Diff Checker

BotixTech's free diff checker compares two pieces of text and highlights every difference line by line. Perfect for checking document revisions, comparing code versions, or spotting what changed between drafts.

Paste the original on the left and the new version on the right. Our text compare tool marks additions in green and removals in red - instantly, with no signup.

How to Compare Two Texts

Paste the original text in the left box.
Paste the modified text in the right box.
Click Compare - differences are highlighted line by line below.

Diff Checker Features

Line-by-line diff - clear green/red highlighting.
Instant - comparison runs in your browser.
Private - your texts never leave your device.
Free - no account, unlimited comparisons.

Frequently Asked Questions

What is a diff checker?

A diff tool compares two texts and shows exactly what was added, removed or changed between them, usually with color highlighting.

How do I compare two documents?

Copy the text of each document into the two boxes and click Compare. Changed lines are highlighted so you can scan them quickly.

Is my text uploaded?

No. The comparison runs completely in your browser, so sensitive documents stay private.

Can I compare code files?

Yes. Paste the code from each version and the diff checker will highlight every changed line.