
Firebase Authentication
Build secure authentication systems with Firebase's backend services, drop-in UI libraries, and support for email, phone, Google, Apple, and social logins.

Firebase Authentication provides backend services, easy-to-use SDKs, and ready-made UI libraries to authenticate users across any platform. Built by Google's team behind Google Sign-in and Chrome Password Manager, it leverages expertise from managing one of the world's largest account databases.
Key features include:
- Multi-platform support - Works seamlessly across iOS, Android, web, C++, and Unity
- Multiple sign-in methods - Email/password, phone authentication, Google, Apple, X, Facebook, GitHub, and more
- Drop-in UI components - FirebaseUI provides customizable, open-source authentication flows that maximize conversion
- Enterprise-grade security - Built with Google's internal security expertise and best practices
Fast implementation means you can set up your entire authentication system in under 10 lines of code, handling even complex cases like account merging. This eliminates months of development time and ongoing maintenance requirements.
The platform has helped companies like STAGE cut release time in half and Acintyo speed up development by 25%, serving millions of users across 175+ countries with reliable, scalable infrastructure.