JWTSecrets

JWT Validator

Professional JWT token validation tool for security verification and debugging

About JWT Validation
JWT Validator helps verify token integrity, decode contents, and identify security issues in JSON Web Tokens.

Key Features

  • Verify token signature authenticity
  • Decode and inspect header and payload
  • Check token expiration (exp claim)
  • Validate issuer (iss) and audience (aud) claims
Validation Guide
How to properly validate JWT tokens for security

Validation Steps

  1. Check token structure (3 parts separated by dots)
  2. Verify signature using correct algorithm
  3. Validate standard claims (exp, nbf, iat)
  4. Check custom claims as needed

Security Best Practices

  • Never accept unsigned tokens ("none" algorithm)
  • Use proper key management
  • Implement token revocation for compromised tokens
  • Set reasonable token expiration times
JWT Validator
Validate JWT tokens and inspect their contents including headers, claims, and signatures