What is App Stack Builder?

App Stack Builder is a free AI-powered tool that helps founders and developers choose the right tech stack for their projects based on budget, app type, team size, and skill level.

What is the best tech stack for SaaS in 2026?

The best tech stack for SaaS in 2026 typically includes Next.js 16 for frontend, Supabase for database and auth, Vercel for hosting, Stripe for payments, and PostHog for analytics. App Stack Builder can generate a personalized recommendation based on your specific budget and requirements.

Is App Stack Builder free to use?

Yes, App Stack Builder is completely free to use. You can generate unlimited tech stack recommendations without any cost.

What types of apps can I build with the recommended stacks?

App Stack Builder supports various app types including SaaS applications, web apps, mobile apps, e-commerce stores, internal tools, and AI/ML products.

How much does a SaaS tech stack cost per month?

A modern SaaS tech stack can cost anywhere from $0-50/month for bootstrapped startups using free tiers, $100-300/month for growth-stage startups, to $500+/month for enterprise-ready infrastructure. App Stack Builder helps you find the best tools within your specific budget.

What is the best tech stack for solo founders?

For solo founders, we recommend Next.js + Vercel (free), Supabase (free tier), Supabase Auth (free), Stripe (pay as you go), and Plausible or PostHog for analytics. This stack can run your entire SaaS for under $50/month.

Can I export my tech stack recommendations?

Yes, you can export your tech stack recommendations as a PDF document or copy them to your clipboard. You can also share a link to your stack with others.

All launches

AI Generationseedream55.ioOct 31, 2026

Seedream 5.5

Name: App Stack Builder
Availability: InStock

Browser app to generate AI images from text or photos, 2K or 4K

Visit Seedream 5.5 Share on X

About

Seedream 5.5 (seedream55.io) is a web app for making AI images in your browser, with nothing to install and no API key. Start from text: describe the scene in a prompt of up to 5,000 characters. Or start from photos: upload up to 10 JPEG, PNG or WebP reference images, each up to 5 MB and 256 to 5,760 pixels on each side, and describe the change. Choose 1K or 2K output and one of eight aspect ratios, from 1:1 to 21:9; every result is a PNG. Typical uses include product images, e-commerce visuals, storyboards and social posts. Signing up with Google gives free trial credits, no card required: 10 credits for a 1K image and 16 credits for a 2K image. Credits are reserved when a generation starts and released automatically if it fails, so a failed task costs nothing. Paid plans add monthly credits. The site also has a features page, an FAQ, and a release date page.