Firebase Authentication

Simple, free multi-platform sign-in

Easy sign in with any platform

Firebase Authentication aims to make building secure authentication system easy, while improving the sign-in and onboarding experience for end users. It provides an end-to-end identity solution, supporting Email/password accounts, phone auth, Google, Twitter, Facebook, GitHub login and more.


Flexible, drop-in UI

FirebaseUI provides a customizable, open-source, drop-in auth solution that handles the UI flows for signing in users. The FirebaseUI Auth component implements best practices for authentication on mobile devices and websites, which can maximize sign-in and sign-up conversion for your app.

Comprehensive Security

Built by the same team that developed Google Sign-in, Smart Lock and Chrome Password Manager and applies Google's internal expertise of managing one of the largest account databases in the world.

Fast implementation

It can take months to set-up your own auth system and requires an engineering team to maintain in the future. Set up the entire authentication system of your app in under 10 lines of code, even handling complex cases like account merging.

Part of the Firebase platform

Firebase helps you develop high-quality apps, grow your user base, and earn more money. Each feature works independently, and they work even better together.

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