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AI Developer Tool

AI Bug Fixer & Code Checker

Paste any code and get an instant AI review: bugs found, explained in plain language, plus a corrected version ready to copy.

Any LanguageInstant Fixes100% Free

Paste Your Code

15 free checks per day.

Bugs Found

Paste your code on the left and click "Find & Fix Bugs" to see the report here.

Fixed Code

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About this AI Bug Fixer

Stuck on a bug you can't spot? Paste your code and this tool reviews it for logic errors, typos, security issues, and bad practices, then rewrites it with the fixes applied -- explained in plain language so you actually learn what went wrong, not just get a black-box answer.

Frequently Asked Questions

What kind of code can this bug fixer check?

Any programming language -- JavaScript, Python, HTML/CSS, Java, C++, and more. The AI auto-detects the language and reviews it accordingly.

Is this bug fixer free?

Yes, it's completely free with no signup, using the same daily message allowance as our AI Coding Agent.

Will it always find a bug even if my code is correct?

No. If the AI doesn't find any issues, it will clearly say your code looks correct instead of inventing a problem.

About this tool

Paste any code snippet and this AI-powered checker scans it for bugs, logic errors and common security issues, then returns a corrected version with an explanation of what was fixed.

How to use this tool

  1. Paste your code into the input box (any common language is supported).
  2. Click Analyze & Fix to run the AI check.
  3. Review the corrected code and the explanation of what was changed.
  4. Copy the fixed code back into your project.

Additional FAQs

Which programming languages are supported?

Most popular languages including JavaScript, Python, Java, C++, PHP and HTML/CSS are supported.