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Backend-as-a-Service

Backend platforms with auth, database, storage, and serverless functions

2 open source tools·1 proprietary tools

Open Source Alternatives

Free and open source tools in this category.

Supabase

Open source Firebase alternative with Postgres, auth, and edge functions

101kApache-2.0Self-hostable

TypeScriptElixirGobackendpostgres

Appwrite

Open source BaaS — Firebase alternative with auth, database, storage

55.8kBSD-3-ClauseSelf-hostable

TypeScriptPHPDartbackendauth

Proprietary Tools

Commercial software in this category. Click to see open source alternatives.

Firebase

Google backend platform for web and mobile apps

freemiumfrom Pay as you go3 alternatives

All articles

Best Open Source BaaS Platforms in 2026

Supabase, Appwrite, PocketBase, and Directus vs Firebase: compare open source backend-as-a-service platforms on database, auth, storage, and cost. March 2026.

Mar 8, 2026baasbackend

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