Analisador JWT

Descodifique e analise JSON Web Tokens (JWT) com validação em tempo real. Veja de forma segura no seu navegador o cabeçalho, o payload e a assinatura.

Como usar o analisador JWT

1

Colar token

Paste your JWT token in the input area

2

Descodificação automática

Token automatically decodes on paste

3

Inspecionar partes

View header, payload, and signature data

4

Verificar estado

Verify token validity and expiration time

Compreender os tokens JWT

O que é um JWT?

JSON Web Token (JWT) is a compact, URL-safe means of representing claims to be transferred between two parties. It consists of three parts: header, payload, and signature, separated by dots and base64url encoded.

  • Header: Contains token type and signing algorithm
  • Payload: Contains claims or user data
  • Signature: Verifies token wasn't tampered with
  • Stateless: No server-side session storage needed

Why Parse JWTs?

JWT parsing is essential for debugging authentication issues, verifying token contents, checking expiration times, and understanding what data is being transmitted in tokens.

  • Depuração: Inspect token contents during development
  • Segurança: Verify token structure and claims
  • Expiração: Check token validity period
  • Desenvolvimento: Understand authentication flow

Descodificação instantânea

Auto-decode JWT on paste with color-coded sections.

100% privado

All decoding happens in your browser. Tokens never leave your device.

Totalmente grátis

No registration or limits. Parse JWT tokens freely anytime.