JWT Decoder Online
Decode and inspect JSON Web Tokens (JWTs) instantly. View header, payload, and standard claims. No signature verification — client-side only.
Common Use Cases
- Debugging an auth token from a login responsePaste the access_token from a login API response to inspect the user claims (sub, email, roles) and confirm the token structure before using it in your app.
- Inspecting token expiry before an API callCheck the exp claim of a JWT stored in localStorage or a cookie to determine whether it has expired and whether you need to refresh it before making an API call.
- Reading claims from an SSO tokenDecode a SAML assertion or OAuth JWT from an identity provider (Auth0, Okta, Keycloak) to inspect the standard and custom claims in the payload.
Pro plan — coming soon
Save your history, create reusable presets, and share outputs with a link. One plan, all tools.
See what's planned →Frequently Asked Questions
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