Universal

Line text comparisonEN

See added, removed, and unchanged lines without sending either version to a server.

Options
Unchanged
0
Added
0
Removed
0

Processing stays in this tab.

Ready.

How to use it

Use the comparison to review revisions in notes, lists, configuration, or other line-oriented text.

  1. Paste the original text on the left and the changed text on the right.
  2. Choose whether case or repeated surrounding whitespace should be ignored for comparison.
  3. Compare the texts and review the unified result with old and new line numbers.

Worked example

Input
Original: alpha\nbeta
Changed: alpha\nbravo
Output
1 1  alpha
2 −  beta
− 2  bravo

Comparison options change only matching keys; displayed lines keep their original spelling.

Method and definitions

  • A line-level Myers shortest-edit-script algorithm finds insertions and deletions.
  • A changed line appears as one removal followed by one addition, so the transformation stays explicit.

Limits and edge cases

  • The result is line based; it does not highlight individual characters inside a line.
  • Each side is limited to 5,000 lines and the combined UTF-8 input to 1 MiB.

Privacy

All input and output stays in this tab. Rigula does not upload, store, or include it in a share URL.