next-authvsbetter-auth
NextAuth is the incumbent, Next.js-specific, huge ecosystem. Better Auth is the newer challenger — framework-agnostic, typesafe, simpler mental model. Better Auth wins for new projects in 2026.
next-auth
github.com/nextauthjs/next-authThe OG Next.js auth library, now Auth.js. ~24k stars. Quick to add OAuth providers (80+ preconfigured). Best for fast MVP work where you mostly need social login. Less flexible than Better Auth for advanced flows.
Full review →better-auth
github.com/better-auth/better-authThe most flexible modern auth library for TypeScript stacks in 2026. Plugin ecosystem for 2FA, phone OTP, organization roles, audit logs. Same code works with Next.js, TanStack Start, Express. Becoming the default choice for greenfield TS projects.
Full review →Which should you pick?
Pick next-auth if…
You are shipping a Next.js MVP fast and need social login (Google, GitHub) working in an hour.
Skip next-auth if…
You need fine-grained control over sessions, multi-tenant logic, or organization roles — pick Better Auth.
Pick better-auth if…
You are starting a full-stack TypeScript app and want long-term scalability with full control over auth flows.
Skip better-auth if…
You want a fully managed auth platform with no ops — use WorkOS or Auth0.
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