Free Code Diff Tool - Compare Code with Syntax Highlighting
Compare code with syntax highlighting. Supports JavaScript, Python, TypeScript, Go, and 20+ languages.
Paste code in both panels above to compare differences with syntax highlighting
Supports 20+ programming languages including JavaScript, TypeScript, Python, Go, Rust
How to Use Free Code Diff Tool - Compare Code with Syntax Highlighting
Paste code in both panels and select your programming language. The tool compares line by line, highlighting additions, deletions, and modifications with syntax highlighting. Export as a standard patch file or copy to clipboard.
🔒 Privacy First: This tool runs entirely in your browser. Your data never leaves your computer.
Common Use Cases
- Review code changes before pull requests
- Compare different versions of a script
- Debug production vs development code differences
- Create patch files for code distribution
- Learn from code refactoring examples
Free Code Diff Tool - Compare Code with Syntax Highlighting FAQ
The tool supports 20+ languages including JavaScript, TypeScript, Python, Java, Go, Rust, C++, PHP, Ruby, Swift, Kotlin, HTML, CSS, SQL, and more.
The diff view includes syntax highlighting for keywords, strings, numbers, and comments based on the selected language, making code easier to read.
Yes! You can copy the diff to clipboard or download it as a patch file (.patch) that can be applied using git apply or similar tools.
Choose between Split view (side-by-side comparison) or Unified view (inline diff like git diff output). Both modes support line numbers.