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CodeSandbox

Freemium💻 AI Coding

Cloud development platform and microVM sandboxes, acquired by Together AI in Dec 2024 and repositioned as infrastructure for secure…. It helps you write, review and ship code faster. Free to start, with paid upgrades.

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What is CodeSandbox?

Cloud development platform and microVM sandboxes, acquired by Together AI in Dec 2024 and repositioned as infrastructure for secure AI-generated code execution. Boxy AI assistant on Pro from $12/mo.

Key features

Works inside your editor or terminal
Understands your whole codebase
Reviews and explains code
Speeds up debugging and testing

Pricing

CodeSandbox is Freemium — you can start free and upgrade when you need more. Paid plans start at $12/mo. Pricing can change, so confirm on the official site before buying.

Pros & cons

✅ Free tier to try before paying
✅ Faster coding and reviews
✅ Understands real codebases
⚠️ Best features need a paid plan
⚠️ Free tier has usage limits
⚠️ Occasional slowdowns at peak times

Best CodeSandbox alternatives

Not sure CodeSandbox is right for you? Here are the closest alternatives in ai coding:

GitHub CopilotAI pair programmerPaid → CursorAI-first code editorFreemium → WindsurfAgentic coding assistantFreemium → ReplitCode and deploy in your browserFreemium →

FAQs

Is CodeSandbox free?

CodeSandbox is freemium — you can start free and upgrade to a paid plan when you need more.

What is CodeSandbox used for?

CodeSandbox is used for ai coding — cloud development platform and microVM sandboxes, acquired by Together AI in Dec 2024 and repositioned as infrastructure for secure…

What are the best alternatives to CodeSandbox?

Popular alternatives include GitHub Copilot, Cursor, Windsurf. Compare them above to find your fit.