🔀 Text Diff Checker

Compare two blocks of text and instantly see what changed, line by line, in unified or side-by-side view.

Original

Changed

How to Use This Text Diff Checker

Paste your original text on the left and the changed version on the right — differences highlight automatically as you type. Switch between Unified (one column with +/− markers) and Side by Side views depending on how you like to review changes.

Use Swap to compare the two texts in the opposite direction, and Copy Diff to grab the result as plain text with +/− prefixes. Handy for comparing edits to an article, checking what changed between two versions of a config file, or reviewing a contract redline.