Text Compare
Compare two blocks of text line by line and see exactly what changed.
Compare two texts line by line
Paste an original version into the first box and a revised version into the second, and this diff checker shows you exactly what changed: unchanged lines, lines removed from the original, and lines added in the new version. Use it to compare two drafts, check what changed in a config file, or spot the difference between two similar lists.
Loosen the comparison when you need to
Ignore case treats lines that differ only in capitalization as the same. Ignore extra whitespace skips spacing-only differences, so a changed indent or an extra space is not flagged as a real edit.
How to compare text online
Paste the original on the left and the updated text on the right. The comparison updates automatically, with removed lines struck through and added lines highlighted.
Frequently asked questions
Does it compare word by word or line by line?
Line by line. If one line changes in the middle, the whole old line shows as removed and the new one as added.
Can I compare code with this?
Yes, it works on any plain text including code. For very large files, a dedicated code diff tool with syntax colouring may be easier to read.