Jwudtool Tutorial File
Enter — a lightweight, command-line utility designed to simplify JWT inspection, manipulation, and testing.
jwudtool verify --secret mysecret <token> Expected output:
jwudtool decode eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9... jwudtool tutorial
"sub": "1234567890", "name": "John Doe", "iat": 1516239022
jwudtool verify --pubkey public.pem <token> Need to change a claim for testing? Clone and modify: Enter — a lightweight, command-line utility designed to
HEADER:
✓ Signature valid If invalid:
Learn how to decode, verify, and debug JSON Web Tokens using jwudtool. Perfect for developers and security testers. Introduction JSON Web Tokens (JWTs) are everywhere — from authentication flows to API authorization. But if you’ve ever tried to manually decode a JWT or debug a signature mismatch, you know it can get messy fast.
