What a text diff shows you
When two versions of a document look almost identical, spotting what actually changed by eye is slow and error-prone. A text compare tool lines the two versions up and highlights every difference — added lines in green, removed lines in red — so you can see exactly what was edited in seconds. It’s the same idea developers use for code reviews, applied to any plain text.
How to compare text
- Paste the original text on the left and the changed text on the right.
- Click Compare.
- Step through the differences with the arrows, then export the diff if you like.
Handy uses
- Document versions: see what a reviewer changed in a draft.
- Config & logs: compare two settings files or log snippets.
- Writing: check edits between two drafts of an essay or article.
- Data: spot differences between two lists or exports.
Frequently asked questions
What does it compare? It aligns the two texts line by line and highlights added, removed and modified lines.
Can I export the differences? Yes — export the diff as a text file to save or share.
Comparing JSON specifically? Use the JSON Diff Checker, which understands JSON structure.
Is my text private? Yes — both texts stay in your browser.