Does Firebase Work With Cloudflare Pages?
Firebase and Cloudflare Pages work together seamlessly—Pages hosts your frontend while Firebase handles backend services, auth, and data.
Quick Facts
How Firebase Works With Cloudflare Pages
Firebase and Cloudflare Pages are complementary rather than integrated. Pages serves your static site or JAMstack frontend globally via Cloudflare's CDN, while Firebase provides the backend—Realtime Database, Firestore, Authentication, Cloud Functions, and Storage. Your Pages site calls Firebase APIs directly from the browser via the Firebase SDK. This is a common architecture: Pages handles build and deployment with frameworks like Next.js, React, or Vue, while Firebase SDK initializes on the client to handle all backend operations. The experience is smooth because both are developer-friendly and Firebase SDKs are optimized for browser environments. One architectural consideration: use Firebase Cloud Functions or callable functions for sensitive operations rather than exposing raw database access. Cloudflare Workers can complement this for lightweight server-side logic (redirects, middleware), but Firebase remains your primary backend. CORS is automatically handled since Firebase is designed for cross-origin requests. Deploy workflows are independent—push to your Git repo for Pages deployment, manage Firebase separately via the CLI or Console.
Best Use Cases
Quick Setup
npm install firebase// src/firebase.ts
import { initializeApp } from 'firebase/app';
import { getAuth } from 'firebase/auth';
import { getFirestore } from 'firebase/firestore';
const firebaseConfig = {
apiKey: import.meta.env.VITE_FIREBASE_API_KEY,
projectId: import.meta.env.VITE_FIREBASE_PROJECT_ID,
authDomain: import.meta.env.VITE_FIREBASE_AUTH_DOMAIN,
databaseURL: import.meta.env.VITE_FIREBASE_DATABASE_URL,
storageBucket: import.meta.env.VITE_FIREBASE_STORAGE_BUCKET,
};
const app = initializeApp(firebaseConfig);
export const auth = getAuth(app);
export const db = getFirestore(app);
// In your component
import { db } from './firebase';
import { collection, getDocs } from 'firebase/firestore';
const docs = await getDocs(collection(db, 'users'));Known Issues & Gotchas
Exposing Firebase config in frontend code is safe (it's meant to be public), but missing security rules allows unauthorized access
Fix: Always configure Firestore and Realtime Database security rules to validate user authentication and data ownership. Use Firebase Auth to manage user identity.
Firebase SDK size can bloat your bundle if you import everything; lazy loading isn't obvious
Fix: Use dynamic imports or tree-shake unused services. Import only what you need: `import { initializeApp } from 'firebase/app'; import { getFirestore } from 'firebase/firestore';`
Pages environment variables aren't automatically available to Firebase—you must configure Firebase separately
Fix: Store Firebase config in your codebase or use wrangler.toml for Workers, not Pages env vars. Firebase config is designed to be public anyway.
Cloudflare's free tier has request limits that don't affect Pages but may bottleneck Worker usage if you add server-side logic
Fix: Use Firebase Cloud Functions for complex backend logic instead of Cloudflare Workers to avoid billing surprises.
Alternatives
- •Vercel + Firebase: Similar JAMstack setup with arguably better Next.js integration, but less global CDN edge performance
- •Supabase + Cloudflare Pages: Open-source Firebase alternative with PostgreSQL backend, same Pages deployment benefits
- •AWS Amplify + CloudFront: Amazon's full-stack offering with more configuration but deeper AWS ecosystem integration
Resources
Related Compatibility Guides
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