Paste two versions — additions, deletions, and changes highlighted instantly. Side-by-side or inline view. Perfect for editing, AI rewrites, and version tracking.
A text-compare (or "diff") tool shows you exactly what changed between two versions of text. Word added in green, word removed in red, common text in grey. The same technology that powers Git for code, applied to plain prose.
Writers use it to track editor revisions. Lawyers use it to spot contract changes. Students use it to check what a proofreader actually changed. AI users use it to see what the Humanizer or Paraphraser modified. Translators use it to compare two translations.
Yes, 100% free, no signup. Runs in your browser — text never sent to a server.
Inline: changes shown in a single column with green-additions and red-deletions interleaved. Side-by-side: original left, new right, scrolls synchronized, changes highlighted in both.
Word-level: shows whole words added/removed/changed. Best for prose. Character-level: shows letter-by-letter differences. Useful for typos and small spelling fixes. Line-level: treats each newline as a unit. Best for code, lists, or structured text.
Comparisons up to ~50,000 words run in under a second. Longer texts work but slow down browser-side rendering.
Any language. Word-level diff splits on whitespace; works for English, Hindi, Spanish, Chinese, Arabic, etc.
Yes. The tool runs in your browser. Text never sent to TextSight servers unless you opt-in to score it for authenticity (then sent to detector API for that one check, no storage).
3 free scans/day with TextSight Detector — confirm the rewrite reads human.