JWT Decoder
Paste a JWT (JSON Web Token) and decode its header and payload. Useful for developers to inspect JWT contents without verification.
Security Notice
This tool only decodes JWT tokens - it does not verify signatures. Never paste sensitive or production JWTs into online tools.
Sample JWT
JWT Structure
Header: Contains metadata about the token, including the signing algorithm and token type.
Payload: Contains the claims - statements about an entity (typically, the user) and additional data.
Signature: Used to verify the token's authenticity and ensure it hasn't been tampered with.
Format:
header.payload.signatureShare This Tool
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