Text Diff
Compare two plain-text versions locally and read added, removed, and unchanged lines.
Your text stays in this browser. Compare up to 256 KiB and 10,000 lines per side; widespread changes are refused.
Paste two versions, then compare them.
How to use this tool
Paste the original and changed text, then compare one revision at a time. Use the ignore options only when that noise is genuinely irrelevant.
When not to use it
A text diff cannot prove an edit is correct, safely merge changes, or replace version control for source files.
Read the guide →