Text Diff / Compare
Compare two pieces of text to find differences and similarities.
How to Use Text Diff / Compare
- Paste the original text in the left panel and the modified text in the right panel.
- Click 'Compare' to instantly highlight the differences between the two texts.
- Review the color-coded diff output: green for additions, red for deletions, and unchanged text in the default color.
About Text Diff / Compare
The Text Diff tool lets you compare two pieces of text side-by-side to instantly spot every difference. Whether you're reviewing code changes, comparing document versions, checking translations, or auditing content edits, this tool provides a clear, color-coded visualization of all insertions, deletions, and modifications. It uses the same diff algorithm trusted by professional version control systems like Git. The tool supports character-level and line-level comparison modes, making it suitable for both prose editing and code review. All comparison happens locally in your browser for speed and privacy — your documents never leave your device.
Frequently Asked Questions
How does the diff comparison work?
The tool uses an advanced longest-common-subsequence algorithm (the same one used in Git) to find the minimal set of changes between two texts. It then highlights additions in green and deletions in red for easy visual review.
Can I compare code files?
Yes! The tool works excellently for comparing code snippets, configuration files, or any structured text. It preserves whitespace and indentation, which is critical for code comparison.
Is there a size limit for text comparison?
The tool can handle large texts efficiently, but for optimal performance we recommend texts under 100,000 characters per panel. Since processing is done in your browser, performance depends on your device's capabilities.
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