Best Self-hosted Backend-as-a-Service (BaaS) Tools in 2026

Supabase

Open-source Firebase alternative for modern app development

Stars
101,439
Forks
12,181
Last commit
15 hours ago

A powerful, scalable backend platform offering real-time databases, authentication, storage, and serverless functions for rapid development.

Open Source Alternative to:

Firebase

PocketBase

Open-source backend in a single file

Stars
57,975
Forks
3,330
Last commit
2 days ago

A lightweight, self-hosted backend solution with real-time database, authentication, and file storage capabilities.

Open Source Alternative to:

Supabase

Appwrite

Open-source backend platform for rapid app development

Stars
55,879
Forks
5,288
Last commit
12 hours ago

Open-source development platform with built-in backend infrastructure, web hosting, and security features. Scale applications using your preferred programming languages.

Open Source Alternative to:

Supabase

Directus

Open-source data platform for effortless content management

Stars
34,915
Forks
4,729
Last commit
19 hours ago

A versatile headless CMS and API engine that simplifies data management, content creation, and application development.

Open Source Alternative to:

WordPress

Convex

Build full-stack apps with TypeScript and real-time sync

Stars
11,398
Forks
693
Last commit
16 hours ago

Open-source reactive database that keeps your web and mobile apps in sync. Write everything in TypeScript with built-in auth, cron jobs, and AI integration.

Open Source Alternative to:

Supabase

Hatchet

Effortless CI/CD for modern cloud applications

Stars
6,984
Forks
353
Last commit
1 day ago

Durable orchestration platform for managing AI agents, scheduling background tasks, and running mission-critical workflows.

Open Source Alternative to:

Make

undb

Local-first, offline-first no-code database platform

Stars
2,933
Forks
147
Last commit
10 months ago

Build and manage custom databases with ease, create type-safe APIs, and develop applications quickly

Open Source Alternative to:

Airtable

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Supabase

Open-source Firebase alternative for modern app development

Stars
101,439
Forks
12,181
Last commit
15 hours ago

A powerful, scalable backend platform offering real-time databases, authentication, storage, and serverless functions for rapid development.

Open Source Alternative to:

Firebase

PocketBase

Open-source backend in a single file

Stars
57,975
Forks
3,330
Last commit
2 days ago

A lightweight, self-hosted backend solution with real-time database, authentication, and file storage capabilities.

Open Source Alternative to:

Supabase

Appwrite

Open-source backend platform for rapid app development

Stars
55,879
Forks
5,288
Last commit
12 hours ago

Open-source development platform with built-in backend infrastructure, web hosting, and security features. Scale applications using your preferred programming languages.

Open Source Alternative to:

Supabase

Directus

Open-source data platform for effortless content management

Stars
34,915
Forks
4,729
Last commit
19 hours ago

A versatile headless CMS and API engine that simplifies data management, content creation, and application development.

Open Source Alternative to:

WordPress

Convex

Build full-stack apps with TypeScript and real-time sync

Stars
11,398
Forks
693
Last commit
16 hours ago

Open-source reactive database that keeps your web and mobile apps in sync. Write everything in TypeScript with built-in auth, cron jobs, and AI integration.

Open Source Alternative to:

Supabase

Hatchet

Effortless CI/CD for modern cloud applications

Stars
6,984
Forks
353
Last commit
1 day ago

Durable orchestration platform for managing AI agents, scheduling background tasks, and running mission-critical workflows.

Open Source Alternative to:

Make

undb

Local-first, offline-first no-code database platform

Stars
2,933
Forks
147
Last commit
10 months ago

Build and manage custom databases with ease, create type-safe APIs, and develop applications quickly

Open Source Alternative to:

Airtable

Self-hosted Backend-as-a-Service (BaaS) Tools

A curated collection of the best self-hosted cloud-based platforms providing backend services like databases, authentication, and storage.