Free Text Diff Checker: Compare Two Texts Online
Compare two texts and see exactly what was added, removed or changed. Your text stays in your browser.
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How to use it
- Paste the original text into the left box and the changed text into the right box.
- Choose side-by-side or inline view, and set the ignore options if needed.
- Review the highlighted changes and the line counts, or copy the result as a plain diff.
Frequently asked questions
How do I compare two texts?
Paste the original text on the left and the changed text on the right. Differences appear instantly below, with changed words highlighted inside each line.
What do the colors mean?
Red marks text that was removed or changed from the original, and green marks text that was added or changed in the new version.
Can I ignore case or spacing differences?
Yes. Turn on Ignore case or Ignore whitespace to hide differences that only come from capital letters or extra spaces.
Is there a size limit?
Each text can have up to 3,000 lines. Very long single lines are compared line by line without word-level highlights.
Is my text uploaded?
No. The comparison runs entirely in your browser and nothing is sent or stored.
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