Text Diff Checker
Compare two texts side by side with color-coded differences. See additions, deletions, and changes highlighted line by line.
Original
Modified
Frequently Asked Questions
›How does the diff checker work?
Paste the original text on the left and the modified text on the right. The tool compares line by line and highlights additions (green), deletions (red), and changes (yellow).
›Can I compare code files?
Yes. The diff checker works with any text including source code, configuration files, JSON, CSV, and plain text. It preserves whitespace and indentation.
›Is there a size limit?
The tool runs in your browser so it can handle large texts, though very large files (10,000+ lines) may slow down the comparison. There's no server-side limit since nothing is uploaded.
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