JSON Web Token (JWT) Debugger

Decode, verify, and generate JSON Web Tokens, which are an open, industry standard RFC 7519 method for representing claims securely between two parties.

DecoderJWT Decoder
EncoderJWT Encoder

Paste a JWT below that you'd like to decode, validate, and verify.

Generate example

Encoded Token

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JSON Web Token (JWT)

JWT

Valid JWT

Signature Verified

Decoded Header

JSONJSON

Claims BreakdownClaims Breakdown

  : "HS256",

  : "JWT"

Decoded Payload

JSONJSON

Claims BreakdownClaims Breakdown

  : "1234567890",

  "name": "John Doe",

  "admin": true,

JWT Signature Verification(Optional)

Enter the secret used to sign the JWT below:

Base64URL Encoded

Secret

Valid secret

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{
       "sub": "1234567890",       "name": "John Doe",       "admin": true,       "iat": 1516239022}

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Give your AI Agents JWT skills

Use agent skills to decode, encode and validate JSON Web Tokens in your favorite agentic coding harness.

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Terminal

Install all skills

$ npx skills add jsonwebtoken/jwt-skills

Install a specific skill

$ npx skills add jsonwebtoken/jwt-skills -s jwt-decode