--- title: "2 Best E2B Alternatives in 2026 (Compared)" description: "Looking for an E2B alternative? Compare the best Agent Sandboxes & Code Execution alternatives to E2B by pricing, free tiers, and features — find the right fit for your startup." source: https://appstackbuilder.com/tool-alternatives/e2b retrieved: 2026-10-07 --- Agent Sandboxes & Code Execution # The 2 Best E2B Alternatives in 2026 Looking for an alternative to [E2B](https://appstackbuilder.com/tools/e2b)? Below we compare the best agent sandboxes & code execution alternatives by pricing, free tiers, and what each is best for — so you can pick the right fit for your budget and stack. Category Agent Sandboxes & Code Execution E2B pricing Free tier available Free tier Yes Alternatives 2 compared ## Why look for a E2B alternative? E2B is a solid agent sandboxes & code execution choice, but it isn't the right fit for everyone. The most common reasons teams evaluate alternatives: * −$150/month before any compute on the first paid tier * −Hobby sessions cap at one hour * −Usage billing on top of the plan makes costs harder to forecast ## E2B vs Alternatives — Quick Comparison | Tool | Pricing | Free tier | Rating | Best for | | ----------------------------------------- | ------------------------ | --------- | ------ | ------------------------------------------------------- | | [E2B](https://appstackbuilder.com/tools/e2b)You searched | Free · paid from $150/mo | ✓ | 4.6 | Agent Sandboxes & Code Execution — sandbox, agents | | 1.[Modal](https://appstackbuilder.com/tools/modal) | Free · paid from $250/mo | ✓ | 4.7 | Agent Sandboxes & Code Execution — sandbox, serverless | | 2.[Vercel Sandbox](https://appstackbuilder.com/tools/vercel-sandbox) | Free · then usage-based | ✓ | 4.5 | Agent Sandboxes & Code Execution — sandbox, firecracker | ## Top E2B Alternatives, Explained ![Modal](https://www.google.com/s2/favicons?domain=modal.com&sz=128) ### 1. Modal Free tier4.7· Free · paid from $250/mo Modal lets you define infrastructure in Python and run it on demand: functions, batch jobs, web endpoints, GPU inference and, increasingly, sandboxes for agent-generated code. It sits in this category because its Sandbox API runs untrusted code in isolated containers billed by the second, at $0.00003942 per core-second and $0.00000667 per GiB-second. The same account can reach GPUs from T4s up to B200s when an agent needs one. Starter is $0 plus compute, with $30/month free and 3 seats. Team is $250/month plus compute, with $100 of credit and unlimited seats. * ✓Sandboxes, GPUs and jobs on one platform and one bill * ✓Infrastructure as Python, with no YAML or Dockerfiles required * ✓$30/month free covers a lot of prototyping [Modal pricing & review ](https://appstackbuilder.com/tools/modal)[E2B vs Modal ](https://appstackbuilder.com/compare/e2b-vs-modal) ![Vercel Sandbox](https://www.google.com/s2/favicons?domain=vercel.com&sz=128) ### 2. Vercel Sandbox Free tier4.5· Free · then usage-based Vercel Sandbox runs each session in an isolated Firecracker microVM, in 19 regions, with up to 8 vCPUs and 24-hour sessions on Pro. Its pricing suits agents well. Active CPU is billed only while code is actually executing ($0.128/hour); time spent waiting on an LLM call does not count. Memory is billed as provisioned ($0.0212/GB-hour), and downloads such as npm installs are free. Hobby includes 5 CPU-hours, 420 GB-hours and 5,000 creations a month, with 45-minute sessions and 10 concurrent sandboxes. On Pro, usage draws down the plan's $20 monthly credit first, and concurrency rises to 10,000. * ✓Active-CPU billing: idle time waiting on the model is free * ✓Firecracker isolation with snapshots and persistent drives * ✓Natural fit if the app already runs on Vercel [Vercel Sandbox pricing & review ](https://appstackbuilder.com/tools/vercel-sandbox)[E2B vs Vercel Sandbox ](https://appstackbuilder.com/compare/e2b-vs-vercel-sandbox) ## Frequently Asked Questions What are the best alternatives to E2B in 2026?⌄ The best E2B alternatives in 2026 are Modal, Vercel Sandbox. Each is a agent sandboxes & code execution option you can compare on pricing, free tiers, and features in the table above. Is there a free alternative to E2B?⌄ Yes — Modal, Vercel Sandbox offer free tiers, making them strong free E2B alternatives for bootstrapped startups. Why look for a E2B alternative?⌄ A common reason teams switch is $150/month before any compute on the first paid tier. Beyond that, people compare agent sandboxes & code execution tools on pricing, specific feature gaps, ease of use, and whether an open-source or free-tier option exists — so they can pick the best fit for their stack and budget. What is the cheapest E2B alternative?⌄ Modal is among the most affordable E2B alternatives — free · paid from $250/mo. Check the comparison table above for the full pricing breakdown. Which E2B alternative is rated highest?⌄ Modal is the highest-rated E2B alternative in our catalog at 4.7 out of 5, making it a strong pick if you want a well-reviewed option. ## Find your perfect agent sandboxes & code execution tool Skip the research. Get a free AI-powered tech stack matched to your budget, app type, and team size in seconds. [Build my stack free ](https://appstackbuilder.com/)