Understanding JWT: How to Safely Decode and Verify Your Tokens

JWT basics

JWT contains header, payload, and signature. Decoding is not the same as verifying trust.

Safe verification flow

1. Decode and inspect claims.
2. Verify signature and algorithm policy.
3. Validate issuer, audience, and expiration.

Debug faster

Use JWT Debugger to inspect token content and test HS256 signature validation.