All questions
Q & A Security · September 11, 2026

Can I revoke a JWT before it expires?

Not directly — JWTs are stateless by design. Options: (1) short expiry (5-15 min) with refresh tokens, (2) a revocation list checked at verification time, (3) session-tied JWT with a jti (JWT ID) claim recorded in a fast KV store. The right choice depends on how quickly a compromised token must stop working.

Read the full guide
What Is a JWT? JSON Web Token Structure, Signing, and Security Explained
JWT (JSON Web Token) is the dominant format for API authentication, OAuth access tokens, and stateless session management. Three base64-encoded segments carry the header, claims, and signature — anyone can read them, but only the key holder can produce a valid token.
Related questions
Are UUIDs guaranteed to be unique? Can I use UUID as a primary key? How do I verify a JWT signature without the secret? How much larger does Base64 make my payload? Is a JWT encrypted or just signed?