Lucia Has a Free Authentication Library — Here's How to Use It

Auth0 charges $23/month for 1,000 users. Clerk starts at $25/month. Lucia gives you production-ready authentication for free — and you own every line of code. What Is Lucia? Lucia is a lightweight, session-based authentication library for TypeScript. It's not a service or a framework — it's a set of primitives that you compose into your auth system. Why Not Use Auth-as-a-Service? Lucia Auth Services Cost at 10K users $0 $100-500/month Data ownership You own everything Vendor lock-in Customization Full control Limited to their UI Vendor risk None Service shutdown = disaster Session storage Your database Their infrastructure Quick Start npm install lucia import { Lucia } from " lucia " ; import { DrizzlePostgreSQLAdapter } from " @lucia-auth/adapter-drizzle " ; const adapter = new DrizzlePostgreSQLAdapter ( db , sessionTable , userTable ); export const lucia = new Lucia ( adapter , { sessionCookie : { attributes : { secure : process . env . NODE_ENV === " production " } }, getUserAttribu