JWT Decoder

Decode JSON Web Tokens (JWT) instantly. Inspect the header and payload data securely in your browser.

Header (Algorithm & Type)
// Waiting for token artifact...
Payload (Claims & Data)
// Waiting for claims...

On-Device Decoding

Your tokens never leave your browser. Decoding happens locally, ensuring sensitive authentication data remains private and secure.

Structure Inspection

Easily inspect the header, payload, and signature components. Perfect for debugging authentication flows and verifying claims.