About the Handiwork Diff Checker
The Diff Checker compares two blocks of text and highlights exactly what changed — added lines, removed lines, and lines that stayed the same. It is perfect for reviewing code edits, spotting changes between document versions, or comparing configuration files.
How to use the Handiwork Diff Checker
- Paste the original text on one side.
- Paste the changed text on the other side.
- Review the highlighted additions, removals, and unchanged lines.
How a line diff works
The tool compares the two inputs line by line and marks each line as added, removed, or unchanged. This is the same idea behind version-control diffs, making it easy to see the impact of an edit at a glance instead of re-reading everything.
Everyday uses
Compare two versions of a contract or article, double-check what changed in a code snippet before pasting it, verify environment config files match across servers, or confirm that a copy-paste preserved every line.
Frequently asked questions
What do the colors mean?
Added lines, removed lines, and unchanged lines are each highlighted differently so you can immediately see what changed between the two versions.
Is my text kept private?
Yes. The comparison runs in your browser, so the text you paste is never uploaded.