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Documentation
Firebase ML
Overview
Fundamentals
Add Firebase - Apple platforms (iOS+)
Add Firebase - Android
Add Firebase - Web
Add Firebase - Flutter
Add Firebase - C++
Add Firebase - Unity
Add Firebase - Server environments
Manage Firebase projects
Supported platforms & frameworks
AI
Develop with AI assistance
Overview
Gemini in Firebase
Streamline development with an AI-powered assistant in Firebase interfaces and tools.
MCP, Gemini CLI, & agents
Access agentive development tools, like our MCP server and Gemini CLI extension.
Firebase Studio (deprecated)
Build and ship full-stack AI-infused apps right from your browser.
Build AI-powered apps
Firebase AI Logic
Build AI-powered mobile and web apps and features with the Gemini and Imagen models using Firebase AI Logic.
Genkit
Build full-stack AI-powered applications using this open-source framework.
Build
Authentication
Simplify user authentication and sign-in on a secure, all-in-one identity platform.
Phone Number Verification
Obtain the phone number of a device directly from the carrier, without SMS.
App Check
Protect your backend resources from abuse and unauthorized access.
Security Rules
Define granular, server-enforced rules to protect your database and storage data.
SQL Connect
Build and scale your apps using a fully-managed PostgreSQL relational database service.
Firestore
Store and sync data using a scalable NoSQL cloud database with rich data models and queryability.
Realtime Database
Store and sync data in realtime with a NoSQL cloud database.
Storage
Store and serve content like images, audio, video with a secure cloud-hosted solution.
App Hosting
Deploy your modern, full-stack web apps with server-side rendering and AI features.
Hosting
Deploy your static and single-page web apps to a global CDN with a single command.
Cloud Functions
Run backend code in response to events without provisioning or managing a server.
Extensions
Deploy pre-built integrations and solutions for common tasks.
Emulator Suite
Test your app in real-world conditions without affecting live data.
Run
Test Lab
Test your Android and iOS apps on a wide range of real and virtual devices, all in the cloud.
App Distribution
Streamline delivery of pre-release Android and iOS apps to trusted testers.
Crashlytics
Track, prioritize, and fix app stability issues.
Performance Monitoring
Gain real-time insight into your app's performance and fix issues.
Remote Config
Instantly change your app's behavior and appearance, without publishing an update.
A/B Testing
Test variants to make data-driven decisions about changes, features, and campaigns.
Cloud Messaging
Send notifications and messages to your users on Android, iOS, and the Web.
In-App Messaging
Engage your active users with targeted, contextual messages within your app.
Google Analytics
Gain insights into user behavior, and optimize your app's marketing and performance.
Google Admob
Monetize your app, gain user insights, and tailor the ad experience.
Google Ads
Run smarter campaigns, find high-value users, and measure in-app conversions.
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Solutions
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Overview
Emulator Suite
Introduction
Connect your app and prototype
Get started
Connect to the Authentication emulator
Connect to the Realtime Database emulator
Connect to the Firestore emulator
Connect to the Cloud Storage for Firebase emulator
Use the Hosting emulator
Use the App Hosting emulator
Connect to the Cloud Functions emulator
Use the Extensions emulator
Install, configure and integrate
Authentication
Introduction
Where do I start?
Users in Firebase Projects
iOS+
Sign in with a pre-built UI
Get Started
Manage Users
Password Authentication
Email Link Authentication
Email Link Migration
Sign in with Google
Facebook Login
Sign in with Apple
Twitter Login
GitHub
Microsoft
Yahoo
Game Center Sign-in
Phone Number
OpenID Connect
Use a Custom Auth System
Anonymous Authentication
Enabling cross-app authentication with shared Keychain
Link Multiple Auth Providers
SMS Multi-factor Auth
TOTP Multi-factor Auth
Passing State in Email Actions
Handle Errors
Android
Sign in with a pre-built UI
Get Started
Manage Users
Password Authentication
Email Link Authentication
Email Link Migration
Sign in with Google
Facebook Login
Sign in with Apple
Twitter
GitHub
Microsoft
Yahoo
Play Games Sign-in
Phone Number
OpenID Connect
Use a Custom Auth System
Anonymous Authentication
SMS Multi-factor Auth
TOTP Multi-factor Auth
Link Multiple Auth Providers
Passing State in Email Actions
Flutter
Get Started
Manage Users
Password Authentication
Email Link Authentication
Federated Identity & Social
Phone Number
Use a Custom Auth System
Anonymous Authentication
Multi-factor Auth
Link Multiple Auth Providers
Passing State in Email Actions
Handle Errors
Web
Sign in with a pre-built UI
Get Started
Manage Users
Password Authentication
Email Link Authentication
Sign in with Google
Facebook Login
Sign in with Apple
Twitter
GitHub
Microsoft
Yahoo
Phone Number
OpenID Connect
SAML
Use a Custom Auth System
Anonymous Authentication
SMS Multi-factor Auth
TOTP Multi-factor Auth
Link Multiple Auth Providers
Customize Dependencies
OAuth Sign-In for Cordova
Sign in users from a Chrome extension
Auth State Persistence
Passing State in Email Actions
Service Worker Sessions
Best practices for signInWithRedirect flows
C++
Get Started
Manage Users
Password Authentication
Sign in with Google
Play Games Sign-in
GitHub
Facebook Login
Sign in with Apple
Twitter Login
Microsoft
Yahoo
Phone Number
Use a Custom Auth System
Anonymous Authentication
Link Multiple Auth Providers
Unity
Get Started
Manage Users
Password Authentication
Sign in with Google
Play Games Sign-in
GitHub Authentication
Facebook Login
Sign in with Apple
Twitter Login
Microsoft
Yahoo
Phone Number
Use a Custom Auth System
Anonymous Authentication
Link Multiple Auth Providers
Admin
Introduction
Manage Users
Import Users
Create Custom Tokens
Verify ID Tokens
Manage Multi-factor Users
Manage User Sessions
Manage Session Cookies
Control Access with Custom Claims
Generating Email Action Links
Errors
Configure OAuth identity providers programmatically
Configure Auth providers using the Firebase CLI
Customize the Email Action Handler
Extend with Cloud Functions
Extend with blocking functions
Email Custom Domains
Case Studies
Usage Limits
Phone Number Verification
Introduction
Codelab
Get started on Android
Upgrade to production
Verify tokens on your server
Customize the flow
Sign in with phone numbers
Observability
Pricing
App Check
Introduction
Get started
Default providers
iOS+ (DeviceCheck)
iOS+ (App Attest)
Android (Play Integrity)
Web (reCAPTCHA Enterprise)
Web (reCAPTCHA v3)
Flutter
Unity
C++
Custom providers
Server implementation
iOS+ client implementation
Android client implementation
Web client implementation
Unity client implementation
C++ client implementation
Debug & test providers
Use the debug provider in iOS+
Use the debug provider in Android
Use the debug provider in web apps
Use the debug provider with Flutter
Use the debug provider in Unity apps
Use the debug provider with C++
Monitor request metrics
Standard Google services
Cloud Functions for Firebase
Enable enforcement
Standard Google services
Cloud Functions for Firebase
Protect custom resources
Send tokens from the client
iOS+
Android
Web
Flutter
Unity
C++
Verify tokens on the backend
SQL Connect
Introduction
Pricing and billing
Get started
Quickstarts
React
Flutter
Design schemas and operations
Design SQL Connect schemas
Implement SQL Connect queries
Implement SQL Connect mutations
Secure operations with authorization
Implement operations using native SQL
Develop and test with SQL Connect
Seed test data and perform bulk operations
Generate Web SDKs
Generate Android SDKs
Generate iOS SDKs
Generate Flutter SDKs
Get real-time updates
Generate Admin SDKs
Use the SQL Connect emulator for CI/CD
Manage SQL Connect projects
Manage schemas and connectors
Manage services and databases
Run privileged operations with the Firebase Admin SDK
SQL Connect solutions
Use AI assistance for schemas, queries and mutations
Extend with Cloud Functions
Extend data source support with custom resolvers
Perform vector similarity search
Perform full-text search
GraphQL language reference guides
Directives reference
Queries reference
Mutations reference
Objects reference
Input objects reference
Scalars reference
Enums reference
Additional reference guides
CLI reference
SQL Connect configuration file reference
IAM configuration for SQL Connect projects
Common Expression Language (CEL) reference
Cloud Audit Logging reference
Cloud Firestore
Introduction
Cloud Firestore editions
Overview
Firestore Native mode in Standard and Enterprise editions
Standard edition
Discover
Overview of Core operations
Understand Firestore Standard edition
Compare Cloud Firestore and Realtime Database
Data model
Data types
SDKs and client libraries
Index types
Database locations
Data bundles
Get started with Core operations
Get started with mobile and web SDKs
Get started with server client libraries
Manage databases
Manage data
Add data
Structure data
