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Text Compare / Diff Checker

Compare two blocks of text and instantly see what was added, removed, or changed — line by line or word by word.

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How to use

  1. 1Paste your original text into the left box
  2. 2Paste the revised text into the right box
  3. 3Differences are highlighted automatically — added lines in green, removed lines in red.
  4. 4Use the Swap button to flip the two boxes if needed, or Clear to reset both.
  5. 5Toggle between line view and word view to see changes at different levels of detail

Why use this tool?

Spotting changes between two versions of a documents, code snippets, or edited drafts by eye is slow, tedious, unreliable and error-prone. This tool highlights every addition, deletion, and change automatically, making it easy to spot exactly what changed between two versions of text, making it fast to review changes, catch regressions, or verify edits — all without leaving the browser.

Frequently asked questions