Word counter
Count words, characters, sentences, and reading time online with a fast free word counter.
Diff checker / compare text
Compare two texts and highlight the differences line by line and word by word. Find added, removed, and changed text privately in your browser.
How to use Diff checker / compare text
Paste an original and a changed version of any text to see exactly what changed. Removed lines are highlighted in red, added lines in green, and changed words are marked inside each line.
Options
- Side by side or unified view
- Ignore letter case or leading/trailing whitespace
- Summary of lines added, removed, and unchanged
Works for documents, code, config files, and lists. The comparison runs entirely in your browser, so confidential text is never uploaded.
Diff checker / compare text FAQs
Is Diff checker / compare text free?
Diff checker / compare text is a free online tool on ReallyUseful.Tools. No account is required.
Does Diff checker / compare text run in my browser?
Diff checker / compare text is designed to run in your browser where supported, so files can stay on your device instead of being uploaded to a server.
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