Text Diff — Compare Text and Code Online
Compare two texts side by side or in a unified view, with line and character differences and Chinese support.
Processed locally in your browser. Nothing is uploaded.
How to use
- Paste or import two texts.
- Select comparison options and layout.
- Copy a summary or download the diff.
Example and rules
Example: compare “version 1” with “version 2” to inspect the changed number.
- Up to 1 MiB and 10,000 lines per side, UTF-8.
- Line endings are normalized; case and whitespace matter by default.
- Changed lines over 2,000 characters use line-level differences only.
Frequently asked questions
What happens for identical content?
The result says there are no differences.
Can I compare empty text?
Yes, empty text is valid.
Is HTML executed?
No. Inputs and outputs are displayed as plain text.