Open Source Alternatives

Alternatives to Firebase

Google's app development platform with auth, database, hosting, and analytics.

2 drop-in replacements1 building block

Firebase is a trademark of its respective owner.

Updated Apr 2026

Quick Compare

	Appwrite	Supabase
Score	28	12
Overlap	80%	78%
Migration	moderate	moderate
License	BSD 3-Clause "New" or "Revised" License	Apache License 2.0
Best for	Small teams	Small teams

Drop-in Replacements

Ranked by Discovery Score

Appwrite

2880% coverage

Complete cloud infrastructure for web, mobile, and AI apps

Appwrite gives you auth, database, storage, functions, and messaging as a single self-hosted backend platform, so you don't have to build it all from scratch. It's an open source Firebase: one service instead of stitching together five.

55.5k ★+228/wkTypeScriptBSD 3-Clause "New" or "Revised" License

Supabase

1278% coverage

The Postgres development platform with auth, storage, and realtime

Supabase gives you Postgres with auth, file storage, realtime subscriptions, and edge functions built in. Basically, Firebase but with a real database you actually own and can query with SQL.

100.3k ★+487/wkTypeScriptApache License 2.0

Building Blocks

Firebase is a platform — it bundles multiple capabilities into one subscription. These tools each cover one piece. Teams often assemble 2–3 of them instead of paying for the full suite.