Does it compare line-by-line or character-by-character?

It compares line-by-line by default, highlighting the specific characters that differ within each changed line.

Can I compare large texts?

Yes. The diff algorithm handles large texts efficiently in your browser.

Text Diff Checker

Paste two texts and instantly see their differences highlighted. Additions are shown in green, deletions in red. Perfect for comparing code versions, document revisions, or any two pieces of text.

Free · No limits · Runs in your browser

How to use

1Paste the original text in the left panel.
2Paste the modified text in the right panel.
3View highlighted differences between the two texts.
4Use the diff to identify changes, additions, and deletions.

Frequently asked questions

Does it compare line-by-line or character-by-character?: It compares line-by-line by default, highlighting the specific characters that differ within each changed line.
Can I compare large texts?: Yes. The diff algorithm handles large texts efficiently in your browser.