Better Auth

What it is

Better Auth is an open-source TypeScript authentication framework. Not a managed service — it runs in your app, owns no data, and stores sessions in your database. It ships with adapters for Drizzle, Prisma, and Mongoose, plus first-class Next.js integration.

Who it's for

• Teams who need auth without a monthly bill
• Apps where data residency matters (regulated industries, enterprise)
• Developers who want to inspect, extend, or fork the auth layer
• Projects already using Drizzle or Prisma — the schema integration is tight

The good

Genuinely type-safe end to end. Auth config, session types, and user schema all flow through TypeScript without workarounds. The session object in Server Components and API routes is fully typed from your schema.

Plugin system is well-designed. Two-factor auth, magic links, passkeys, organizations — these are plugins you opt into, not monolithic features you get whether you want them or not. Keeps the bundle lean.

No vendor lock-in. Users live in your Postgres. Session tokens live in your Redis or database. Migrate away and nothing breaks — there's no export step.

Pricing: $0 forever. No MAU tiers. No "you hit 10k users, now pay $25/mo" cliff. For consumer apps with large user bases, this is a significant advantage.

The bad

It's relatively new. Better Auth reached 1.0 in late 2024. The surface area is smaller than Clerk, and you'll occasionally hit missing features or docs gaps. The GitHub community is responsive but it's not a Vercel-sized team.

You own the ops. No hosted dashboard for user management. No built-in fraud signals. Email deliverability is your problem. This is the right tradeoff for some teams — but it's real work compared to Clerk.

Docs are good but not great. The API reference is solid; the conceptual guides are still thin in places. You'll read source code occasionally.

No pre-built UI components. Clerk ships <SignIn /> that looks good out of the box. Better Auth ships no UI — you build the forms. Factor in 3-5 hours of component work.

Pricing reality

Free. Always. Self-hosted means the only cost is your database (you already have one) and your server (already paying for it). At 100k MAU: $0 vs Clerk's escalating enterprise pricing. This is the main reason to pick Better Auth over a managed service for a side project that might scale.

Verdict

Better Auth is the right call when you want the power of a real auth framework without the managed-service cost or lock-in. The DX is a step below Clerk, but it's a big step above rolling your own. If you're building a consumer app where MAU pricing matters, or you work in an industry where data residency is non-negotiable, this is your tool.