JWT Generator

Generate JWT Token online

Common Claims
Header JSON format
Payload JSON format — auto-merged with claims above

Base64Url Encoding Preview

Header:eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9
Payload:eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIn0

JWT Token Generator User Guide

Features

  • Multi-algorithm Support - HS256, HS384, HS512, RS256
  • Live Preview - Base64Url encoding of Header and Payload
  • Common Claims - Quick config for iss, sub, aud, exp, iat
  • Expiration Settings - Auto-calculate exp timestamp
  • Local Generation - All computation done locally, data never uploaded

Use Cases

  • API debugging and testing
  • Learn and understand JWT structure
  • Generate test tokens for development
  • Verify JWT decode results
  • Authentication system development

常见问题

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