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San Francisco, CA, USAFounded 20254+ employeesPrivate
$5M raisedSeed· last: seed (Jun 2025)· 1 rounds
Backed by(6 investors)

Better Auth provides tools for developers to simplify how developers manage user authentication.

Founders

YC P25

Hiring Pitch

Better Auth is a comprehensive authentication framework for TypeScript that lets you implement everything from simple auth flows to enterprise-grade systems directly on your own database, embedded in your backend. It’s loved by developers all over the world and endorsed by leading voices in the ecosystem.

On top of the framework, Better Auth also provides an infrastructure layer to help you scale with user management and analytics, bot and fraud detection, transactional email and SMS, global session storage and more.

Tech Stack

We build Better Auth almost entirely in TypeScript, and we push it to its limits. We work with advanced TypeScript generics and type inference to create APIs that feel effortless to use while being extremely type‑safe under the hood.

We’re open source, every line of code we ship to production is something we’re proud to share publicly. Our community depends on us to deliver clean, well‑architected, extensible code that others can learn from and contribute to.

Beyond the framework, we’re building a commercial infrastructure layer that still in TypeScript designed to solve hard, distributed‑systems problems:

  • Analytics and user management dashboards

  • Global session storage

  • Bot/fraud/abuse detection at scale

  • Transactional email/SMS pipelines

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