/tools/jwt

Decode, verify, and sign JSON Web Tokens

Paste a token to read its header and claims with expiry and not-before checked against your clock. Verify the signature with a shared secret, a PEM public key, or a JWK. Sign a new token with HS256, HS384, or HS512.

Runs in your browser. Nothing you paste leaves this page.

Paste a token to decode it.

Header
Header appears here.
Payload
Claims appear here.