Firebase pricing

Firebase has 2 plans, with base fees from $0 to $0 a month. Prices were checked against Firebase's pricing page on 25 October 2026.

Category: Database, Sign-in. Source: https://firebase.google.com/pricing.

Plans

Plan	Base fee	Includes
Spark (free)	$0/mo	50,000 Auth monthly active users, 1 Firestore storage, Commercial use allowed, Realtime subscriptions, Email and password sign-in, Google sign-in, Sign in with Apple, Magic links
Blaze (pay as you go)	$0/mo	50,000 Auth monthly active users, 1 Firestore storage, Commercial use allowed, More than one team member, Realtime subscriptions, Daily backups, Email and password sign-in, Google sign-in

Firebase cost as you grow

Monthly cost for a typical B2B SaaS app, from the cost engine.

Users	Plan	Monthly cost
1,000 users	Spark (free)	$0/mo
10,000 users	Blaze (pay as you go)	$0.60/mo
50,000 users	Blaze (pay as you go)	$3.60/mo
100,000 users	Blaze (pay as you go)	$282.35/mo

Lock-in

High: Firestore's data model and security rules don't port directly to SQL databases.

Set up Firebase

Packages: firebase, firebase-admin. Environment variables: NEXT_PUBLIC_FIREBASE_API_KEY, NEXT_PUBLIC_FIREBASE_AUTH_DOMAIN, NEXT_PUBLIC_FIREBASE_PROJECT_ID, NEXT_PUBLIC_FIREBASE_APP_ID, GOOGLE_APPLICATION_CREDENTIALS. Quickstart.

Everything Firebase sells

Product	Free tier	Lowest paid price
Cloud Firestore	Spark: 1 GiB stored, 50K reads, 20K writes and 20K deletes per day	Blaze: Google Cloud Firestore rates after the free quota
Firebase Authentication	50K MAU (50 MAU for SAML/OIDC)	Google Cloud Identity Platform rates past 50K MAU
Cloud Functions for Firebase	2M invocations, 400K GB-seconds and 200K CPU-seconds per month	$0.40 per 1M invocations
Firebase Hosting and Storage	10 GB hosting storage; 360 MB/day downloads	$0.15/GB stored past free; $0.15/GB downloaded

Startups built with Firebase

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Firebase pricing

Plans

Firebase cost as you grow

Lock-in

Set up Firebase

Everything Firebase sells

Startups built with Firebase

Alternatives to Firebase

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