Compare two texts
Paste the original and the changed version. Changed words are highlighted, and you can copy the result as a patch.
How to use it
- 1Paste the original text on the left.
- 2Paste the changed text on the right — or drop a file into either box.
- 3Read the highlighted differences, switch between side-by-side and unified view, or copy them as a patch.
Related tools
Frequently asked questions
Can it ignore spaces or capital letters?
Yes. Turn on “Ignore spacing” or “Ignore upper/lower case” to hide differences you don't care about.
What does “Copy as patch” do?
It copies the differences in unified diff format — the same format used by git — so you can share or apply them.
How big can the texts be?
Up to 20,000 lines each. Long unchanged stretches are collapsed so the changes are easy to find.
Is my text uploaded?
No. The comparison runs in your browser.