How to use Diff / Compare Text

What Diff / Compare Text does#

Paste two versions of a text or file and instantly see a unified diff of everything that was added, removed or changed. Great for reviewing edits and config changes. 100% in your browser.

How to use it#

Open the tool and paste or type your input.
Choose the options you want.
See the result instantly, updated as you work.
Copy it to your clipboard in one click.

Your privacy#

Diff / Compare Text runs entirely in your browser. Your data never leaves your device — there is no upload, and nothing is stored on our servers.

Frequently asked questions

Is Diff / Compare Text free to use?

Yes. Diff / Compare Text is completely free and needs no account or sign-up.

Is my data private?

Yes. Diff / Compare Text works entirely in your browser, so your data never leaves your device.

Do I need to install anything?

No. Diff / Compare Text runs online in any modern browser, on desktop or mobile.