Text & File Comparator

Compare two texts or files (.txt, .md, .json, .csv) by lines, words, characters, or formatted JSON, with a side-by-side view or changes only, and export a real unified diff. Segments are rendered as React nodes, never as HTML built from the compared content.

Processed on your device, no AIhasta 200.000 caracteres por texto

or upload file A

or upload file B

The data is processed on your device and is never sent to the server.

Use cases

How to use this tool

  1. Paste or upload texts A and B
  2. Choose the comparison mode
  3. Check the changes and download the diff

Frequently asked questions

Does it guarantee a perfect semantic comparison?
No. It compares the literal text according to the chosen mode (lines, words, characters, or formatted JSON); it doesn't interpret the meaning of the content.
Is there a size limit for the comparison?
Yes. Each text is limited to 200,000 characters (or 20,000 for character mode) to avoid blocking the browser with the comparison algorithm.

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