Text Diff Checker - Compare Text Differences Online Free

Free online text diff checker. Compare two texts and find differences instantly. Perfect for developers, writers, and editors.

How to Use the Text Diff Checker

Paste original text in the left box
Paste changed text in the right box
See differences highlighted — added, removed, and unchanged text

All processing happens in your browser. Nothing is uploaded.

Features

Side-by-side comparison — see both versions at once
Color-coded diff — green for additions, red for removals
Inline diff — character-level difference detection
100% private — everything runs in your browser