better-auth.html

Better Auth

Newer TypeScript-first OSS auth library. Designed as the modern Auth.js alternative.

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Quick facts

  • CategoryLibrary / OSS
  • LanguageTypeScript
  • PricingOpen source
  • LicenseMIT
  • Created2024
  • GitHub stars18.4k
  • HIPAA-eligibleNo
  • SSO / SAMLOut of box

What it is

Better Auth is the 2024 TypeScript-first auth library positioned as the modern alternative to Auth.js. Cleaner API, framework-agnostic, plugin architecture, organisation primitives, multi-tenancy, native MFA. Growing fast in the indie + small-team segment.

Best for

  • Greenfield TypeScript projects that want a modern OSS auth library
  • Teams comparing against Auth.js and finding the abstractions awkward
  • Multi-tenant briefs where Auth.js feels constrained

When not to pick it

Skip Better Auth for very mature production deployments where Auth.js's years of bug-fixes are worth the abstractions. Skip if you need pre-built UI.

My take

Better Auth is the newer, cleaner Auth.js. The API is genuinely better. Younger but the trajectory is strong.

Links

Compare Better Auth side-by-side

Better Auth vs Clerk → Better Auth vs Auth.js (NextAuth) → Better Auth vs Lucia →

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Auth.js (NextAuth)

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Lucia

Lightweight TypeScript auth library. Library-not-framework — minimal opinions, BYO everything.

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SuperTokens

Open-source self-hosted auth library. SDK-style integration, app-database-aware.

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If Better Auth is your pick — the next conversation is short

The 30-min call is where your auth choice becomes a real architecture, a migration plan if you are switching, and a price range you can take to your stakeholders. Describe your stack, your scale, your compliance constraints. I tell you whether Better Auth is genuinely your fit.