Text Diff & Compare Tool
Compare two texts and highlight differences
How to Use Text Diff & Compare Tool
- 1Paste the original text in the left textarea.
- 2Paste the modified text in the right textarea.
- 3Click Compare to see the differences.
- 4Added lines appear in green, removed lines in red.
About Text Diff & Compare Tool
Compare two blocks of text and see the differences highlighted line by line. Added lines are shown in green, removed lines in red, and unchanged lines in their original form. Useful for comparing code versions, configuration files, or any text documents.
Frequently Asked Questions
How does the diff algorithm work?
The tool compares text line by line. Lines present only in the original are marked as removed (red), lines present only in the modified text are marked as added (green), and matching lines are shown as unchanged.
Can I compare code files?
Yes. This tool works with any plain text including source code, configuration files, CSV data, and prose. The line-by-line comparison preserves whitespace.
Is there a size limit?
The tool handles texts of reasonable size (up to several thousand lines). For very large files, performance depends on your browser and device.