Code Diff Tool - High Precision Comparison
Compare code snippets side-by-side or inline with syntax highlighting. Supports JavaScript, Python, Rust, Go, and more with high-resolution line-by-line diffing.
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How to Use
Analyze differences between code versions with industrial precision.
How to compare
- Input Code: Paste your original snippet in the left box and the modified version in the right box.
- Select Mode: Choose Lines for standard code changes, or Chars for deep character-level debugging.
- Toggle View: Use Side-by-Side for visual alignment or Inline for a vertical feed of changes.
- Sync Scroll: Scroll in either window to see the corresponding lines in the other window instantly.
About This Tool
High-Resolution Diffing
Our Code Diff tool uses the robust jsdiff engine combined with highlight.js for syntax awareness. Unlike basic text comparison tools, it correctly handles multi-line tokens, indentation, and trailing whitespace variations.
FAQ
What languages are supported?
Our tool supports most major programming languages including JavaScript, TypeScript, Python, C++, Rust, Go, HTML, CSS, and Bash. It features automatic language detection for quick comparisons.
Is my code shared or stored?
No. All code comparison and syntax highlighting happen entirely within your browser using the local compute resources. Your code never touches our servers.
What is the difference between Line and Character mode?
Line mode identifies changes on a per-line basis, which is standard for source code. Character mode highlights every single changed letter, which is useful for identifying small typos or invisible character differences.