Compare Text

See exactly what changed between two versions.

Local processing
Preparing local processing tools…
Files are processed only in your browser and released when you close the page.

How to use

  1. 1

    Paste the original and updated text.

  2. 2

    Compare additions, removals and unchanged content.

  3. 3

    Copy or download the comparison.

Up to 100,000 characters and 5,000 lines per side. Comparison runs in a Web Worker with an 8-second timeout and cancellation.

Frequently asked questions

Will my code be uploaded?

No. Comparison runs in a browser Worker. Text is not sent to the server, feedback or analytics.

Is this suitable for large files?

The first release targets small and medium texts. Character and line limits reject oversized inputs. Extreme comparisons can be canceled to avoid long stalls.