BetterAuth vs NextAuth: Choose the Right Auth Library for Your SaaS

BetterAuth and NextAuth are both open-source authentication libraries for Node.js/TypeScript projects that let developers manage user accounts in their own databases. BetterAuth offers superior developer experience with TypeScript-first design, built-in features like 2FA and rate limiting, and a plugin ecosystem for advanced functionality like multi-tenancy. NextAuth provides broader OAuth provider support and established stability but requires more manual configuration for advanced features. Both are free to use with no per-user costs, making them cost-effective alternatives to hosted authentication services. BetterAuth is recommended for new TypeScript projects requiring advanced auth features, while NextAuth suits simpler Next.js applications with basic authentication needs.