Text Diff

Paste two texts and see a line-by-line diff with color highlighting.

How to use

  1. 1. Paste the original text on the left (A) and the revised text on the right (B).
  2. 2. Check the line-by-line differences in the comparison result below.
  3. 3. Green = lines only in B (added), red = lines only in A (removed), yellow = lines that changed.

Comparison result

Added Removed Changed

Enter text on both sides to see the result.

About this tool

Text Diff compares two texts line by line to highlight inserts, deletes, and changes.

CRLF vs LF can make an entire contract look changed. Normalize newlines first and decide whether pure whitespace diffs matter.

Tip — Unify CRLF/LF first so line-ending noise does not look like real edits.

FAQ

Word-level diff?

Often line-based; long lines may hide in-line edits.

Left vs right?

Treat left as original and right as revised unless the legend says otherwise.

Very long documents?

Performance may drop—diff only the changed sections when possible.

Are files uploaded to a server?

No. Every tool runs entirely in your browser. Files and text you enter are never sent to our servers.