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CodeSandbox Developer Tools

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CodeSandbox (Developer Tools): CodeSandbox provides instant cloud development environments to run code at scale for AI agents, CI/CD, and secure interpretation. Pricing: Start for free. (data verified July 2026)

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About CodeSandbox

What is CodeSandbox?

CodeSandbox is a platform that spins up isolated, cloud-based development environments (sandboxes) for instant code execution. It solves the problem of securely running untrusted code and managing development environments at scale, without the overhead of local setup or virtual machine management.

Who is it for?

CodeSandbox is built for developers, AI engineers, and teams that need to run code in AI agents, CI/CD pipelines, or educational settings. It is ideal for those who want to provision, manage, and decommission millions of concurrent VMs programmatically. It is not designed for non-developers or simple website hosting.

Key use cases

Use CodeSandbox to give AI agents sandboxes for resolving user prompts, run autonomous agents in parallel, or perform secure code interpretation and evals. It also supports creating dev environments for each developer or student, running CI/CD tests, and forking environments for A/B testing.

Key features

  • Secure & isolated environments — Run untrusted code safely without affecting your system, with each sandbox running in total isolation.
  • Ready for scale — Handle millions of concurrent VMs, with easy provisioning, management, and decommissioning.
  • Continuous context — Resume development within the same sandbox after inactivity, with no loss thanks to snapshots.
  • Quick start & auto resume — Spin up entire VMs, clone them, and restore snapshots within 2 seconds using microVM infrastructure.
  • Customizable hibernation — Gain total control over periods of inactivity before auto hibernation kicks in.
  • Powerful APIs — Use APIs to create isolated development environments that can run any type of code you need.

SaaSpartout Score

7.7 /10
Ease of use 7.0
Features depth 8.5
Value for money 8.5
Support quality 6.5
Integrations 7.5
Scalability 9.0
Documentation 7.0
Onboarding speed 7.5

Editorial score from our review methodology — not user ratings.

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CodeSandbox Pricing

CodeSandbox pricing: Start for free. Billing model: Free.

Free Plan

Start for free — get instant access to sandboxes for code execution and AI agents. Usage limits apply; upgrade for scale.

Pro Plan

Paid tier for teams and production use — includes priority support, higher concurrency limits, and advanced hibernation controls. Exact pricing available on request.

Note: CodeSandbox is now part of Together AI; the CodeSandbox SDK brings code interpretation to generative AI. Start for free.

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Frequently asked questions

Is CodeSandbox free?
Yes, CodeSandbox offers a free plan that allows you to start using sandboxes for code execution and AI agents immediately.
How much does CodeSandbox cost?
CodeSandbox has a free tier and a paid Pro plan for larger scale. Exact pricing details are not publicly listed on the pricing page; contact CodeSandbox or Together AI for Pro pricing.
What is CodeSandbox used for?
CodeSandbox is used to create isolated development environments for running code in AI agents, CI/CD pipelines, secure code interpretation, and parallel dev environments for teams or students.
Who is CodeSandbox best for?
It is best for AI engineers, developers, and teams needing to run untrusted code securely, manage many concurrent VMs, or integrate code execution into AI agents and workflows.
What are the top alternatives to CodeSandbox?
Alternatives include GitHub Codespaces, Gitpod, Replit, and Docker-based environments. CodeSandbox differentiates with its focus on AI agents and microVM infrastructure.
Can CodeSandbox run untrusted code safely?
Yes, every environment runs in isolation, so you can safely run untrusted code without it affecting your system.

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