Text Formatting · No. 23
Compare two texts and highlight additions, deletions and changes line by line or word by word.
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Text Formatting
How it works
Everything runs in your browser, so results appear the moment you type.
Paste your original text or first list into the left box.
Paste the changed text or second list into the right box.
Changes and totals update as you type. Adjust the options to refine them.
About this tool
The diff checker uses the Myers algorithm, the same approach behind Git, to find the smallest set of changes between two versions. Compare by line, word or character and ignore case or whitespace if needed.
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FAQ
No. Both versions are compared in your browser. Nothing is sent to a server.
Yes. It is completely free with no sign up, no usage limits and no API keys. Every Content Refiner tool runs in your browser.
Yes. Your text is processed on your own device and is never uploaded, stored or shared. Once the page has loaded, the tool even works offline.
Yes. The Text Compare / Diff Checker works in any modern browser on phones, tablets and computers.
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