Free OnlineUtility Tools
Diff Viewer
Compare two text blocks and see differences highlighted. Side-by-side or inline diff view.
diff viewertext comparediff toolcompare texttext difference
Key Features — Diff Viewer
Side-by-side and inline views
Line and word-level diffing
Color-coded changes
Line numbers
Copy diff output
Why Use This Tool — Diff Viewer
Free Online Diff viewerText compare — for EveryoneFast & Easy Diff toolCompare text — 100% FreeFree Online Text difference
Privacy First
All processing happens in your browser. Your data never leaves your device.
Lightning Fast
Get instant results with zero wait time. No server delays, no loading screens.
Works Everywhere
Use on any device — desktop, tablet, or phone. No downloads or plugins needed.
Frequently Asked Questions — Diff Viewer
Side-by-side vs inline?
Side-by-side shows two columns. Inline shows a single stream with deletions in red and additions in green.
Handles large files?
Yes. Efficiently handles thousands of lines.
Works with code?
Yes. Preserves whitespace and indentation.