FREE ONLINE TOOL / WRITING
Text Difference Checker
Compare two texts line by line. Highlight what was added or removed and copy the result.
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ABOUT THIS TOOL
How it works.
Paste two versions of a document to see added and removed lines. The comparison runs in the browser, so drafts are not transmitted. Each side supports up to 600 lines to keep the interface responsive.
Your input is handled locally in your browser by this tool. Results may vary by device and browser.
Compare two versions of your writing
Paste an older version on the left and the revised version on the right, then select Compare. Green rows are additions, red rows are removals, and unchanged lines remain neutral. You can copy the result.
Does this compare characters too?
No. This tool compares whole lines. Editing one character in a line makes the previous line appear removed and the new line appear added.