JWT Decoder & Secret Generator
Decode JSON Web Tokens (JWT) instantly to inspect payloads and headers, and generate cryptographically secure secrets in your browser.
Header (Algorithm & Type)
// Waiting for token artifact...
Payload (Claims & Data)
// Waiting for claims...
JWT Secret Generator
Generate cryptographically secure secrets to sign and verify HS256, HS384, or HS512 tokens.
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.