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Open source alternatives to Supabase[012]

Supabase provides a hosted Postgres backend with auth, instant REST and realtime APIs, file storage and edge functions. Below are 12 self-hostable open source alternatives, ranked by GitHub popularity.

// DEVELOPER TOOLS№ 001
PocketBase

PocketBase

GO

Open Source backend in 1 file

★ STARS

58.2k

⑂ FORKS

3.4k

OPEN PROJECT→
// DEVELOPER TOOLS№ 002
Appwrite

Appwrite

TYPESCRIPT

Your backend, minus the hassle

★ STARS

56.0k

⑂ FORKS

5.3k

OPEN PROJECT→
// AI & ML№ 003
Milvus

Milvus

★ FEATUREDGO

Milvus is a high-performance, cloud-native vector database built for scalable vector ANN search

★ STARS

44.2k

⑂ FORKS

4.0k

OPEN PROJECT→
// AI & ML№ 004
Qdrant

Qdrant

★ FEATUREDRUST

High-performance, massive-scale Vector Database and Vector Search Engine for the next generation of AI. Also available in the cloud

★ STARS

31.1k

⑂ FORKS

2.2k

OPEN PROJECT→
// AI & ML№ 005
Chroma

Chroma

RUST

Search infrastructure for AI

★ STARS

27.9k

⑂ FORKS

2.2k

OPEN PROJECT→
// DATABASE№ 006
Turso

Turso

C

The Open Contribution Fork of SQLite

★ STARS

16.7k

⑂ FORKS

486

OPEN PROJECT→
// AI & ML№ 007
Weaviate

Weaviate

GO

Weaviate is an open-source vector database that stores both objects and vectors, allowing for the combination of vector search with structured filtering with the fault tolerance and scalability of a cloud-native database​.

★ STARS

16.1k

⑂ FORKS

1.3k

OPEN PROJECT→
// AUTH & SECURITY№ 008
Zitadel

Zitadel

GO

Identity infrastructure, simplified for you.

★ STARS

13.7k

⑂ FORKS

1.1k

OPEN PROJECT→
// DATABASE№ 009
Encore

Encore

GO

Open source framework for building robust type-safe distributed systems with declarative infrastructure

★ STARS

11.9k

⑂ FORKS

573

OPEN PROJECT→
// AI & ML№ 010
Convex

Convex

TYPESCRIPT

The open-source reactive database for app developers

★ STARS

11.5k

⑂ FORKS

706

OPEN PROJECT→
// DATABASE№ 011
Instant

Instant

TYPESCRIPT

Instant is the best backend for AI-coded apps. You get auth, permissions, storage, presence, and streams — everything you need to ship apps your users will love.

★ STARS

10.2k

⑂ FORKS

351

OPEN PROJECT→
// DATABASE№ 012
NHost

NHost

TYPESCRIPT

The Open Source Firebase Alternative with GraphQL.

★ STARS

9.2k

⑂ FORKS

571

OPEN PROJECT→

// EDITOR'S TAKE

NHost is the nearest match on architecture, pairing Postgres with auth, storage and generated APIs, while Appwrite covers the same surface with its own datastore and a more polished console. PocketBase trades Postgres for a single SQLite binary you can run on a small VPS, which is a genuine win for side projects and a genuine ceiling for write-heavy ones.

// FREQUENTLY ASKED

What is the best open source Supabase alternative?

PocketBase is the most popular open source Supabase alternative by GitHub stars (58,190 stars). The other 11 options are ranked above.

Are these Supabase alternatives self-hostable?

Yes — every project listed here is open source and runs on your own infrastructure. Click into a project to see its license, stars, language, and current health status.

Are they free?

All projects shown are free and open source. Check each project's license page for the terms — most are MIT, Apache 2.0, or AGPL.

// PART OF THESE COLLECTIONS