Text Diff Checker
Paste two versions of any text to see line-by-line additions and removals highlighted instantly side by side, with change counts and a copyable summary.
Free, no signup needed. Runs 100% in your browser.
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How to use this tool
- Paste the original text on the left.
- Paste the revised text on the right.
- Review highlights and copy the summary.
Frequently asked questions
How does the comparison work?
It aligns matching lines and marks the rest as added or removed, so edits are easy to spot.
Is there a size limit?
Yes. Each side is limited to 2,000 lines to keep the comparison fast in your browser.
Is it free?
Yes, free with no signup.
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