Frequently Asked Questions

What is Diff Checker?

Diff Checker is a free online tool for comparing two text blocks and highlighting differences. It works entirely in your browser with no signup required.

Is Diff Checker free to use?

Yes, Diff Checker is completely free to use. There are no hidden fees, subscriptions, or limitations.

Is my data safe?

Absolutely. All processing happens locally in your browser. We never send, store, or log any of your data on our servers.

Does it work on mobile?

Yes, Diff Checker is fully responsive and works on smartphones, tablets, and desktop computers.

Do I need to create an account?

No. You can use Diff Checker immediately without registering or creating an account.

How can I report a bug?

If you find a bug or have a suggestion, please reach out to us via the contact information on the About page.