Text Diff Checker

Compare two texts side by side. See exactly what was added, removed, or changed — line by line.

Original Text

Changed Text

Enter text in both boxes and click Compare Texts to see the differences.

What Is a Text Diff Checker?

A text diff checker compares two blocks of text and highlights the differences line by line. It's the online equivalent of the diff command in Unix, but visual and easy to use — no command line needed.

Common Use Cases

Writers & Editors — Compare draft revisions to see exactly what changed between versions.
Developers — Check code changes, compare config files, or review patch diffs.
Students — Compare essay drafts to track revisions and improvements.
Legal & Business — Compare contract versions to spot modifications.
Content Managers — Verify that copy updates were applied correctly.

Why Use Our Diff Checker?

100% Free — No signup, no limits, no ads in the tool area.
Instant Comparison — Results appear immediately after clicking Compare.
Visual Highlights — Green for additions, red for removals. Clear and intuitive.
Privacy First — All comparison happens in your browser. Your text never leaves your device.
Line Numbers — See exactly which lines changed, with original line numbers preserved.