Text Tools
Word Counter
Count words, characters, sentences, paragraphs, and reading time for essays, articles, and social posts.
Trending569 users/month
Standalone
Diff any two pieces of text with line-by-line, word-by-word, and character-level highlights. Ideal for proofreading drafts, comparing contract revisions, debugging configs, and reviewing translations. Privacy-first: everything runs locally.
DEV-TOP · horizontalText
Compare two pieces of text line-by-line. Added lines green, removed red.
Original
Changed
DEV-MID · rectangleBuilt for everyday work
Text Diff Checker runs entirely in your browser — files never leave your device.
No signup, no upload queue, no captcha. Use Text Diff Checker and move on with your day.
Mobile, tablet, desktop, and offline (PWA). Install once, use everywhere.
No premium tier, no per-use fees. Optional ads keep the lights on; you keep the tool.
Getting started
Text Diff Checker loads instantly on this page — no download or signup. Once it ships, it'll run entirely inside your browser.
Type, paste, or upload what you need. Compare two text blocks side-by-side and highlight added, removed, and changed lines instantly.
Use the result right away, copy it to your clipboard, or bookmark this page so you can come back without searching.
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DEV-BOTTOM · horizontalFrequently asked
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