100% Client-side
JWT Decoder
Decode a JSON Web Token to read its header and payload, privately in your browser. Your token never leaves your device.
Advertisement
FAQ
Does it verify the signature?
No. This tool decodes the header and payload so you can read them. It does not validate the signature, so never trust an unverified token in production.
Is my token uploaded?
No. Decoding happens entirely in your browser. Your token never leaves your device, which matters for secrets.
Is it free?
Yes, free with no signup.
Related tools
Advertisement