Add Firebase to your JavaScript project | Firebase for web platforms

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Documentation
Firebase for web platforms

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
Firebase Studio

Build and ship full-stack AI-infused apps right from your browser.
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.

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.

Data 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.

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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.

Reference Samples

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Fundamentals
Get started with Firebase
- Add Firebase to an app
- Add Firebase to a game
- Add Firebase to a server
- Set up projects programmatically
- Use Firebase with existing Cloud project
Manage your Firebase projects
- Understand Firebase projects
- Set up development workflows
- Configure multiple projects
- Understand billing
- Learn about API keys for Firebase
- Learn about locations for products & resources
- Export project data to BigQuery
- Manage Firebase installations
- Import segments
- Manage projects programmatically
- Use the REST API
- Use Terraform
- Use the Admin SDK
- Manage project access (IAM)
- Overview
- Roles
  - Overview
  - Owner, Editor, Viewer roles
  - Firebase predefined roles
    Overview
    Firebase-level roles
    Product-category roles
    Product-level roles
  - Custom roles
- Permissions
Platforms and frameworks