JSON Web Tokens - jwt.io

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

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

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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