better-auth

The most comprehensive authentication framework

28.4k stars2.6k forks37 watchers347 open issuesTypeScriptMIT

EDITOR'S TAKE

The 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.

Use this if

You are starting a full-stack TypeScript app and want long-term scalability with full control over auth flows.

Skip if

You want a fully managed auth platform with no ops — use WorkOS or Auth0.