Compare two texts online and see exactly what changed. This free diff checker highlights added, removed and unchanged lines, all right in your browser.
On this page
About this tool
Compare two text versions and inspect added, removed and unchanged lines.
How to use Text Diff Checker
Paste the earlier version into Original text and the revision into Changed text.
Choose Ignore case or Ignore leading/trailing spaces if those differences should be ignored.
Click Compare texts and review the highlighted lines and totals.
Worked example
Compare a two-line draft with a revision containing an extra line to locate the addition.
Does this compare meaning?
No. It compares textual differences rather than the meaning or correctness of the writing.
Will moved lines be recognized as moves?
A moved line may appear as a removal and an addition. Review the surrounding text before interpreting the counts.
Text Diff Checker — Compare two texts line by line and highlight what was added or removed.
Explore Text Tools · More practical guides
Personalize your experience. Open with Ctrl+U (Option+U on Mac). Preferences stay in this browser when storage is available.
Menu language English (USA) Español اردو
Accessibility Profiles Custom settings Vision support Reading support Reduced motion Motor support Focus support
Oversized widget
Screen Reader
Contrast +
Smart Contrast
Highlight Links
Bigger Text
Text Spacing
Pause Animations
Dyslexia Friendly
Cursor
Tooltips
Page Structure
Line Height
Text Align
Dictionary
Saturation
Read aloud assistance Uses browser speech voices to read page text or selected text. This is not a replacement for NVDA, VoiceOver or another full screen reader. Available voices and speech processing depend on your browser and device.
Read page Read selection Pause / resume Stop reading
Reset All Accessibility Settings Move / Hide Widget Widget positionBottom right Bottom left Hide widget for 1 hour Restore at any time with Ctrl+U (Option+U on Mac).
Accessibility statement and help