Frequently Asked Questions

What is JWT Decoder?

JWT Decoder is a free online tool for decoding and inspecting JSON Web Tokens (JWT) with header and payload analysis. It works entirely in your browser with no signup required.

Is JWT Decoder free to use?

Yes, JWT Decoder 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, JWT Decoder is fully responsive and works on smartphones, tablets, and desktop computers.

Do I need to create an account?

No. You can use JWT Decoder 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.