Text Diff Checker

Paste two texts and compare them line by line. Differences are highlighted.

How to Use the Text Diff Checker

Paste the original text in the left box and the modified text in the right box, then click Compare. Differences are highlighted line by line — additions in green and deletions in red. The tool performs character-level diff analysis for precise comparison.

Frequently Asked Questions

How accurate is the diff comparison?

The tool uses a robust line-diff algorithm that accurately identifies additions, deletions, and modifications at both line and character level.

Is there a text size limit?

The tool handles texts up to several hundred thousand characters comfortably in modern browsers.