Best open-source backend
Open-source Firebase alternatives — auth, databases, storage, and APIs in a single self-hostable stack.
Quick answer
Top open-source picks in Backend & BaaS are Supabase, Appwrite, PocketBase, and Better Auth. Compare all 4 below by features, license, and GitHub activity.
4 tools
Appwrite
Alternative to Firebase, Auth0
A complete backend, self-hosted in minutes.
Open SourceBSD 3-Clause47K
