Compare Two Text Files Online
Paste two versions of a text file and instantly see what was added, removed, or changed. Switch between unified and side-by-side views with word-level highlighting. Everything runs in your browser - your files never leave your device.
Developer
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Text Diff Checker
Compare two texts and see the differences highlighted
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Quick Start
- 1Paste the first file into the Original panel
- 2Paste the second file into the Modified panel
- 3Click Compare to highlight every difference
- 4Toggle side-by-side view or export the diff as a .patch file
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Looking for FAQs and advanced options? Visit the full Text Diff Checker page →