Keep your tokens secure
JWTs can contain sensitive information. Never share tokens containing real user data in public forums. Always use HTTPS and set appropriate expiry times.
JWT Decoder
Decode and inspect JSON Web Tokens (JWT) instantly.
Paste your JWT below to decode the header and payload. Useful for debugging authentication, checking claims and understanding token contents.
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We design and build secure, scalable systems with modern authentication solutions.
Talk to our teamWhat is a JWT?
A JSON Web Token (JWT) is a compact, URL-safe token format used to securely transmit information between parties. It consists of three parts (header, payload and signature) separated by dots and is commonly used for authentication and authorisation in modern web applications and APIs.
Common use cases
- User authentication (login sessions)
- Authorisation and role-based access
- API authentication (e.g. OAuth 2.0, OpenID Connect)
- Single Sign-On (SSO)
- Sharing claims between services
- Mobile and web application security
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