Category: Text tools
Text Compare
See line-by-line differences between two texts
Paste two versions of a text and see which lines were added and removed, with options to ignore case and surrounding whitespace.
2 added, 2 removed
alpha− beta+ beta updated gamma− delta+ epsilon
Everything on this page is processed in your browser. Nothing is uploaded.
What this tool does
The comparison uses a longest-common-subsequence diff, the same approach version control systems use, so unchanged lines stay aligned and only real edits are highlighted. Handy for reviewing copy changes, configuration files and translated content.
How to use it
- Paste the original text on the left and the changed text on the right.
- Turn on Trim whitespace or Ignore case if formatting noise gets in the way.
- Read the diff below: + marks added lines, − marks removed ones.
Privacy
This tool runs entirely in your browser. Your input is never uploaded, stored or shared — closing the tab removes it.
Frequently asked questions
- Is there a size limit?
- The first 600 lines of each side are compared, which keeps the diff fast on any device.
- Does it compare word by word?
- No, the unit of comparison is a whole line. A line with one changed word shows as one removal plus one addition.