Guides
JWT Debugging Workflow for Developers
JWT authentication issues are among the most common API integration problems. This guide covers systematic token inspection.
Step 1: Decode the Token
Paste the JWT into the JWT Decoder. Verify three segments exist and inspect header.alg and payload claims.
Step 2: Check Expiration
Compare exp claim to current Unix timestamp using the Timestamp Converter.
Step 3: Verify Claims
Check iss, aud, sub match your expectations. Custom claims should match your application's schema.