.10 per 1,000 emails). [Pricing & alternatives →](https://appstackbuilder.com/tools/amazon-ses)[Visit site ↗](https://aws.amazon.com/) ![Mailgun logo](https://www.google.com/s2/favicons?domain=mailgun.com&sz=128) #### [Mailgun](https://appstackbuilder.com/tools/mailgun) Free tier available Developer-focused transactional email API with strong deliverability and detailed analytics. [Pricing & alternatives →](https://appstackbuilder.com/tools/mailgun)[Visit site ↗](https://www.google.com/search?q=Mailgun%20signup) ![Resend logo](https://appstackbuilder.com/resend.svg) #### [Resend](https://appstackbuilder.com/tools/resend) Free tier available Developer-first transactional email API built for modern applications. [Pricing & alternatives →](https://appstackbuilder.com/tools/resend)[Visit site ↗](https://resend.com) ![SendGrid logo](https://appstackbuilder.com/sendgrid.svg) #### [SendGrid](https://appstackbuilder.com/tools/sendgrid) Free tier available Scalable email delivery platform for transactional and marketing emails. [Pricing & alternatives →](https://appstackbuilder.com/tools/sendgrid)[Visit site ↗](https://signup.sendgrid.com/) ### Free Feature Flags & Experiments Tools(6 free tools) ![ConfigCat logo](https://appstackbuilder.com/logos/configcat.png) #### [ConfigCat](https://appstackbuilder.com/tools/configcat) Free tier available Straightforward hosted feature flags with a free tier that never expires and flat, published pricing. [Pricing & alternatives →](https://appstackbuilder.com/tools/configcat)[Visit site ↗](https://www.google.com/search?q=ConfigCat%20signup) ![Flagsmith logo](https://appstackbuilder.com/logos/flagsmith.png) #### [Flagsmith](https://appstackbuilder.com/tools/flagsmith) Free tier available Open-source feature flags you can self-host, with hosted plans priced on API requests rather than seats. [Pricing & alternatives →](https://appstackbuilder.com/tools/flagsmith)[Visit site ↗](https://www.google.com/search?q=Flagsmith%20signup) ![GrowthBook logo](https://appstackbuilder.com/logos/growthbook.png) #### [GrowthBook](https://appstackbuilder.com/tools/growthbook) Free tier available Warehouse-native flags and experiments — the stats run on your own data, and the whole platform is open source. [Pricing & alternatives →](https://appstackbuilder.com/tools/growthbook)[Visit site ↗](https://www.google.com/search?q=GrowthBook%20signup) ![LaunchDarkly logo](https://appstackbuilder.com/logos/launchdarkly.ico) #### [LaunchDarkly](https://appstackbuilder.com/tools/launchdarkly) Free tier available The enterprise standard for feature flags: targeting rules, percentage rollouts and instant kill switches across 30 SDKs. [Pricing & alternatives →](https://appstackbuilder.com/tools/launchdarkly)[Visit site ↗](https://www.google.com/search?q=LaunchDarkly%20signup) ![Statsig logo](https://appstackbuilder.com/logos/statsig.png) #### [Statsig](https://appstackbuilder.com/tools/statsig) Free tier available Flags, experiments and product analytics in one tool, with the statistics engine that made it worth switching. [Pricing & alternatives →](https://appstackbuilder.com/tools/statsig)[Visit site ↗](https://www.google.com/search?q=Statsig%20signup) ![Unleash logo](https://appstackbuilder.com/logos/unleash.png) #### [Unleash](https://appstackbuilder.com/tools/unleash) Free tier available Open-source feature flags with a privacy-first architecture — flag evaluation happens in your SDK, never on the vendor's servers. [Pricing & alternatives →](https://appstackbuilder.com/tools/unleash)[Visit site ↗](https://www.google.com/search?q=Unleash%20signup) ### Free Accounting & Finance Tools(3 free tools) M #### [Melio](https://appstackbuilder.com/tools/melio) Free tier available Accounts payable for small businesses: pay vendors by bank transfer free, or by card for a fee, with QuickBooks and Xero sync. [Pricing & alternatives →](https://appstackbuilder.com/tools/melio)[Visit site ↗](https://www.google.com/search?q=Melio%20signup) ![Wave logo](https://appstackbuilder.com/logos/wave.png) #### [Wave](https://appstackbuilder.com/tools/wave) Free tier available Free invoicing and bookkeeping for freelancers and very small businesses — Wave makes its money on payments, not software. [Pricing & alternatives →](https://appstackbuilder.com/tools/wave)[Visit site ↗](https://www.google.com/search?q=Wave%20signup) ![Zoho Books logo](https://appstackbuilder.com/logos/zoho-books.ico) #### [Zoho Books](https://appstackbuilder.com/tools/zoho-books) Free tier available Full double-entry accounting at a fraction of QuickBooks — free under a revenue threshold, $20/month after. [Pricing & alternatives →](https://appstackbuilder.com/tools/zoho-books)[Visit site ↗](https://www.google.com/search?q=Zoho%20Books%20signup) ### Free Frontend Framework Tools(8 free tools) ![Angular logo](https://appstackbuilder.com/angular.svg) #### [Angular](https://appstackbuilder.com/tools/angular) Free tier available A full-featured, opinionated framework for building scalable web applications. [Pricing & alternatives →](https://appstackbuilder.com/tools/angular)[Visit site ↗](https://www.google.com/search?q=Angular%20signup) ![Astro logo](https://www.google.com/s2/favicons?domain=astro.build&sz=128) #### [Astro](https://appstackbuilder.com/tools/astro) Free tier available Content-focused web framework with zero-JS by default and 'islands architecture' — ideal for fast marketing and content sites. [Pricing & alternatives →](https://appstackbuilder.com/tools/astro)[Visit site ↗](https://docs.astro.build/en/getting-started/) ![Nuxt logo](https://www.google.com/s2/favicons?domain=nuxt.com&sz=128) #### [Nuxt](https://appstackbuilder.com/tools/nuxt) Free tier available The intuitive Vue meta-framework — SSR, file routing, and auto-imports for production Vue apps. [Pricing & alternatives →](https://appstackbuilder.com/tools/nuxt)[Visit site ↗](https://www.google.com/search?q=Nuxt%20signup) ![React logo](https://appstackbuilder.com/react.svg) #### [React](https://appstackbuilder.com/tools/react) Free tier available A declarative, component-based JavaScript library for building user interfaces. [Pricing & alternatives →](https://appstackbuilder.com/tools/react)[Visit site ↗](https://www.google.com/search?q=React%20signup) ![Remix logo](https://www.google.com/s2/favicons?domain=remix.run&sz=128) #### [Remix](https://appstackbuilder.com/tools/remix) Free tier available Full-stack React framework focused on web standards, nested routing, and progressive enhancement. [Pricing & alternatives →](https://appstackbuilder.com/tools/remix)[Visit site ↗](https://remix.run/docs/en/main/start/quickstart) ![SolidJS logo](https://www.google.com/s2/favicons?domain=solidjs.com&sz=128) #### [SolidJS](https://appstackbuilder.com/tools/solidjs) Free tier available Reactive UI library with fine-grained reactivity and no virtual DOM — blazing fast with a React-like API. [Pricing & alternatives →](https://appstackbuilder.com/tools/solidjs)[Visit site ↗](https://www.google.com/search?q=SolidJS%20signup) ![SvelteKit logo](https://www.google.com/s2/favicons?domain=svelte.dev&sz=128) #### [SvelteKit](https://appstackbuilder.com/tools/sveltekit) Free tier available Official Svelte meta-framework with file-based routing, SSR, and tiny bundles — leading developer satisfaction in 2026. [Pricing & alternatives →](https://appstackbuilder.com/tools/sveltekit)[Visit site ↗](https://www.google.com/search?q=SvelteKit%20signup) ![Vue logo](https://appstackbuilder.com/vue.svg) #### [Vue](https://appstackbuilder.com/tools/vue) Free tier available A progressive JavaScript framework for building modern user interfaces. [Pricing & alternatives →](https://appstackbuilder.com/tools/vue)[Visit site ↗](https://www.google.com/search?q=Vue%20signup) ### Free All-in-One Development Tools(10 free tools) ![Base44 logo](https://appstackbuilder.com/base44.svg) #### [Base44](https://appstackbuilder.com/tools/base44) Free tier available AI-powered app builder for creating full-stack applications with messaging, integrations, and backend logic. [Pricing & alternatives →](https://appstackbuilder.com/tools/base44)[Visit site ↗](https://base44.com/) ![Bolt.new logo](https://appstackbuilder.com/boltnew.svg) #### [Bolt.new](https://appstackbuilder.com/tools/boltnew) Free tier available AI-powered full-stack app builder that generates, hosts, and deploys applications from natural language prompts. [Pricing & alternatives →](https://appstackbuilder.com/tools/boltnew)[Visit site ↗](https://bolt.new/) ![Bubble logo](https://appstackbuilder.com/bubble.svg) #### [Bubble](https://appstackbuilder.com/tools/bubble) Free tier available No-code platform to build, launch, and scale production-ready web and mobile applications with AI. [Pricing & alternatives →](https://appstackbuilder.com/tools/bubble)[Visit site ↗](https://bubble.io/start-building) ![Dyad logo](https://appstackbuilder.com/dyad.svg) #### [Dyad](https://appstackbuilder.com/tools/dyad) Free tier available Flexible, local, open-source AI app builder with zero lock-in. [Pricing & alternatives →](https://appstackbuilder.com/tools/dyad)[Visit site ↗](https://www.google.com/search?q=Dyad%20signup) ![Lovable logo](https://appstackbuilder.com/lovable.svg) #### [Lovable](https://appstackbuilder.com/tools/lovable) Free tier available Collaborative AI-powered app builder for teams to design, build, and publish projects together in real time. [Pricing & alternatives →](https://appstackbuilder.com/tools/lovable)[Visit site ↗](https://lovable.dev/) ![Mocha logo](https://appstackbuilder.com/mocha.svg) #### [Mocha](https://appstackbuilder.com/tools/mocha) Free tier available AI-powered website builder that lets you create beautiful websites using words instead of code. [Pricing & alternatives →](https://appstackbuilder.com/tools/mocha)[Visit site ↗](https://www.google.com/search?q=Mocha%20signup) ![Next.js logo](https://appstackbuilder.com/nextjs.svg) #### [Next.js](https://appstackbuilder.com/tools/nextjs) Free tier available A full-stack React framework for building production-grade web applications. [Pricing & alternatives →](https://appstackbuilder.com/tools/nextjs)[Visit site ↗](https://nextjs.org/) ![Replit logo](https://appstackbuilder.com/replit.svg) #### [Replit](https://appstackbuilder.com/tools/replit) Free tier available Cloud-based development platform to build, run, and deploy applications with AI-powered agents. [Pricing & alternatives →](https://appstackbuilder.com/tools/replit)[Visit site ↗](https://replit.com) ![Trickle logo](https://appstackbuilder.com/trickle.svg) #### [Trickle](https://appstackbuilder.com/tools/trickle) Free tier available AI-powered website and web app builder with built-in database, hosting, and credit-based AI usage. [Pricing & alternatives →](https://appstackbuilder.com/tools/trickle)[Visit site ↗](https://www.google.com/search?q=Trickle%20signup) ![v0 by Vercel logo](https://appstackbuilder.com/v0.svg) #### [v0 by Vercel](https://appstackbuilder.com/tools/v0) Free tier available AI-powered UI and app generation tool by Vercel for building, iterating, and deploying apps faster. [Pricing & alternatives →](https://appstackbuilder.com/tools/v0)[Visit site ↗](https://www.google.com/search?q=v0%20by%20Vercel%20signup) ### Free Hosting Tools(7 free tools) ![Cloudflare Pages & Workers logo](https://appstackbuilder.com/cloudflare.svg) #### [Cloudflare Pages & Workers](https://appstackbuilder.com/tools/cloudflare-pages-workers) Free tier available Edge-first hosting platform for static sites, serverless functions, and global compute. [Pricing & alternatives →](https://appstackbuilder.com/tools/cloudflare-pages-workers)[Visit site ↗](https://www.google.com/search?q=Cloudflare%20Pages%20%26%20Workers%20signup) ![Microsoft Azure logo](https://www.google.com/s2/favicons?domain=azure.microsoft.com&sz=128) #### [Microsoft Azure](https://appstackbuilder.com/tools/azure) Free tier available Microsoft’s enterprise cloud — App Service, VMs, containers, and a free tier, deeply tied to the Microsoft ecosystem. [Pricing & alternatives →](https://appstackbuilder.com/tools/azure)[Visit site ↗](https://www.google.com/search?q=Microsoft%20Azure%20signup) ![Netlify logo](https://appstackbuilder.com/netlify.svg) #### [Netlify](https://appstackbuilder.com/tools/netlify) Free tier available Frontend-focused hosting platform with global CDN, serverless functions, and Git-based CI/CD. [Pricing & alternatives →](https://appstackbuilder.com/tools/netlify)[Visit site ↗](https://app.netlify.com) ![Oracle Cloud (OCI) logo](https://www.google.com/s2/favicons?domain=oracle.com&sz=128) #### [Oracle Cloud (OCI)](https://appstackbuilder.com/tools/oracle-cloud) Free tier available Home of the most generous Always Free tier — ARM Ampere VMs you can run indefinitely at $0. [Pricing & alternatives →](https://appstackbuilder.com/tools/oracle-cloud)[Visit site ↗](https://www.google.com/search?q=Oracle%20Cloud%20%28OCI%29%20signup) ![Railway logo](https://appstackbuilder.com/railway.svg) #### [Railway](https://appstackbuilder.com/tools/railway) Free tier available Developer-focused cloud platform to deploy apps, databases, and services with usage-based pricing. [Pricing & alternatives →](https://appstackbuilder.com/tools/railway)[Visit site ↗](https://railway.app) ![Render logo](https://appstackbuilder.com/render.svg) #### [Render](https://appstackbuilder.com/tools/render) Free tier available Unified cloud platform to deploy and scale full-stack applications, APIs, background workers, and managed datastores. [Pricing & alternatives →](https://appstackbuilder.com/tools/render)[Visit site ↗](https://www.google.com/search?q=Render%20signup) ![Vercel logo](https://appstackbuilder.com/vercel.svg) #### [Vercel](https://appstackbuilder.com/tools/vercel) Free tier available Frontend-first cloud platform for deploying and scaling web applications with global edge infrastructure. [Pricing & alternatives →](https://appstackbuilder.com/tools/vercel)[Visit site ↗](https://vercel.com) ### Free Internal Tools & Admin Panels Tools(5 free tools) ![Appsmith logo](https://appstackbuilder.com/logos/appsmith.png) #### [Appsmith](https://appstackbuilder.com/tools/appsmith) Free tier available Open-source internal tool builder — the Retool model, self-hostable, at $15 per user on cloud. [Pricing & alternatives →](https://appstackbuilder.com/tools/appsmith)[Visit site ↗](https://www.google.com/search?q=Appsmith%20signup) ![Budibase logo](https://appstackbuilder.com/logos/budibase.png) #### [Budibase](https://appstackbuilder.com/tools/budibase) Free tier available Low-code internal apps with a built-in database, automations and flat monthly pricing rather than per-seat billing. [Pricing & alternatives →](https://appstackbuilder.com/tools/budibase)[Visit site ↗](https://www.google.com/search?q=Budibase%20signup) ![Retool logo](https://appstackbuilder.com/logos/retool.ico) #### [Retool](https://appstackbuilder.com/tools/retool) Free tier available Drag-and-drop admin panels and internal apps wired straight to your database and APIs, priced per builder. [Pricing & alternatives →](https://appstackbuilder.com/tools/retool)[Visit site ↗](https://www.google.com/search?q=Retool%20signup) ![ToolJet logo](https://appstackbuilder.com/logos/tooljet.ico) #### [ToolJet](https://appstackbuilder.com/tools/tooljet) Free tier available Open-source internal tool builder with unlimited builders on paid plans — the seat maths that suits engineering-heavy teams. [Pricing & alternatives →](https://appstackbuilder.com/tools/tooljet)[Visit site ↗](https://www.google.com/search?q=ToolJet%20signup) ![Windmill logo](https://appstackbuilder.com/logos/windmill.ico) #### [Windmill](https://appstackbuilder.com/tools/windmill) Free tier available Open-source developer platform that turns scripts in Python, TypeScript, Go or Bash into internal UIs, workflows and cron jobs. [Pricing & alternatives →](https://appstackbuilder.com/tools/windmill)[Visit site ↗](https://www.google.com/search?q=Windmill%20signup) ### Free Notes & Knowledge Base Tools(3 free tools) ![Anytype logo](https://www.google.com/s2/favicons?domain=anytype.io&sz=128) #### [Anytype](https://appstackbuilder.com/tools/anytype) Free tier available Open-source, end-to-end encrypted, local-first workspace — a private alternative to Notion and Obsidian. [Pricing & alternatives →](https://appstackbuilder.com/tools/anytype)[Visit site ↗](https://www.google.com/search?q=Anytype%20signup) ![Logseq logo](https://www.google.com/s2/favicons?domain=logseq.com&sz=128) #### [Logseq](https://appstackbuilder.com/tools/logseq) Free tier available Free, open-source, local-first outliner for networked notes and personal knowledge management. [Pricing & alternatives →](https://appstackbuilder.com/tools/logseq)[Visit site ↗](https://www.google.com/search?q=Logseq%20signup) ![Obsidian logo](https://www.google.com/s2/favicons?domain=obsidian.md&sz=128) #### [Obsidian](https://appstackbuilder.com/tools/obsidian) Free tier available Local-first, markdown knowledge base with backlinks and graph view — free for personal use. [Pricing & alternatives →](https://appstackbuilder.com/tools/obsidian)[Visit site ↗](https://www.google.com/search?q=Obsidian%20signup) ### Free Launchers & Productivity Tools(4 free tools) ![Albert logo](https://www.google.com/s2/favicons?domain=albertlauncher.github.io&sz=128) #### [Albert](https://appstackbuilder.com/tools/albert) Free tier available Free, open-source keyboard launcher for Linux — fuzzy search apps, files, calculations, and more. [Pricing & alternatives →](https://appstackbuilder.com/tools/albert)[Visit site ↗](https://www.google.com/search?q=Albert%20signup) ![Alfred logo](https://www.google.com/s2/favicons?domain=alfredapp.com&sz=128) #### [Alfred](https://appstackbuilder.com/tools/alfred) Free tier available The classic macOS launcher and productivity app — search, clipboard history, and powerful workflows. [Pricing & alternatives →](https://appstackbuilder.com/tools/alfred)[Visit site ↗](https://www.google.com/search?q=Alfred%20signup) ![Flow Launcher logo](https://www.google.com/s2/favicons?domain=flowlauncher.com&sz=128) #### [Flow Launcher](https://appstackbuilder.com/tools/flow-launcher) Free tier available Free, open-source quick launcher for Windows — search apps, files, and the web with a plugin ecosystem. [Pricing & alternatives →](https://appstackbuilder.com/tools/flow-launcher)[Visit site ↗](https://www.google.com/search?q=Flow%20Launcher%20signup) ![Raycast logo](https://www.google.com/s2/favicons?domain=raycast.com&sz=128) #### [Raycast](https://appstackbuilder.com/tools/raycast) Free tier available Blazing-fast launcher and productivity hub for macOS (and Windows) with extensions, snippets, and AI. [Pricing & alternatives →](https://appstackbuilder.com/tools/raycast)[Visit site ↗](https://www.google.com/search?q=Raycast%20signup) ### Free LLM Provider Tools(11 free tools) ![Cerebras logo](https://www.google.com/s2/favicons?domain=cerebras.ai&sz=128) #### [Cerebras](https://appstackbuilder.com/tools/cerebras) Free tier available The fastest LLM inference available — open models on wafer-scale hardware, with a generous free tier (1M tokens/day). [Pricing & alternatives →](https://appstackbuilder.com/tools/cerebras)[Visit site ↗](https://www.google.com/search?q=Cerebras%20signup) ![Cohere logo](https://www.google.com/s2/favicons?domain=cohere.com&sz=128) #### [Cohere](https://appstackbuilder.com/tools/cohere) Free tier available Enterprise LLM platform built for RAG and search — Command models plus best-in-class Embed and Rerank. [Pricing & alternatives →](https://appstackbuilder.com/tools/cohere)[Visit site ↗](https://www.google.com/search?q=Cohere%20signup) ![DeepSeek logo](https://www.google.com/s2/favicons?domain=deepseek.com&sz=128) #### [DeepSeek](https://appstackbuilder.com/tools/deepseek) Free tier available High-quality, very low-cost LLM API (DeepSeek V4) with strong reasoning and coding at a fraction of frontier prices. [Pricing & alternatives →](https://appstackbuilder.com/tools/deepseek)[Visit site ↗](https://www.google.com/search?q=DeepSeek%20signup) ![Fireworks AI logo](https://www.google.com/s2/favicons?domain=fireworks.ai&sz=128) #### [Fireworks AI](https://appstackbuilder.com/tools/fireworks-ai) Free tier available Ultra-low-latency serverless inference and fine-tuning for open models — sub-100ms for common models. [Pricing & alternatives →](https://appstackbuilder.com/tools/fireworks-ai)[Visit site ↗](https://www.google.com/search?q=Fireworks%20AI%20signup) ![Google Gemini API logo](https://appstackbuilder.com/gemini.svg) #### [Google Gemini API](https://appstackbuilder.com/tools/google-gemini-api) Free tier available Google's Gemini API — multimodal AI models with the largest context window and competitive pricing for high-volume applications. [Pricing & alternatives →](https://appstackbuilder.com/tools/google-gemini-api)[Visit site ↗](https://www.google.com/search?q=Google%20Gemini%20API%20signup) ![Grok API (xAI) logo](https://appstackbuilder.com/grok.svg) #### [Grok API (xAI)](https://appstackbuilder.com/tools/grok-api) Free tier available xAI's Grok API — real-time internet access, large context window, and competitive pricing for AI-powered apps. [Pricing & alternatives →](https://appstackbuilder.com/tools/grok-api)[Visit site ↗](https://www.google.com/search?q=Grok%20API%20%28xAI%29%20signup) ![Groq logo](https://www.google.com/s2/favicons?domain=groq.com&sz=128) #### [Groq](https://appstackbuilder.com/tools/groq) Free tier available Ultra-fast LLM inference API powered by custom LPUs — sub-second responses with a generous free tier. [Pricing & alternatives →](https://appstackbuilder.com/tools/groq)[Visit site ↗](https://www.google.com/search?q=Groq%20signup) ![Mistral AI API logo](https://appstackbuilder.com/mistral.svg) #### [Mistral AI API](https://appstackbuilder.com/tools/mistral-api) Free tier available European open-weight LLM API with strong coding models, function calling, and a free tier via La Plateforme. [Pricing & alternatives →](https://appstackbuilder.com/tools/mistral-api)[Visit site ↗](https://www.google.com/search?q=Mistral%20AI%20API%20signup) ![NVIDIA NIM logo](https://www.google.com/s2/favicons?domain=build.nvidia.com&sz=128) #### [NVIDIA NIM](https://appstackbuilder.com/tools/nvidia-nim) Free tier available NVIDIA's inference layer — a free-to-prototype catalog of 40+ optimized open-weight LLMs with an OpenAI-compatible API. [Pricing & alternatives →](https://appstackbuilder.com/tools/nvidia-nim)[Visit site ↗](https://www.google.com/search?q=NVIDIA%20NIM%20signup) ![OpenRouter logo](https://www.google.com/s2/favicons?domain=openrouter.ai&sz=128) #### [OpenRouter](https://appstackbuilder.com/tools/openrouter) Free tier available One API for hundreds of LLMs (Claude, GPT, Llama, DeepSeek…) with automatic routing, fallbacks, and free models. [Pricing & alternatives →](https://appstackbuilder.com/tools/openrouter)[Visit site ↗](https://www.google.com/search?q=OpenRouter%20signup) ![Together AI logo](https://www.google.com/s2/favicons?domain=together.ai&sz=128) #### [Together AI](https://appstackbuilder.com/tools/together-ai) Free tier available Serverless inference and fine-tuning for 200+ open-source models — the price leader at scale, with $25 free credits. [Pricing & alternatives →](https://appstackbuilder.com/tools/together-ai)[Visit site ↗](https://www.google.com/search?q=Together%20AI%20signup) ### Free Localization & Translation Tools(4 free tools) L #### [Locize](https://appstackbuilder.com/tools/locize) Free tier available Translation management from the i18next team, with a CDN that serves translations to your app at runtime. [Pricing & alternatives →](https://appstackbuilder.com/tools/locize)[Visit site ↗](https://www.google.com/search?q=Locize%20signup) P #### [POEditor](https://appstackbuilder.com/tools/poeditor) Free tier available Straightforward translation management priced by string count, with unlimited projects and contributors on every tier. [Pricing & alternatives →](https://appstackbuilder.com/tools/poeditor)[Visit site ↗](https://www.google.com/search?q=POEditor%20signup) ![Tolgee logo](https://appstackbuilder.com/logos/tolgee.png) #### [Tolgee](https://appstackbuilder.com/tools/tolgee) Free tier available Open-source localisation platform whose in-context editor lets you translate strings by alt-clicking them in your running app. [Pricing & alternatives →](https://appstackbuilder.com/tools/tolgee)[Visit site ↗](https://www.google.com/search?q=Tolgee%20signup) ![Weblate logo](https://appstackbuilder.com/logos/weblate.png) #### [Weblate](https://appstackbuilder.com/tools/weblate) Free tier available Copyleft web-based translation with tight Git integration — free hosting for libre projects, self-hosted for everyone else. [Pricing & alternatives →](https://appstackbuilder.com/tools/weblate)[Visit site ↗](https://www.google.com/search?q=Weblate%20signup) ### Free Maps & Location Tools(5 free tools) G #### [Geoapify](https://appstackbuilder.com/tools/geoapify) Free tier available OpenStreetMap-powered geocoding, routing, isolines and places APIs with straightforward daily-credit tiers. [Pricing & alternatives →](https://appstackbuilder.com/tools/geoapify)[Visit site ↗](https://www.google.com/search?q=Geoapify%20signup) L #### [LocationIQ](https://appstackbuilder.com/tools/locationiq) Free tier available Geocoding, maps and routing APIs at low flat rates, built on OpenStreetMap with generous daily request limits. [Pricing & alternatives →](https://appstackbuilder.com/tools/locationiq)[Visit site ↗](https://www.google.com/search?q=LocationIQ%20signup) M #### [Mapbox](https://appstackbuilder.com/tools/mapbox) Free tier available Developer-first mapping platform with fully customisable vector map styles, navigation and search, priced per map load. [Pricing & alternatives →](https://appstackbuilder.com/tools/mapbox)[Visit site ↗](https://www.google.com/search?q=Mapbox%20signup) M #### [MapTiler](https://appstackbuilder.com/tools/maptiler) Free tier available OpenStreetMap-based map tiles, geocoding and hosting with a genuinely cheap flat tier and self-hosting via MapTiler Server. [Pricing & alternatives →](https://appstackbuilder.com/tools/maptiler)[Visit site ↗](https://www.google.com/search?q=MapTiler%20signup) P #### [Protomaps](https://appstackbuilder.com/tools/protomaps) Free tier available Open-source map stack that packs the whole planet into a single file you host yourself — no tile server, no per-request billing. [Pricing & alternatives →](https://appstackbuilder.com/tools/protomaps)[Visit site ↗](https://www.google.com/search?q=Protomaps%20signup) ### Free Mobile Framework Tools(6 free tools) ![Expo (React Native) logo](https://appstackbuilder.com/expo.svg) #### [Expo (React Native)](https://appstackbuilder.com/tools/expo) Free tier available The fastest way to build cross-platform iOS and Android apps with React Native. [Pricing & alternatives →](https://appstackbuilder.com/tools/expo)[Visit site ↗](https://www.google.com/search?q=Expo%20%28React%20Native%29%20signup) ![Flutter logo](https://appstackbuilder.com/flutter.svg) #### [Flutter](https://appstackbuilder.com/tools/flutter) Free tier available Google's UI toolkit for building beautiful, natively compiled apps from a single Dart codebase. [Pricing & alternatives →](https://appstackbuilder.com/tools/flutter)[Visit site ↗](https://www.google.com/search?q=Flutter%20signup) ![Ionic logo](https://www.google.com/s2/favicons?domain=ionicframework.com&sz=128) #### [Ionic](https://appstackbuilder.com/tools/ionic) Free tier available Build cross-platform mobile and web apps with web tech (Angular/React/Vue) and one shared codebase. [Pricing & alternatives →](https://appstackbuilder.com/tools/ionic)[Visit site ↗](https://www.google.com/search?q=Ionic%20signup) ![Kotlin Multiplatform logo](https://www.google.com/s2/favicons?domain=kotlinlang.org&sz=128) #### [Kotlin Multiplatform](https://appstackbuilder.com/tools/kotlin-multiplatform) Free tier available Share business logic (and increasingly UI via Compose) across iOS, Android, web, and desktop from one Kotlin codebase. [Pricing & alternatives →](https://appstackbuilder.com/tools/kotlin-multiplatform)[Visit site ↗](https://www.google.com/search?q=Kotlin%20Multiplatform%20signup) ![React Native (bare) logo](https://appstackbuilder.com/react-native.svg) #### [React Native (bare)](https://appstackbuilder.com/tools/react-native) Free tier available Meta's framework for building native mobile apps using JavaScript/TypeScript without Expo. [Pricing & alternatives →](https://appstackbuilder.com/tools/react-native)[Visit site ↗](https://www.google.com/search?q=React%20Native%20%28bare%29%20signup) ![Tauri logo](https://www.google.com/s2/favicons?domain=tauri.app&sz=128) #### [Tauri](https://appstackbuilder.com/tools/tauri) Free tier available Build tiny, secure cross-platform desktop and mobile apps with a Rust core and any web frontend. [Pricing & alternatives →](https://appstackbuilder.com/tools/tauri)[Visit site ↗](https://www.google.com/search?q=Tauri%20signup) ### Free Monitoring & Observability Tools(7 free tools) ![Axiom logo](https://www.google.com/s2/favicons?domain=axiom.co&sz=128) #### [Axiom](https://appstackbuilder.com/tools/axiom) Free tier available Serverless log management and analytics built for huge volumes at low cost — 500GB/month free. [Pricing & alternatives →](https://appstackbuilder.com/tools/axiom)[Visit site ↗](https://www.google.com/search?q=Axiom%20signup) ![Better Stack logo](https://www.google.com/s2/favicons?domain=betterstack.com&sz=128) #### [Better Stack](https://appstackbuilder.com/tools/better-stack) Free tier available Modern, developer-friendly observability — logs, metrics, uptime monitoring, and incident management in one clean UI. [Pricing & alternatives →](https://appstackbuilder.com/tools/better-stack)[Visit site ↗](https://www.google.com/search?q=Better%20Stack%20signup) ![Datadog logo](https://www.google.com/s2/favicons?domain=datadoghq.com&sz=128) #### [Datadog](https://appstackbuilder.com/tools/datadog) Free tier available Enterprise-grade, full-stack observability — infrastructure, APM, logs, and 800+ integrations. Usage-based. [Pricing & alternatives →](https://appstackbuilder.com/tools/datadog)[Visit site ↗](https://www.google.com/search?q=Datadog%20signup) ![Grafana Cloud logo](https://www.google.com/s2/favicons?domain=grafana.com&sz=128) #### [Grafana Cloud](https://appstackbuilder.com/tools/grafana-cloud) Free tier available Managed Grafana, Prometheus, Loki, and Tempo — the most generous free tier for metrics, logs, and traces. [Pricing & alternatives →](https://appstackbuilder.com/tools/grafana-cloud)[Visit site ↗](https://www.google.com/search?q=Grafana%20Cloud%20signup) ![Highlight.io logo](https://www.google.com/s2/favicons?domain=highlight.io&sz=128) #### [Highlight.io](https://appstackbuilder.com/tools/highlight) Free tier available Open-source, full-stack monitoring with session replay, error tracking, and logs in one platform. [Pricing & alternatives →](https://appstackbuilder.com/tools/highlight)[Visit site ↗](https://www.google.com/search?q=Highlight.io%20signup) ![LogRocket logo](https://appstackbuilder.com/logrocket.png) #### [LogRocket](https://appstackbuilder.com/tools/logrocket) Free tier available Session replay and error tracking to understand user experience and debug issues. [Pricing & alternatives →](https://appstackbuilder.com/tools/logrocket)[Visit site ↗](https://www.google.com/search?q=LogRocket%20signup) ![Sentry logo](https://appstackbuilder.com/sentry.svg) #### [Sentry](https://appstackbuilder.com/tools/sentry) Free tier available Application monitoring and error tracking platform for developers. [Pricing & alternatives →](https://appstackbuilder.com/tools/sentry)[Visit site ↗](https://www.google.com/search?q=Sentry%20signup) ### Free Newsletter & Lifecycle Email Tools(4 free tools) ![Beehiiv logo](https://appstackbuilder.com/beehiiv.svg) #### [Beehiiv](https://appstackbuilder.com/tools/beehiiv) Free tier available Newsletter platform built for growth — with built-in monetization, referral programs, and ad network. [Pricing & alternatives →](https://appstackbuilder.com/tools/beehiiv)[Visit site ↗](https://www.beehiiv.com) ![Ghost logo](https://www.google.com/s2/favicons?domain=ghost.org&sz=128) #### [Ghost](https://appstackbuilder.com/tools/ghost) Free tier available Open-source publishing platform for blogs, newsletters, and memberships — with native subscriptions. [Pricing & alternatives →](https://appstackbuilder.com/tools/ghost)[Visit site ↗](https://www.google.com/search?q=Ghost%20signup) ![Kit (ConvertKit) logo](https://appstackbuilder.com/kit.svg) #### [Kit (ConvertKit)](https://appstackbuilder.com/tools/kit) Free tier available Email platform for creators — with powerful automations, paid newsletters, and a free plan up to 10,000 subscribers. [Pricing & alternatives →](https://appstackbuilder.com/tools/kit)[Visit site ↗](https://www.google.com/search?q=Kit%20%28ConvertKit%29%20signup) ![Loops logo](https://www.google.com/s2/favicons?domain=loops.so&sz=128) #### [Loops](https://appstackbuilder.com/tools/loops) Free tier available Modern email platform for SaaS — transactional + marketing emails with a clean API and great deliverability. [Pricing & alternatives →](https://appstackbuilder.com/tools/loops)[Visit site ↗](https://loops.so) ### Free Notifications & Realtime Tools(7 free tools) A #### [Ably](https://appstackbuilder.com/tools/ably) Free tier available Realtime messaging platform with guaranteed ordering, delivery and history — pub/sub, presence and push, on a global edge network. [Pricing & alternatives →](https://appstackbuilder.com/tools/ably)[Visit site ↗](https://www.google.com/search?q=Ably%20signup) C #### [Courier](https://appstackbuilder.com/tools/courier) Free tier available Notification API and template studio that routes one send across email, SMS, push and chat, priced per send. [Pricing & alternatives →](https://appstackbuilder.com/tools/courier)[Visit site ↗](https://www.google.com/search?q=Courier%20signup) K #### [Knock](https://appstackbuilder.com/tools/knock) Free tier available Notification infrastructure as a service: cross-channel workflows, batching, user preferences and an in-app feed, without running any of it. [Pricing & alternatives →](https://appstackbuilder.com/tools/knock)[Visit site ↗](https://www.google.com/search?q=Knock%20signup) M #### [MagicBell](https://appstackbuilder.com/tools/magicbell) Free tier available Embeddable notification inbox with ready-made UI components for React, Vue, Ember and iOS, backed by a delivery API. [Pricing & alternatives →](https://appstackbuilder.com/tools/magicbell)[Visit site ↗](https://www.google.com/search?q=MagicBell%20signup) N #### [Novu](https://appstackbuilder.com/tools/novu) Free tier available Open-source notification infrastructure: one workflow drives email, SMS, push, chat and a drop-in in-app inbox. [Pricing & alternatives →](https://appstackbuilder.com/tools/novu)[Visit site ↗](https://www.google.com/search?q=Novu%20signup) O #### [OneSignal](https://appstackbuilder.com/tools/onesignal) Free tier available Push, in-app, email and SMS messaging platform aimed at mobile and web audiences, with segmentation and campaign tooling. [Pricing & alternatives →](https://appstackbuilder.com/tools/onesignal)[Visit site ↗](https://www.google.com/search?q=OneSignal%20signup) P #### [Pusher Channels](https://appstackbuilder.com/tools/pusher) Free tier available Hosted WebSocket pub/sub for realtime features — live updates, presence and in-app alerts — priced by connections and daily messages. [Pricing & alternatives →](https://appstackbuilder.com/tools/pusher)[Visit site ↗](https://www.google.com/search?q=Pusher%20Channels%20signup) ### Free Product Launch Platforms Tools(8 free tools) ![Fazier logo](https://appstackbuilder.com/fazier.svg) #### [Fazier](https://appstackbuilder.com/tools/fazier) Free tier available Free daily product discovery platform — submit your product to be featured alongside other new launches and get community upvotes. [Pricing & alternatives →](https://appstackbuilder.com/tools/fazier)[Visit site ↗](https://www.google.com/search?q=Fazier%20signup) ![Hacker News logo](https://appstackbuilder.com/hackernews.svg) #### [Hacker News](https://appstackbuilder.com/tools/hackernews) Free tier available A social news platform focused on startups, technology, and entrepreneurship. [Pricing & alternatives →](https://appstackbuilder.com/tools/hackernews)[Visit site ↗](https://www.google.com/search?q=Hacker%20News%20signup) ![PeerPush logo](https://appstackbuilder.com/peerpush.svg) #### [PeerPush](https://appstackbuilder.com/tools/peerpush) Free tier available A launch and discovery platform where builders get peer-powered promotion, real feedback, and sustained visibility beyond launch day. [Pricing & alternatives →](https://appstackbuilder.com/tools/peerpush)[Visit site ↗](https://www.google.com/search?q=PeerPush%20signup) ![Product Hunt logo](https://appstackbuilder.com/producthunt.svg) #### [Product Hunt](https://appstackbuilder.com/tools/producthunt) Free tier available The go-to platform to launch and discover new tech products. [Pricing & alternatives →](https://appstackbuilder.com/tools/producthunt)[Visit site ↗](https://www.google.com/search?q=Product%20Hunt%20signup) ![SaaSworthy logo](https://www.google.com/s2/favicons?domain=saasworthy.com&sz=128) #### [SaaSworthy](https://appstackbuilder.com/tools/saasworthy) Free tier available A B2B software discovery and comparison platform focused on SaaS buyers. [Pricing & alternatives →](https://appstackbuilder.com/tools/saasworthy)[Visit site ↗](https://www.google.com/search?q=SaaSworthy%20signup) ![SideProjectors logo](https://www.google.com/s2/favicons?domain=sideprojectors.com&sz=128) #### [SideProjectors](https://appstackbuilder.com/tools/sideprojectors) Free tier available A marketplace to sell, buy, and promote side projects and digital products. [Pricing & alternatives →](https://appstackbuilder.com/tools/sideprojectors)[Visit site ↗](https://www.google.com/search?q=SideProjectors%20signup) ![TinyLaunch logo](https://appstackbuilder.com/tinylaunch.svg) #### [TinyLaunch](https://appstackbuilder.com/tools/tinylaunch) Free tier available Weekly product launch competition for indie makers — top 3 products win a badge and a high-authority dofollow backlink (DR 62). [Pricing & alternatives →](https://appstackbuilder.com/tools/tinylaunch)[Visit site ↗](https://www.google.com/search?q=TinyLaunch%20signup) ![Uneed logo](https://appstackbuilder.com/uneed.svg) #### [Uneed](https://appstackbuilder.com/tools/uneed) Free tier available A curated launch platform to showcase new products and gain traffic with SEO backlinks. [Pricing & alternatives →](https://appstackbuilder.com/tools/uneed)[Visit site ↗](https://www.google.com/search?q=Uneed%20signup) ### Free Project Management Tools(6 free tools) ![Asana logo](https://appstackbuilder.com/asana.svg) #### [Asana](https://appstackbuilder.com/tools/asana) Free tier available Work management platform for teams to plan, organize, and execute projects. [Pricing & alternatives →](https://appstackbuilder.com/tools/asana)[Visit site ↗](https://www.google.com/search?q=Asana%20signup) ![ClickUp logo](https://appstackbuilder.com/clickup.svg) #### [ClickUp](https://appstackbuilder.com/tools/clickup) Free tier available All-in-one productivity platform replacing multiple apps with one unified workspace. [Pricing & alternatives →](https://appstackbuilder.com/tools/clickup)[Visit site ↗](https://www.google.com/search?q=ClickUp%20signup) ![Jira logo](https://appstackbuilder.com/jira.svg) #### [Jira](https://appstackbuilder.com/tools/jira) Free tier available Industry-standard project management and issue tracking for software development teams. [Pricing & alternatives →](https://appstackbuilder.com/tools/jira)[Visit site ↗](https://www.google.com/search?q=Jira%20signup) ![Linear logo](https://appstackbuilder.com/linear.svg) #### [Linear](https://appstackbuilder.com/tools/linear) Free tier available Fast issue tracking and project management tool built for modern software teams. [Pricing & alternatives →](https://appstackbuilder.com/tools/linear)[Visit site ↗](https://www.google.com/search?q=Linear%20signup) ![Notion logo](https://appstackbuilder.com/notion.svg) #### [Notion](https://appstackbuilder.com/tools/notion) Free tier available All-in-one workspace for notes, docs, wikis, and project management with powerful databases. [Pricing & alternatives →](https://appstackbuilder.com/tools/notion)[Visit site ↗](https://www.google.com/search?q=Notion%20signup) ![Trello logo](https://appstackbuilder.com/trello.svg) #### [Trello](https://appstackbuilder.com/tools/trello) Free tier available Visual Kanban-style project management tool for organizing tasks and workflows. [Pricing & alternatives →](https://appstackbuilder.com/tools/trello)[Visit site ↗](https://www.google.com/search?q=Trello%20signup) ### Free Sales & Marketing Tools(4 free tools) ![Apollo.io logo](https://appstackbuilder.com/apollo.svg) #### [Apollo.io](https://appstackbuilder.com/tools/apollo) Free tier available B2B sales intelligence and engagement platform with 275M+ contacts, prospecting, and outreach automation. [Pricing & alternatives →](https://appstackbuilder.com/tools/apollo)[Visit site ↗](https://www.google.com/search?q=Apollo.io%20signup) ![Brevo logo](https://appstackbuilder.com/brevo.svg) #### [Brevo](https://appstackbuilder.com/tools/brevo) Free tier available Email & SMS marketing platform with transactional email, automation, and CRM — all at low cost. [Pricing & alternatives →](https://appstackbuilder.com/tools/brevo)[Visit site ↗](https://www.google.com/search?q=Brevo%20signup) ![HubSpot CRM logo](https://appstackbuilder.com/hubspot.svg) #### [HubSpot CRM](https://appstackbuilder.com/tools/hubspot) Free tier available All-in-one CRM platform covering marketing, sales, and customer service with a generous free tier. [Pricing & alternatives →](https://appstackbuilder.com/tools/hubspot)[Visit site ↗](https://www.google.com/search?q=HubSpot%20CRM%20signup) ![Mailchimp logo](https://appstackbuilder.com/mailchimp.svg) #### [Mailchimp](https://appstackbuilder.com/tools/mailchimp) Free tier available The world's most popular email marketing platform with drag-and-drop campaigns, automations, and audience insights. [Pricing & alternatives →](https://appstackbuilder.com/tools/mailchimp)[Visit site ↗](https://mailchimp.com/) ### Free Scheduling & Calendars Tools(3 free tools) ![Cal.com logo](https://www.google.com/s2/favicons?domain=cal.com&sz=128) #### [Cal.com](https://appstackbuilder.com/tools/cal-com) Free tier available Open-source scheduling infrastructure — a self-hostable Calendly alternative with a free tier. [Pricing & alternatives →](https://appstackbuilder.com/tools/cal-com)[Visit site ↗](https://www.google.com/search?q=Cal.com%20signup) ![Calendly logo](https://www.google.com/s2/favicons?domain=calendly.com&sz=128) #### [Calendly](https://appstackbuilder.com/tools/calendly) Free tier available The most popular scheduling tool — share a link, let people book, and sync with your calendar automatically. [Pricing & alternatives →](https://appstackbuilder.com/tools/calendly)[Visit site ↗](https://www.google.com/search?q=Calendly%20signup) ![TidyCal logo](https://www.google.com/s2/favicons?domain=tidycal.com&sz=128) #### [TidyCal](https://appstackbuilder.com/tools/tidycal) Free tier available Affordable Calendly alternative with a solid free tier and a low-cost lifetime deal. [Pricing & alternatives →](https://appstackbuilder.com/tools/tidycal)[Visit site ↗](https://www.google.com/search?q=TidyCal%20signup) ### Free Search Tools(6 free tools) ![Algolia logo](https://www.google.com/s2/favicons?domain=algolia.com&sz=128) #### [Algolia](https://appstackbuilder.com/tools/algolia) Free tier available Hosted search API for fast, relevant search experiences. [Pricing & alternatives →](https://appstackbuilder.com/tools/algolia)[Visit site ↗](https://www.google.com/search?q=Algolia%20signup) ![Elasticsearch logo](https://www.google.com/s2/favicons?domain=elastic.co&sz=128) #### [Elasticsearch](https://appstackbuilder.com/tools/elasticsearch) Free tier available The most widely used search and analytics engine — full-text search, vectors, and observability at scale. [Pricing & alternatives →](https://appstackbuilder.com/tools/elasticsearch)[Visit site ↗](https://www.google.com/search?q=Elasticsearch%20signup) ![Meilisearch logo](https://www.google.com/s2/favicons?domain=meilisearch.com&sz=128) #### [Meilisearch](https://appstackbuilder.com/tools/meilisearch) Free tier available Open-source search engine with instant, typo-tolerant search. [Pricing & alternatives →](https://appstackbuilder.com/tools/meilisearch)[Visit site ↗](https://www.google.com/search?q=Meilisearch%20signup) ![OpenSearch logo](https://www.google.com/s2/favicons?domain=opensearch.org&sz=128) #### [OpenSearch](https://appstackbuilder.com/tools/opensearch) Free tier available Apache-2.0 open-source search and analytics suite (Elasticsearch fork) backed by AWS — fully free to self-host. [Pricing & alternatives →](https://appstackbuilder.com/tools/opensearch)[Visit site ↗](https://www.google.com/search?q=OpenSearch%20signup) ![Orama logo](https://www.google.com/s2/favicons?domain=orama.com&sz=128) #### [Orama](https://appstackbuilder.com/tools/orama) Free tier available Tiny, fast open-source full-text and vector search engine that runs anywhere — browser, edge, or server. [Pricing & alternatives →](https://appstackbuilder.com/tools/orama)[Visit site ↗](https://www.google.com/search?q=Orama%20signup) ![Typesense logo](https://www.google.com/s2/favicons?domain=typesense.org&sz=128) #### [Typesense](https://appstackbuilder.com/tools/typesense) Free tier available Fast, typo-tolerant open-source search engine alternative to Algolia. [Pricing & alternatives →](https://appstackbuilder.com/tools/typesense)[Visit site ↗](https://www.google.com/search?q=Typesense%20signup) ### Free Security & Passwords Tools(1 free tool) ![Infisical logo](https://appstackbuilder.com/logos/infisical.ico) #### [Infisical](https://appstackbuilder.com/tools/infisical) Free tier available Open-source secrets management and internal PKI. [Pricing & alternatives →](https://appstackbuilder.com/tools/infisical)[Visit site ↗](https://www.google.com/search?q=Infisical%20signup) ### Free SEO Tools Tools(1 free tool) ![OpenSEO logo](https://appstackbuilder.com/logos/openseo.png) #### [OpenSEO](https://appstackbuilder.com/tools/openseo) Free tier available Open-source, MCP-native SEO suite you can self-host or run pay-as-you-go. [Pricing & alternatives →](https://appstackbuilder.com/tools/openseo)[Visit site ↗](https://www.google.com/search?q=OpenSEO%20signup) ### Free File Storage Tools(3 free tools) F #### [Filen](https://appstackbuilder.com/tools/filen) Free tier available Zero-knowledge encrypted cloud storage from Germany, with stackable plans and unusually cheap per-terabyte pricing. [Pricing & alternatives →](https://appstackbuilder.com/tools/filen)[Visit site ↗](https://www.google.com/search?q=Filen%20signup) K #### [Koofr](https://appstackbuilder.com/tools/koofr) Free tier available European cloud storage that also connects your existing Dropbox, Google Drive and OneDrive accounts into one searchable place. [Pricing & alternatives →](https://appstackbuilder.com/tools/koofr)[Visit site ↗](https://www.google.com/search?q=Koofr%20signup) ![Nextcloud logo](https://appstackbuilder.com/logos/nextcloud.png) #### [Nextcloud](https://appstackbuilder.com/tools/nextcloud) Free tier available Self-hosted file sync and share — Dropbox, Google Docs and Calendar on your own server, with no per-user licence. [Pricing & alternatives →](https://appstackbuilder.com/tools/nextcloud)[Visit site ↗](https://www.google.com/search?q=Nextcloud%20signup) ### Free Testing Tools(5 free tools) ![Checkly logo](https://www.google.com/s2/favicons?domain=checklyhq.com&sz=128) #### [Checkly](https://appstackbuilder.com/tools/checkly) Free tier available Code-first synthetic monitoring and E2E checks using Playwright — monitoring-as-code with a free tier. [Pricing & alternatives →](https://appstackbuilder.com/tools/checkly)[Visit site ↗](https://www.google.com/search?q=Checkly%20signup) ![Cypress logo](https://appstackbuilder.com/cypress.svg) #### [Cypress](https://appstackbuilder.com/tools/cypress) Free tier available JavaScript end-to-end testing framework with time-travel debugging. [Pricing & alternatives →](https://appstackbuilder.com/tools/cypress)[Visit site ↗](https://www.google.com/search?q=Cypress%20signup) ![Jest logo](https://www.google.com/s2/favicons?domain=jestjs.io&sz=128) #### [Jest](https://appstackbuilder.com/tools/jest) Free tier available The most widely used JavaScript testing framework — zero-config, snapshots, and a huge ecosystem. [Pricing & alternatives →](https://appstackbuilder.com/tools/jest)[Visit site ↗](https://www.google.com/search?q=Jest%20signup) ![Playwright logo](https://appstackbuilder.com/playwright.svg) #### [Playwright](https://appstackbuilder.com/tools/playwright) Free tier available Cross-browser end-to-end testing framework by Microsoft. [Pricing & alternatives →](https://appstackbuilder.com/tools/playwright)[Visit site ↗](https://www.google.com/search?q=Playwright%20signup) ![Vitest logo](https://www.google.com/s2/favicons?domain=vitest.dev&sz=128) #### [Vitest](https://appstackbuilder.com/tools/vitest) Free tier available Blazing-fast, Vite-native unit test framework with a Jest-compatible API — the default for modern JS/TS projects. [Pricing & alternatives →](https://appstackbuilder.com/tools/vitest)[Visit site ↗](https://www.google.com/search?q=Vitest%20signup) ### Free UI/UX Tools(3 free tools) ![Figma logo](https://appstackbuilder.com/figma.svg) #### [Figma](https://appstackbuilder.com/tools/figma) Free tier available Collaborative ui-ux design platform for designing, prototyping, and handing off products in real time. [Pricing & alternatives →](https://appstackbuilder.com/tools/figma)[Visit site ↗](https://www.figma.com) ![Penpot logo](https://appstackbuilder.com/penpot.svg) #### [Penpot](https://appstackbuilder.com/tools/penpot) Free tier available Open-source design and prototyping platform with collaborative ui-ux tooling for teams. [Pricing & alternatives →](https://appstackbuilder.com/tools/penpot)[Visit site ↗](https://www.google.com/search?q=Penpot%20signup) ![Uizard logo](https://appstackbuilder.com/uizard.svg) #### [Uizard](https://appstackbuilder.com/tools/uizard) Free tier available AI-powered ui-ux design tool that turns sketches and prompts into interactive screens and prototypes. [Pricing & alternatives →](https://appstackbuilder.com/tools/uizard)[Visit site ↗](https://www.google.com/search?q=Uizard%20signup) ### Free Vector Database / RAG Tools(6 free tools) ![Chroma logo](https://www.google.com/s2/favicons?domain=trychroma.com&sz=128) #### [Chroma](https://appstackbuilder.com/tools/chroma) Free tier available Developer-friendly open-source embedding database — the easiest way to add vector search to a prototype. [Pricing & alternatives →](https://appstackbuilder.com/tools/chroma)[Visit site ↗](https://www.google.com/search?q=Chroma%20signup) ![LanceDB logo](https://www.google.com/s2/favicons?domain=lancedb.com&sz=128) #### [LanceDB](https://appstackbuilder.com/tools/lancedb) Free tier available Serverless, embedded vector database that runs inside your app process — no infrastructure to manage. [Pricing & alternatives →](https://appstackbuilder.com/tools/lancedb)[Visit site ↗](https://www.google.com/search?q=LanceDB%20signup) ![Milvus logo](https://www.google.com/s2/favicons?domain=milvus.io&sz=128) #### [Milvus](https://appstackbuilder.com/tools/milvus) Free tier available Open-source vector database built for billion-scale embeddings, with managed Zilliz Cloud option. [Pricing & alternatives →](https://appstackbuilder.com/tools/milvus)[Visit site ↗](https://www.google.com/search?q=Milvus%20signup) ![Pinecone logo](https://www.google.com/s2/favicons?domain=pinecone.io&sz=128) #### [Pinecone](https://appstackbuilder.com/tools/pinecone) Free tier available Fully managed serverless vector database for AI search and RAG, with hybrid search and per-tenant namespaces. [Pricing & alternatives →](https://appstackbuilder.com/tools/pinecone)[Visit site ↗](https://www.pinecone.io/start/) ![Qdrant logo](https://www.google.com/s2/favicons?domain=qdrant.tech&sz=128) #### [Qdrant](https://appstackbuilder.com/tools/qdrant) Free tier available High-performance open-source vector search engine with rich payload filtering — great for agent memory and RAG. [Pricing & alternatives →](https://appstackbuilder.com/tools/qdrant)[Visit site ↗](https://qdrant.tech/documentation) ![Weaviate logo](https://www.google.com/s2/favicons?domain=weaviate.io&sz=128) #### [Weaviate](https://appstackbuilder.com/tools/weaviate) Free tier available Open-source vector database with built-in vectorization modules and hybrid search for RAG applications. [Pricing & alternatives →](https://appstackbuilder.com/tools/weaviate)[Visit site ↗](https://weaviate.io) ### Free Version Control & Code Review Tools(6 free tools) ![Bitbucket logo](https://appstackbuilder.com/logos/bitbucket.png) #### [Bitbucket](https://appstackbuilder.com/tools/bitbucket) Free tier available Atlassian's Git host — cheapest per seat of the big three, and the one that plugs straight into Jira. [Pricing & alternatives →](https://appstackbuilder.com/tools/bitbucket)[Visit site ↗](https://www.google.com/search?q=Bitbucket%20signup) ![CodeRabbit logo](https://appstackbuilder.com/logos/coderabbit.png) #### [CodeRabbit](https://appstackbuilder.com/tools/coderabbit) Free tier available AI pull-request reviewer that leaves line-level comments, one-click fixes and a summary on every PR. [Pricing & alternatives →](https://appstackbuilder.com/tools/coderabbit)[Visit site ↗](https://www.google.com/search?q=CodeRabbit%20signup) ![Gitea logo](https://appstackbuilder.com/logos/gitea.png) #### [Gitea](https://appstackbuilder.com/tools/gitea) Free tier available A lightweight self-hosted Git service that runs from a single binary — the whole forge on hardware you control. [Pricing & alternatives →](https://appstackbuilder.com/tools/gitea)[Visit site ↗](https://www.google.com/search?q=Gitea%20signup) ![GitHub logo](https://appstackbuilder.com/logos/github.ico) #### [GitHub](https://appstackbuilder.com/tools/github) Free tier available Where the code, the pull requests and most of the people who might contribute to them already are. [Pricing & alternatives →](https://appstackbuilder.com/tools/github)[Visit site ↗](https://www.google.com/search?q=GitHub%20signup) ![GitLab logo](https://appstackbuilder.com/logos/gitlab.png) #### [GitLab](https://appstackbuilder.com/tools/gitlab) Free tier available One application for repos, CI/CD, security scanning and releases — and the only major host you can also run yourself. [Pricing & alternatives →](https://appstackbuilder.com/tools/gitlab)[Visit site ↗](https://www.google.com/search?q=GitLab%20signup) ![Graphite logo](https://appstackbuilder.com/logos/graphite.png) #### [Graphite](https://appstackbuilder.com/tools/graphite) Free tier available Stacked pull requests and AI code review on top of GitHub — for teams where review latency is the bottleneck. [Pricing & alternatives →](https://appstackbuilder.com/tools/graphite)[Visit site ↗](https://www.google.com/search?q=Graphite%20signup) ### Free Video & Screen Recording Tools(4 free tools) ![Loom logo](https://www.google.com/s2/favicons?domain=loom.com&sz=128) #### [Loom](https://appstackbuilder.com/tools/loom) Free tier available Async video messaging — record your screen and camera to explain things faster than meetings. Free tier available. [Pricing & alternatives →](https://appstackbuilder.com/tools/loom)[Visit site ↗](https://www.google.com/search?q=Loom%20signup) ![Tella logo](https://www.google.com/s2/favicons?domain=tella.tv&sz=128) #### [Tella](https://appstackbuilder.com/tools/tella) Free tier available Screen + camera recorder with built-in editing that makes polished demo and async videos in minutes. [Pricing & alternatives →](https://appstackbuilder.com/tools/tella)[Visit site ↗](https://www.google.com/search?q=Tella%20signup) ![Vidyard logo](https://www.google.com/s2/favicons?domain=vidyard.com&sz=128) #### [Vidyard](https://appstackbuilder.com/tools/vidyard) Free tier available Async video messaging built for sales and marketing, with viewer analytics and CRM integrations. [Pricing & alternatives →](https://appstackbuilder.com/tools/vidyard)[Visit site ↗](https://www.google.com/search?q=Vidyard%20signup) ![Zight logo](https://www.google.com/s2/favicons?domain=zight.com&sz=128) #### [Zight](https://appstackbuilder.com/tools/zight) Free tier available All-in-one screen recording, GIFs, and screenshots with instant shareable links (formerly CloudApp). [Pricing & alternatives →](https://appstackbuilder.com/tools/zight)[Visit site ↗](https://www.google.com/search?q=Zight%20signup) ### Free Video Infrastructure Tools(3 free tools) a #### [api.video](https://appstackbuilder.com/tools/api-video) Free tier available Video API with free unlimited encoding, priced per minute hosted and per minute delivered, plus live streaming and analytics. [Pricing & alternatives →](https://appstackbuilder.com/tools/api-video)[Visit site ↗](https://www.google.com/search?q=api.video%20signup) M #### [Mux](https://appstackbuilder.com/tools/mux) Free tier available Video API for developers: upload, encode, store and stream adaptive video with per-title encoding and real-time viewer analytics. [Pricing & alternatives →](https://appstackbuilder.com/tools/mux)[Visit site ↗](https://www.google.com/search?q=Mux%20signup) W #### [Wistia](https://appstackbuilder.com/tools/wistia) Free tier available Video hosting built for marketing teams: player customisation, lead capture forms, heatmaps and CRM integrations. [Pricing & alternatives →](https://appstackbuilder.com/tools/wistia)[Visit site ↗](https://www.google.com/search?q=Wistia%20signup) ### Free VPN & Private Networking Tools(4 free tools) ![NetBird logo](https://appstackbuilder.com/logos/netbird.png) #### [NetBird](https://appstackbuilder.com/tools/netbird) Free tier available Open-source WireGuard mesh you can self-host, or buy hosted. [Pricing & alternatives →](https://appstackbuilder.com/tools/netbird)[Visit site ↗](https://www.google.com/search?q=NetBird%20signup) ![Tailscale logo](https://appstackbuilder.com/logos/tailscale.svg) #### [Tailscale](https://appstackbuilder.com/tools/tailscale) Free tier available WireGuard mesh VPN that connects your machines to each other, not to an exit country. [Pricing & alternatives →](https://appstackbuilder.com/tools/tailscale)[Visit site ↗](https://www.google.com/search?q=Tailscale%20signup) ![Twingate logo](https://appstackbuilder.com/logos/twingate.png) #### [Twingate](https://appstackbuilder.com/tools/twingate) Free tier available Zero-trust remote access: per-resource permissions rather than a network-wide tunnel. [Pricing & alternatives →](https://appstackbuilder.com/tools/twingate)[Visit site ↗](https://www.google.com/search?q=Twingate%20signup) ![WireGuard logo](https://appstackbuilder.com/logos/wireguard.png) #### [WireGuard](https://appstackbuilder.com/tools/wireguard) Free tier available The protocol underneath most of this category — run it yourself on a VPS. [Pricing & alternatives →](https://appstackbuilder.com/tools/wireguard)[Visit site ↗](https://www.google.com/search?q=WireGuard%20signup) ### Free Web Scraping & Data Extraction Tools(5 free tools) A #### [Apify](https://appstackbuilder.com/tools/apify) Free tier available Marketplace and runtime for 'Actors' — thousands of prebuilt scrapers you can rent, plus a platform to deploy your own. [Pricing & alternatives →](https://appstackbuilder.com/tools/apify)[Visit site ↗](https://www.google.com/search?q=Apify%20signup) B #### [Bright Data Web Scraper API](https://appstackbuilder.com/tools/bright-data) Free tier available Scraper API over the largest commercial proxy network, priced per 1,000 records delivered rather than per request. [Pricing & alternatives →](https://appstackbuilder.com/tools/bright-data)[Visit site ↗](https://www.google.com/search?q=Bright%20Data%20Web%20Scraper%20API%20signup) B #### [Browserless](https://appstackbuilder.com/tools/browserless) Free tier available Hosted headless Chrome you connect Puppeteer or Playwright to over WebSocket, with stealth, proxies and CAPTCHA solving built in. [Pricing & alternatives →](https://appstackbuilder.com/tools/browserless)[Visit site ↗](https://www.google.com/search?q=Browserless%20signup) F #### [Firecrawl](https://appstackbuilder.com/tools/firecrawl) Free tier available Turns any site into LLM-ready markdown with one API call — crawl, scrape, search and extract, with JS rendering and proxies handled for you. [Pricing & alternatives →](https://appstackbuilder.com/tools/firecrawl)[Visit site ↗](https://www.google.com/search?q=Firecrawl%20signup) O #### [Oxylabs Web Scraper API](https://appstackbuilder.com/tools/oxylabs) Free tier available Enterprise-grade scraping API on top of one of the largest residential proxy networks, billed per 1,000 successful results. [Pricing & alternatives →](https://appstackbuilder.com/tools/oxylabs)[Visit site ↗](https://www.google.com/search?q=Oxylabs%20Web%20Scraper%20API%20signup) ### Free Website Builders Tools(1 free tool) ![Carrd logo](https://appstackbuilder.com/logos/carrd.ico) #### [Carrd](https://appstackbuilder.com/tools/carrd) Free tier available One-page sites for $19 a year. [Pricing & alternatives →](https://appstackbuilder.com/tools/carrd)[Visit site ↗](https://carrd.co/signup) ## Related Resources [Prebuilt Tech StacksCurated stacks for every budget and use case](https://appstackbuilder.com/stacks)[Tool AlternativesFind alternatives to any developer tool](https://appstackbuilder.com/tool-alternatives)[Build SaaS for FreeComplete guide to free tier tools in 2026](https://appstackbuilder.com/blog/build-saas-free-free-tier-tools-2026)