Lucia
Educational material about implementing authentication and sessions.
What it does
Educational material about implementing authentication and sessions.
When it fits
Learning the underlying mechanics of an application-owned authentication system.
Keep in mind
The Lucia library was deprecated in March 2025. Its current site teaches authentication and session implementation.
Other options in this category
- Auth.js — Adding provider-based sign-in and session handling to a web application.
- Auth0 — Supporting multiple sign-in providers across web and mobile applications.
- Better Auth — Implementing accounts and sessions with an extensible application-owned auth layer.
- Clerk — Adding account screens and session handling to a React application.
- FusionAuth — Applications that need control over identity deployment and configuration.
Source
Editorial overview reviewed on October 24, 2026. Follow the source for current setup, compatibility, and licensing.