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JWT Decoder
Decode a JWT header and payload.
DeveloperProcessed locally. Your input never leaves your browser.
This tool only decodes the token — it does not verify the signature. Never trust a JWT's contents without verifying it on a server you control.
Header
Payload
About
Decodes a JWT's header and payload entirely in your browser. This tool does not verify the signature, and cannot tell you whether a token is genuine — only a server holding the signing key can do that.