Text Compare (Diff) Tool

Spot every change between two versions of a document, contract, blog post or piece of code. Additions are highlighted in green and deletions in red.

  • Free to use
  • No sign-up needed
  • Works on phone and desktop

Private by design: everything happens in your browser. Nothing you enter is sent to our server.

How to compare two texts

  1. Paste the original text on the left and the changed text on the right.
  2. Choose to compare by words, lines or characters.
  3. Pick the combined view or side by side.
  4. Use the options to ignore capitals or extra spaces.

When it’s useful

  • Contracts and policies: check exactly what changed between drafts.
  • Editing: see what an editor or AI tool changed in your writing.
  • Code and config: compare by lines to find the changed lines quickly.
  • SEO updates: track changes to page copy over time.

Frequently asked questions

Is my text uploaded anywhere?

No. The comparison runs entirely in your browser.

Which mode should I use?

Words for prose, lines for code or lists, and characters for spotting small typos.

Can it compare Word or PDF files?

Copy and paste the text from the files into the two boxes.

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