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JWT Decoder & Debugger

JWT Token

Invalid JWT Token

Quick Examples:

About JWT Decoder & Debugger

The most comprehensive JWT tool available: decode, generate, and validate JWT tokens with real-time cryptographic verification, comprehensive claims analysis, multiple key format support, and professional code generation.

How to Use JWT Decoder & Debugger

  • Switch between Decode and Generate modes using the toggle at the top
  • Decode: Paste JWT tokens for instant parsing and comprehensive analysis
  • Generate: Create custom tokens with your own headers, payloads, and keys
  • Enable signature verification with support for all JWT algorithms and key formats
  • View detailed claims explanations with security warnings and validation
  • Export code examples in 7 programming languages for easy integration
  • Use JWKS endpoints for enterprise-grade public key verification