AI Code Debugger
Paste broken code and an error message — AI finds every bug and returns a fully fixed version. Powered by DeepSeek AI.
Fixed code will appear here
Paste broken code and click Debug
Your code is private
Code is sent securely to DeepSeek for processing and is never stored on our servers.
Frequently Asked Questions
What types of bugs can the AI find?▼
The debugger looks for logic errors, runtime exceptions, type mismatches, null/undefined dereferences, off-by-one errors, security vulnerabilities (injection, insecure patterns), performance anti-patterns, and syntax issues. It categorises each bug by type and severity.
Should I paste the error message too?▼
Yes — pasting the error message or stack trace significantly improves accuracy. The AI uses the error to focus on the specific failure point instead of doing a general scan.
Will the fixed code preserve my logic exactly?▼
Yes. The AI is instructed to fix bugs while preserving all original logic and functionality. It will not refactor or restructure your code beyond what's needed to fix the identified issues.
What languages are supported?▼
TypeScript, JavaScript, Python, Go, Rust, Java, C#, PHP, Ruby, Swift, Kotlin, and C++.
Is there a code length limit?▼
Up to 20,000 characters. For larger files, debug individual functions or classes for best results.