Compare two texts side by side and see the differences highlighted.
Frequently Asked Questions
The tool compares the original and modified texts line by line. Lines that exist only in the original are marked as removed (red). Lines only in the modified version are marked as added (green). Identical lines are shown without highlighting.
Yes. The diff checker works with any text including source code, configuration files, prose, and structured data. The monospace font makes code comparisons easy to read.
The tool runs entirely in your browser, so practical limits depend on your device. It handles files with thousands of lines without issues on modern hardware.
The current implementation does a line-by-line comparison. Moved lines will appear as both removed from the original position and added at the new position.