JWT Decoder
Decode JWT tokens.
Decodes header and payload only. This tool does not verify the signature.
Header
Payload
Signature (not verified)
Frequently Asked Questions
Does this verify the token signature?
No. This tool only decodes the header and payload for inspection. It does not verify the signature, so it cannot confirm the token is authentic or untampered.
Is my token sent to a server?
No. Decoding happens entirely in your browser using JavaScript. Avoid pasting tokens from production systems into any third-party tool if you're concerned about exposure.