JWT Decoder
Paste a JWT to read its header and payload, see iat, exp and nbf as real dates, and check the signature against a secret or a public key.
Runs in your browser. The file stays with you.
A token is only as private as the page you read it on: the decoding happens here, in this tab.
Token
Nothing to show yet. Paste a token above.
How to use JWT Decoder
Paste your input.
Type or paste it into the box above.
Read the result.
It appears on the same page, worked out in your browser.
Copy it or save it.
Copy the result with one click. Saving it as a file needs a free account.
JWT Decoder questions
Is JWT Decoder free?
Yes. Using it costs nothing. Saving the result needs a free account, nothing more.
Does my data leave my device?
No. JWT Decoder runs in your browser, so what you put in stays on your device.
Why do I need an account?
To save what the tool makes. The same free account opens the CV builder, the DB diagram tool and every other tool in one dashboard.
Does it work on a phone?
Yes. There is nothing to install: it works in any modern browser on a phone, a tablet or a computer.