Diff Checker
Paste two texts and see every difference highlighted instantly - line by line and character by character. Works for code, prose, config files, anything. Side-by-side or unified view. Nothing leaves your browser.
Char-level diff
In-browser
Free
Original
Modified
0 added
0 removed
0 changed
0 equal
Original
Modified
Character-level precision
Changed lines are diffed character by character, so you see exactly what word or symbol changed - not just the whole line.
Two views
Side-by-side for easy visual scanning. Unified for a compact git-style patch view.
100% private
Diff runs entirely in your browser. Your text never leaves your machine.