Converters

JWT Decoder

Decode and inspect JSON Web Tokens. View header, payload, expiration status, and claims without server-side processing.

About This Tool

The JWT Decoder splits a JSON Web Token into its header, payload, and signature components. View decoded JSON with syntax highlighting, check expiration status, and validate token structure.

How to Use

  1. Paste your JWT token
  2. Header and payload decode automatically
  3. Check expiration status
  4. Copy individual sections

FAQ

Can this verify JWT signatures?

No. Signature verification requires the secret key or public key, which should never be exposed in a browser.