Code Diff
Compare two code snippets and highlight differences with syntax-aware line-by-line diff.
Paste original and modified code above, then compute the diff to see line-by-line changes.
A generic text diff treats every line the same way, whitespace, indentation, a stray semicolon, all flagged with equal weight, which buries an actual logic change under formatting noise when comparing two versions of a function rather than two paragraphs of prose. This tool compares two code snippets specifically, highlighting differences with syntax-aware, line-by-line detail that understands it's looking at code rather than plain text.
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Useful for reviewing what actually changed between two versions of a function before merging, comparing a snippet from documentation against the version actually running in production, or spotting a subtle change buried in a large pasted block of code that would be easy to miss reading line by line manually.
Key features
- Clean interface
- Fast processing
- No signup required
- Works offline