Firebase Authentication
Product brand
UnclaimedFirebase Authentication is a multi-platform sign-in product that provides an end-to-end identity solution for apps.
Last updated September 15, 2026
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Overview
Firebase Authentication aims to make building secure authentication systems easy while improving the sign-in and onboarding experience for app users. It provides an end-to-end identity solution supporting email and password accounts, phone auth, and login with Google, Apple, X, Facebook, and GitHub, across iOS, Android, web, C++, and Unity platforms. FirebaseUI offers a customizable, open source, drop-in auth solution that handles the UI flows for signing in users and implements best practices for authentication on mobile devices and websites. The product was built by the same team that developed Google Sign-in, Smart Lock and Chrome Password Manager, and it securely applies Google's internal expertise of managing one of the largest account databases in the world. Firebase Authentication is listed among Firebase's Build products.
History
Firebase Authentication is presented by Firebase as a product that aims to make building secure authentication systems easy while improving the sign-in and onboarding experience for app users. It provides an end-to-end identity solution supporting email and password accounts, phone auth, and login with Google, Apple, X, Facebook, and GitHub, across iOS, Android, web, C++, and Unity platforms. FirebaseUI provides a customizable, open source, drop-in auth solution that handles the UI flows for signing in users and implements best practices for authentication on mobile devices and websites. The product was built by the same team that developed Google Sign-in, Smart Lock and Chrome Password Manager, and it securely applies Google's internal expertise of managing one of the largest account databases in the world. Firebase states that setting up the entire authentication system of an app, capable of handling even complex cases like account merging, can be done in under 10 lines of code. Firebase Authentication is listed among Firebase's Build products.
Products and positioning
Easy sign-in with any platform; an end-to-end identity solution that makes building secure authentication systems easy.
Firebase Authentication
An end-to-end identity solution supporting email and password accounts, phone auth, and login with Google, Apple, X, Facebook, and GitHub, across iOS, Android, web, C++, and Unity platforms.
FirebaseUI Auth
A customizable, open source, drop-in auth solution that handles the UI flows for signing in users and implements best practices for authentication on mobile devices and websites.
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