--- title: "2 Best Vercel Sandbox Alternatives in 2026 (Compared)" description: "Looking for a Vercel Sandbox alternative? Compare the best Agent Sandboxes & Code Execution alternatives to Vercel Sandbox by pricing, free tiers, and features — find the right fit for your startup." source: https://appstackbuilder.com/tool-alternatives/vercel-sandbox retrieved: 2026-10-07 --- Agent Sandboxes & Code Execution # The 2 Best Vercel Sandbox Alternatives in 2026 Looking for an alternative to [Vercel Sandbox](https://appstackbuilder.com/tools/vercel-sandbox)? 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 Vercel Sandbox pricing Free tier available Free tier Yes Alternatives 2 compared ## Why look for a Vercel Sandbox alternative? Vercel Sandbox is a solid agent sandboxes & code execution choice, but it isn't the right fit for everyone. The most common reasons teams evaluate alternatives: * −Requires a Vercel account, and Pro for serious use * −Max 8 vCPUs / 16 GB below Enterprise * −Many metered dimensions to model ## Vercel Sandbox vs Alternatives — Quick Comparison | Tool | Pricing | Free tier | Rating | Best for | | --------------------------------------------------- | ------------------------ | --------- | ------ | ------------------------------------------------------- | | [Vercel Sandbox](https://appstackbuilder.com/tools/vercel-sandbox)You searched | Free · then usage-based | ✓ | 4.5 | Agent Sandboxes & Code Execution — sandbox, firecracker | | 1.[Modal](https://appstackbuilder.com/tools/modal) | Free · paid from $250/mo | ✓ | 4.7 | Agent Sandboxes & Code Execution — sandbox, serverless | | 2.[E2B](https://appstackbuilder.com/tools/e2b) | Free · paid from $150/mo | ✓ | 4.6 | Agent Sandboxes & Code Execution — sandbox, agents | ## Top Vercel Sandbox 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)[Vercel Sandbox vs Modal ](https://appstackbuilder.com/compare/modal-vs-vercel-sandbox) ![E2B](https://www.google.com/s2/favicons?domain=e2b.dev&sz=128) ### 2. E2B Free tier4.6· Free · paid from $150/mo E2B is the sandbox layer many agent products and code-interpreter features call when a model writes code that has to actually run. Each sandbox is an isolated microVM that starts in well under a second, with SDKs for Python and JavaScript and filesystem, process and network access. Compute is billed per second on every plan ($0.000014 per vCPU-second, $0.0000045 per GiB-second). Plans change the limits: Hobby is free with $100 of one-time credit, 1-hour sessions and 20 concurrent sandboxes. Pro is $150/month for 24-hour sessions and 100 concurrent sandboxes, with add-ons up to 1,100\. Enterprise starts at $3,000/month and adds bring-your-own-cloud. * ✓Purpose-built for agents, with SDKs designed around tool calls * ✓Fast microVM startup with real isolation * ✓Open-source core [E2B pricing & review ](https://appstackbuilder.com/tools/e2b)[Vercel Sandbox vs E2B ](https://appstackbuilder.com/compare/e2b-vs-vercel-sandbox) ## Frequently Asked Questions What are the best alternatives to Vercel Sandbox in 2026?⌄ The best Vercel Sandbox alternatives in 2026 are Modal, E2B. 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 Vercel Sandbox?⌄ Yes — Modal, E2B offer free tiers, making them strong free Vercel Sandbox alternatives for bootstrapped startups. Why look for a Vercel Sandbox alternative?⌄ A common reason teams switch is requires a vercel account, and pro for serious use. 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 Vercel Sandbox alternative?⌄ Modal is among the most affordable Vercel Sandbox alternatives — free · paid from $250/mo. Check the comparison table above for the full pricing breakdown. Which Vercel Sandbox alternative is rated highest?⌄ Modal is the highest-rated Vercel Sandbox 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/)