Compare two texts and highlight the differences
Paste two versions of a document, code or list. Changes are highlighted line by line, with the exact changed words marked inside each line.
- ✓ No upload
- ✓ No sign-up
- ✓ No watermark
- ✓ Free
How to use
- Paste the original text on the left and the changed text on the right (or drop .txt, .md, code files).
- Pick side-by-side or inline view, and whether to ignore case or whitespace.
- Read the highlighted result: red was removed, green was added.
FAQ
Can I compare files?
Yes. Drop any text-based file (txt, md, csv, json, code) on either box. Word and PDF files must be copied as text first.
Is there a size limit?
No fixed limit. Texts with tens of thousands of lines work; very large inputs take a few seconds because everything runs on your device.
Does it work for Chinese?
Yes. Word mode splits Chinese text into characters so changes are highlighted precisely.
Is my text sent anywhere?
No. The comparison runs in your browser; nothing is uploaded or stored.
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