Token Tool
Create and manage different types of authentication tokens

What are Opaque Tokens?

Opaque tokens are random strings that have no meaning to the client. Unlike JWTs, they cannot be decoded or inspected by the client. They must be validated by checking against a server-side database.

Key Benefits

  • Can be instantly revoked (unlike JWTs)
  • No sensitive data is exposed to the client
  • Token size remains constant regardless of the data it represents
  • More secure for sensitive operations

Generate Token

Validate Token

Server-Side Token Database

This simulates the database where opaque tokens are stored on the server. In a real application, this would be securely stored and not accessible to clients.

Token IDUser IDExpiresStatusAction
No tokens generated yet

Opaque Tokens vs JWTs

Opaque Tokens

  • Server-side validation required
  • Can be instantly revoked
  • No data exposed to client
  • Requires database lookups
  • Better for sensitive operations

JWTs

  • Client-side validation possible
  • Cannot be easily revoked
  • Data is encoded but visible
  • Stateless (no database needed)
  • Better for distributed systems