Diff Checker (Compare Text)
Compare two texts and highlight added and removed lines. Ignore whitespace or case. Free online diff tool — your text stays private.
✓ 100% free ✓ No sign up ✓ Runs in your browser — nothing uploaded
+2 added · −1 removed
1 1 The quick brown fox
2 - jumps over
2 + leaps over
3 3 the lazy dog.
4 4 Line four
5 + Line five
How to use Diff Checker (Compare Text)
- 1Open Diff Checker (Compare Text) — it works right on this page.
- 2Use the controls above.
- 3Copy or download the result. No sign up needed.
Questions
Is Diff Checker (Compare Text) free?
Yes. Diff Checker (Compare Text) is 100% free with no limits, no watermark, no sign up and no email required.
Is my data sent anywhere?
No. Everything is calculated locally in your browser. Nothing you type is sent to or stored on any server.
Does Diff Checker (Compare Text) work on my phone?
Yes. Diff Checker (Compare Text) works in any modern browser on iPhone, Android, Windows, Mac, Linux and Chromebook. No app or install needed.
Do I need to create an account?
Never. There is no sign up, no login, no email and no paywall. Just open the page and use it.