AI Code Refactor
Modernise legacy code, improve readability, and catch bad patterns instantly. Powered by DeepSeek AI.
Refactored code will appear here
Paste code on the left and click Refactor
Your code is private
Code is sent securely to DeepSeek for processing and is never stored on our servers. We do not use your code to train AI models.
Frequently Asked Questions
What does AI code refactoring actually do?▼
AI code refactoring analyses your code for issues like poor naming, unnecessary complexity, repeated logic, outdated syntax, potential bugs, and security risks. It rewrites the code to be cleaner, more efficient, and easier to maintain while preserving all original functionality.
Will the refactored code still work the same?▼
Yes — the AI is instructed to preserve all functionality while improving the structure and quality. However, as with any automated refactoring, we recommend running your test suite after applying changes, especially for critical production code.
Which languages are supported?▼
TypeScript, JavaScript, Python, Go, Rust, Java, C#, PHP, Ruby, Swift, Kotlin, and C++. Select your language from the dropdown so the AI applies the correct idioms and best practices for that ecosystem.
What are the focus modes?▼
General applies all improvements. Readability focuses on naming, structure, and comments. Performance targets algorithmic efficiency and memory. Security prioritises safe patterns, input validation, and avoiding known vulnerabilities. Modernize updates deprecated APIs and adopts current language features.
How long can the code be?▼
Up to 20,000 characters (~500–800 lines depending on formatting). For very large files, we recommend refactoring individual functions or classes. You can also upload source files directly via the Upload button.
Is my code stored or used for training?▼
No. Your code is sent securely to DeepSeek's API, processed, and immediately discarded. We never store your code on our servers, and it is not used to train any AI models.