Skip to main content
Developer Tools

JWT Decoder

Decode a JSON Web Token to read its header and payload claims, without uploading it.

Written by SamundraLast updated

This reads the token, it does not verify the signature — a JWT's payload is only Base64, not encryption, so anyone holding the token can read these claims. Verifying would mean pasting in your signing key, which you should never do on any website. Nothing here is uploaded anywhere; the decoding happens entirely on your device.

Last updated:

Share this tool

Know someone who'd find it useful? Send it their way.