Text Diff
Compare two texts and mark unchanged, added, and removed lines or words.
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How to use
Paste the original text first and the revised text second. Choose line comparison for documents or word comparison for small edits, then run the diff.
Example
Input
Tea
Coffee
Output
Tea
- Coffee
+ Cocoa
Limitations
This is an exact textual comparison, not a semantic comparison. Very large word-level comparison matrices are rejected to keep processing bounded.
Frequently Asked Questions
Does Text Diff change either input?
No. Both inputs remain untouched; the result only describes their differences.
When should I use word mode?
Use word mode for short prose edits. Line mode is clearer and more efficient for files and long documents.