Text Compare (Diff Checker)
Compare two texts online and highlight added and removed words, lines or characters.
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Runs entirely in your browser. Your files and text are never uploaded to our server.
- Instant results
- 100% free
- No sign-up
- Private
Compare two texts online and see exactly what changed. Text Compare highlights added and removed words, lines or characters, inline or side by side. It is free, needs no sign-up, and the comparison runs in your browser.
More about Text Compare (Diff Checker)How to use, good to know & FAQ
How to use Text Compare
- Paste the original text in the left box and the changed text in the right box.
- Choose Compare by: Lines, Words or Characters, and pick an Inline or Side by side view.
- Optional: tick Ignore upper/lower case, Ignore whitespace differences or Ignore spaces at line ends.
- Click Compare. Added text is green, removed text is red, and a summary counts what was added, removed and unchanged.
- Use Copy diff or Download diff to keep the result.
Frequently asked questions
Is my text saved or uploaded?
No. The comparison runs in your browser and the text is not sent to our server.
Can I compare two texts word by word?
Yes. Choose Words in Compare by. You can also compare line by line or character by character.
How do I ignore capital letters or extra spaces?
Tick Ignore upper/lower case, Ignore whitespace differences or Ignore spaces at line ends before you click Compare.
Can I see both texts side by side?
Yes. Set View to Side by side to see the original and the changed text next to each other.
Is Text Compare free?
Yes. It is free to use with no sign-up and no limit on how many comparisons you run.
When to use Text Compare
- Spot changes between document versions
- Check edits made to an article
- Compare code or configuration snippets
- Verify copied text matches the original
- Proofread an edited essay, contract or translation against the first draft
Related: clean up text first with Remove Duplicate Lines or Find and Replace.