JWT Decoder
Decode a JSON Web Token to read its header, payload and expiry.
How to use the JWT Decoder
- 1Paste the tokenThe three dot-separated parts.
- 2Read header and payloadWith issued and expiry times.
What is the JWT Decoder?
JSON Web Tokens carry login and permission data between apps. This decoder shows the header and payload of a token in readable JSON and turns the iat, nbf and exp times into dates, so you can see at a glance whether a token has expired. Decoding happens in your browser.
Decoding happens in your browser; the token is never sent anywhere.
When to use it
- Debugging login problems.
- Checking token expiry.
- Learning how JWT works.
Questions
Does it verify the signature?
No. It only decodes. Verify signatures on your server with the secret or public key.
Is the JWT Decoder free?
Yes. It is completely free with no sign-up and no watermark. Use it as often as you like.
Are my files uploaded to your server?
No. This tool runs inside your browser, so your files and text stay on your own phone or computer.
Does it work on mobile?
Yes, it works in Chrome, Safari and other modern browsers on Android, iPhone, Windows and Mac.
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