./text-diff-checker
Free Text Diff Checker Online
Compare two texts side by side and highlight exactly what changed. Toggle between line-based and word-based diffs for the right level of detail.
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// enter text on both sides to see differencesHow to Use
- 01Paste the original text on the left.
- 02Paste the changed text on the right.
- 03Switch between Line and Word mode to see additions (green) and deletions (red).
FAQ
When should I use line vs word diff?▼
Use line diff for code or structured text. Use word diff for prose, articles, or documents where individual word changes matter.
Is the text sent to a server?▼
No. The diff is computed entirely in your browser using a well-tested open-source algorithm.
Is there a size limit?▼
No hard limit, but very large texts (hundreds of thousands of lines) may slow down the browser.