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Text Diff Checker

Compare two blocks of text and see exactly what changed, line by line.

How to use Text Diff Checker

  1. Paste your original text into the left box and the revised version into the right.
  2. Click Compare.
  3. Differences are highlighted line by line so you can see exactly what changed.

Frequently asked questions

What kind of changes does it detect?
Added lines, removed lines, and changed lines are all highlighted separately, similar to how version control tools like Git display a diff.

Can I compare code, not just plain text?
Yes — it works on any plain text, including source code, configuration files, or written documents.

Does it ignore whitespace differences?
There's an option to ignore leading/trailing whitespace and case differences, useful when formatting differences shouldn't count as real changes.

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