The Postgres development platform. Supabase gives you a dedicated Postgres database to build your web, mobile, and AI applications.
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Open Source Alternative Guide
Best Open Source Alternatives to Firebase
Looking for a free, self-hosted, and privacy-first replacement for Firebase? These community-verified open source projects replace google’s proprietary backend-as-a-service (baas) without recurring per-seat fees or cloud vendor lock-in.
Proprietary Pricing:
Usage-based pricing with unpredictable bandwidth markups
Open Source Cost:
$0 (Self-Hosted)
Tracked Stars:
★ 266.8K
Alternative Projects:
15 verified repos
Why Engineering Teams Are Replacing Firebase
✓ Zero Subscription Invoices
Deploy across 5 or 5,000 developers with zero incremental per-seat charges or usage surcharges.
✓ Full Data Sovereignty
No third-party cloud data scanning, closed training, or overseas data transfer compliance risks.
✓ Code Ownership
Inspect the architecture, add internal integrations, build custom plugins, and never worry about discontinued features.
Top Rated Firebase Alternatives (15)
Ranked by verified GitHub stars & growth
Open Source realtime backend in 1 file
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Appwrite® - complete cloud infrastructure for your web, mobile and AI apps. Including Auth, Databases, Storage, Functions, Messaging, Hosting, Realtime and more
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Free implementation of Play Services
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Collection of sample apps showcasing popular use cases using Cloud Functions for Firebase
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Firebase Quickstart Samples for iOS
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Unofficial Firebase Admin SDK for PHP
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Measure helps mobile teams monitor and fix crashes, ANRs, bugs, and performance issues. The open source alternative to Firebase Crashlytics.
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Firebase Admin Go SDK
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Batteries-included backend that works with any stack.
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Firebase Admin Java SDK
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Cypress plugin and custom commands for testing Firebase projects
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Combine wrapper on Google's iOS Firebase library.
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Scalable Nx monorepo starter for Angular and NestJS apps with Firebase, Electron, Capacitor, GraphQL, testing, and CI automation.
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Android source code of the most popular Paleontological mobile app in the world! Programming sandbox.
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Frequently Asked Questions
What is the most popular open source alternative to Firebase?
The leading open source project in this space is supabase/supabase with over 110,782 GitHub stars. It provides active developer community support, extensive documentation, and transparent licensing.
Are these open source alternatives free to use in commercial teams?
Yes. The vast majority of these repositories are licensed under permissive open-source licenses such as MIT, Apache 2.0, or AGPL, allowing developers to deploy and self-host them within commercial companies with zero subscription costs.
How do I deploy and self-host these alternatives?
Most top alternatives provide pre-built Docker containers and Docker Compose templates, enabling 1-command deployment onto a private VPS (Hostinger, DigitalOcean, Hetzner) or enterprise Kubernetes clusters.
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