About CodeSandbox
CodeSandbox is a cloud development platform where you can write, run and share code in isolated environments. It is used for prototypes, teaching, testing and running code that you do not fully trust.
What it does
Each sandbox is a small virtual machine that starts quickly and can be saved, forked or hibernated. You can open a project in the browser, invite others to edit it and keep its state between sessions. The company also offers an SDK and APIs for creating sandboxes from your own product or AI agent.
Key features
- Browser-based development environments
- Isolated sandboxes for untrusted code
- Snapshots and resume after inactivity
- SDK and APIs for programmatic sandboxes
- Templates for common stacks
Who it's for
Developers building prototypes, educators who need a sandbox per student, and AI product teams that run code on behalf of users. Testing teams can also use sandboxes for CI tasks.
Pricing and good to know
There is a free tier, and paid plans add more compute, collaboration and sandbox capacity. Limits and prices change, so check the pricing page before you plan a larger project. The company now operates as part of Together AI, so product direction may shift over time. Keep sensitive data out of shared sandboxes unless your plan covers it.
Highlights
- Browser-based development environments
- Isolated sandboxes for untrusted code
- Save and resume sandbox state
- SDK and APIs for programmatic sandboxes
