Nhost is a managed backend-as-a-service providing hosted PostgreSQL, auto-generated GraphQL/REST APIs, authentication, file storage, serverless functions, and developer tools (CLI, dashboard, CI/CD and observability) for building and deploying web and mobile apps.
Supabase is an open source Postgres development platform providing authentication, auto-generated REST/GraphQL APIs, realtime subscriptions, edge functions, file storage, and vector embeddings.
108.4k stars13.7k forksApache-2.0last commit Actively maintained
Open-source Go backend providing embedded SQLite, realtime (SSE) subscriptions, auth (JWT/OAuth2), file storage, admin UI and REST-style APIs for web and mobile apps.
60.8k stars3.7k forksMITlast commit Actively maintained
Appwrite is an open-source backend-as-a-service for building web and mobile apps with authentication, databases, storage, functions, realtime APIs, and messaging.
57.1k stars5.7k forksBSD-3-Clauselast commit Actively maintained
Directus turns any SQL database into a headless CMS with an admin app, role-based access control, and instant REST and GraphQL APIs for custom applications.
37.6k stars4.9k forkslast commit Actively maintained
Hasura is an open-source GraphQL engine that instantly exposes realtime, secure GraphQL APIs over databases and other data sources with fine-grained access control.
32.1k stars3k forksApache-2.0last commit Actively maintained
Budibase is an open-source low-code platform to build internal tools, portals, forms, and approval workflows with integrations to databases and APIs.
28.2k stars2.2k forkslast commit Actively maintained
TrailBase is a fast, single-executable Firebase alternative with type-safe REST and realtime APIs, built-in auth, admin UI, WebAssembly extensibility, and SQLite storage.
5.6k stars190 forksOSL-3.0last commit Actively maintained
bknd is a lightweight Firebase/Supabase alternative that provides a modular backend with REST API, admin UI, auth, media, and workflows, deployable across many JS runtimes.
3.8k stars146 forksApache-2.0last commit Actively maintained
MongooseIM is an open-source Erlang-based XMPP server designed for large-scale messaging, offering multi-tenant deployment, REST/GraphQL APIs, push, and robust observability.
1.8k stars440 forkslast commit Actively maintained
Para is an open-source, Java-based multitenant backend framework providing a RESTful JSON API, full-text search, distributed caching, and flexible authentication for web, mobile, IoT and prototype apps.
573 stars155 forksApache-2.0last commit Actively maintained
Every option on this page is open source and free to run on your own hardware, so you own the data and there is no subscription to cancel. 10 of 10 shipped a commit in the last six months. Licences in this list: Apache-2.0, MIT, BSD-3-Clause, OSL-3.0. In exchange you take on hosting, backups and updates yourself.
Browse everything in Backend-as-a-Service (BaaS).
