JWT Validator

Validate, inspect and decode JSON Web Tokens. Check expiration and structure.

Header

Payload

Token Claims

JWT Validation API

curl -X POST https://ai.doxx.lat/api/jwt-decode \
  -H "Content-Type: application/json" \
  -d '{"token":"eyJ..."}'

Free API. No signup needed. CORS enabled.

About JWT Validation

JSON Web Tokens (JWT) are compact, URL-safe tokens used for authentication and information exchange. A JWT has three parts: Header (algorithm and type), Payload (claims data), and Signature. This tool decodes the header and payload, checks standard claims like expiration (exp), issued-at (iat), and not-before (nbf), and verifies the token structure is well-formed.