Authdog

JWT Playground

Decode, verify, and generate JSON Web Tokens (RFC 7519), locally in your browser.

Runs locally in your browser

JWT Decoder or Encoder

Paste a JWT to decode the header and payload, then verify the signature, all locally in your browser.

Encoded token

Paste any JWT to decode it locally.

>_JSON Web Token (JWT)

Awaiting token

Enter a secret to verify the signature

Decoded header

Paste a valid token to decode its header.

Decoded payload

Paste a valid token to decode its payload.

Signature verification (optional)

Enter the secret used to sign the JWT.

>_Secret

Not verified yet