Free AI Code Fixer

Paste in code that's broken, throwing errors, or just not working, optionally add the error message or traceback you're seeing, and click Fix Code. The AI diagnoses the problem and returns the complete, corrected version of your code along with a plain-English summary of what it changed. No signup required.

Our code fixer supports over 50 programming languages including Python, JavaScript, TypeScript, Java, C++, C#, Go, Rust, Ruby, PHP, Swift, Kotlin, R, Lua, and many more.

Yes. You can use the free code fixer without creating an account for up to 5 fixes per day. For more daily uses and higher input limits, sign in for free. Every account gets 5 free credits with support for up to 25,000 characters of input code per tool use.

It's optional, but recommended. If you have an error message or traceback from running the code, pasting it into the "Error message / traceback" box helps the AI pinpoint the exact cause instead of guessing, which usually produces a more accurate fix.

The Code Checker is diagnostic-first: it gives you a list of issues (bugs, performance, style) to read through, with the corrected code as a secondary section. The Code Fixer is solution-first: it leads with the complete working code (shown as a diff against your original) and only briefly explains what changed afterwards. Use the Fixer when you just want broken code to work; use the Checker when you want a fuller review. Try the Code Checker

No. You can use the free code fixer without signing up or creating an account for up to 5 fixes per day. Just paste your broken code, select the language, and click Fix Code. Sign in for free to get 5 free credits with higher limits.

Yes! CodeConvert AI offers a full suite of free tools. You can convert code between 50+ languages with the Code Converter, generate code from plain-English descriptions with the Code Generator, or get step-by-step explanations with the Code Explainer. Try the Code Explainer

Signing in unlocks CodeConvert AI's Pro tool, which includes more powerful AI models, an integrated chat assistant, code execution, personal notes, conversion history, and an enhanced interface. Every account gets 5 free credits with support for up to 25,000 characters of input code per tool use. No credit card required.