Text Diff Checker

Compare two texts side-by-side and highlight added, removed, and unchanged lines.

How to use the Text Diff Checker

  1. Paste the original text on the left and the modified text on the right.
  2. Click Compare to see a line-by-line diff.
  3. Lines in green were added; lines in red were removed; unchanged lines appear in grey.

The comparison is line-by-line. Leading and trailing whitespace on each line is preserved.