Free Diff Checker Online

Compare two texts side by side and see differences highlighted line by line. Find additions, deletions, and unchanged lines instantly.

Original

Modified

How to Use

Paste your original text on the left.

Paste the modified text on the right.

Differences are highlighted automatically below.

Green = added, Red = removed, No color = unchanged.

Features

Line-by-line diff comparison using LCS algorithm

Color-coded output: green for additions, red for deletions

Real-time diff as you type

Statistics for added, removed, and unchanged lines

100% client-side — your code stays private

FAQ

Compare two texts and find differences instantly with this free Diff Checker. Highlights additions and deletions line by line, just like Git diff. Perfect for comparing code versions, config files, SQL queries, and any text content.

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