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Firebase

Google's app development platform with NoSQL databases, auth, hosting, functions and mobile tooling.

Free plan + paidBackend and database platforms
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About Firebase

Firebase is Google's backend platform for web and mobile apps. Its best-known pieces are Cloud Firestore and the older Realtime Database, both NoSQL stores that sync data to clients in real time and work offline on mobile. Around them sit Authentication, Cloud Storage, Cloud Functions, Hosting and App Hosting, plus mobile-focused services such as Crashlytics, Cloud Messaging, Remote Config and A/B Testing. Firebase SQL Connect (formerly Data Connect) adds a managed PostgreSQL option for teams that want relational data. The SDKs for Android, iOS, Flutter and the web are mature, which is why it remains a default for mobile developers. The trade-offs are lock-in to Google Cloud and a query model that can force data duplication. Pricing has two plans: the no-cost Spark plan with fixed quotas, and the pay-as-you-go Blaze plan, which unlocks more products and bills by usage, so costs can rise sharply with traffic. Everything is configured in a web console and the Firebase CLI.

Best for: Mobile and web teams who want realtime sync, auth and push messaging from one vendor.

Pros and cons

What works

  • Mature SDKs for Android, iOS, Flutter and web
  • Realtime sync and offline support built into the client libraries
  • Wide set of mobile services such as crash reporting and push messaging

Why people leave

  • Ties your app closely to Google Cloud
  • NoSQL query limits often force data duplication
  • Pay-as-you-go bills can spike with heavy reads

Top Firebase alternatives

See all 9
  1. 1Supabase logo
    Supabase

    Relational Postgres instead of NoSQL, open source, and a similar all-in-one dashboard.

    66.5
  2. 2Appwrite logo
    Appwrite

    Open-source Firebase-style backend you can self-host, with SDKs for Flutter and mobile.

    62.6
  3. 3AWS Amplify logo
    AWS Amplify

    The AWS equivalent if your organisation already runs on Amazon Web Services.

    59.6
  4. 4Convex logo
    Convex

    Reactive queries that update clients automatically, written in TypeScript, without NoSQL modelling pain.

    57.2
  5. 5PocketBase logo
    PocketBase

    Free self-hosted backend with realtime subscriptions in a single binary.

    55.3

Why people left Firebase

In reviewers' own words, from reviews of the apps they moved to. These are their opinions, not ours.

No switching stories yet. If you moved away from Firebase, review the app you switched to and tell us why.

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Firebase: common questions

Is Firebase free?

Firebase has a free plan and paid plans. Free plan: Spark plan (no-cost) (checked on Firebase's own site).

Is Firebase open source?

No, Firebase is not open source. Open-source alternatives include Supabase, Appwrite and Convex.

What platforms does Firebase run on?

Firebase is available for Web, iOS and Android.

What are the best alternatives to Firebase?

The highest-ranked Firebase alternatives right now are Supabase, Appwrite and AWS Amplify. See the full ranked list for pricing, platforms and verified facts.

See all 9 Firebase alternatives