The open source Firebase alternative. Supabase adds realtime and restful APIs to Postgres without a single line of code.

subZero is described as 'Turns your PostgreSQL database directly into a GraphQL & RESTful API. The structural constraints and permissions in the database determine the API endpoints and operations' and is a backend as a service in the development category. There are more than 10 alternatives to subZero for a variety of platforms, including Web-based, Self-Hosted, SaaS, Mac and Windows apps. The best subZero alternative is Supabase, which is both free and Open Source. Other great apps like subZero are Firebase, Etebase, InstantDB and ApiOpenStudio.
The open source Firebase alternative. Supabase adds realtime and restful APIs to Postgres without a single line of code.

Firebase, provided by Google, is a backend service and application development platform. It uses AI, cloud infrastructure, and cross-platform SDKs for efficient app development. Firebase offers tools and infrastructure for app creation and business growth.


Instant is for building real-time and offline-enabled applications. We make it easy to build collaborative products like Notion or Figma.
Api Open Studio allows you to quickly create and manage APIs with full business and processing logic and user management, using low-code. As a result, you can save important time and money by dedicating your resources on other tasks, while at the same time maintaining the...
ApyHub offers powerful yet simple-to-use APIs that provide standard data & essential functionalities, helping developers save time and boost efficiency. ApyHub is ideal for developers who are tired of lengthy development cycles and multiple external library integrations.




deepstream.io is a clusterable realtime server that handles persistent tcp and websocket connections. It offers data-sync, pub/sub and request/response. It's available for Linux, Mac and Windows and comes with clients in JS, Java and many others.

Hasura makes data access easy, by instantly composing a GraphQL API that is backed by databases and services so that the developer team (or API consumers) get immediately productive. The nature of GraphQL itself and Hasura’s dynamic approach makes integration and iteration easy.
Low code backend to build modern apps. Back4app accelerate backend development, improves development productivity, reduces time to market, and let you scale applications without managing infrastructure.




Backendless is a complete visual app development platform that offers a fully integration UI Builder, real-time database, robust backend with Codeless logic, team-driven development, and bulletproof security.




RapidAPI lets you easily find and connect to practically any API in the world while also providing the easiest way to track and manage the ones you use, in just one place. No need to search through massive API docs either, RapidAPI's intuitive interface gives developers a...


