The open source Firebase alternative. Supabase adds realtime and restful APIs to Postgres without a single line of code.
Cost / License
- Freemium
- Open Source (Apache-2.0)
Application type
Platforms
- Online
- Self-Hosted
United States

Apps similar to Pubnub include Supabase, which is open source with a free version. Other options are Firebase, GUN, AWS Amplify and dweet.io. You're spoiled for choice with Backend as a Service like Pubnub: we list more than 50 alternatives for the web, Windows, Mac, Android and iPhone.
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.


GUN is an open source, realtime, graph database written entirely in JavaScript and built using peer-to-peer algorithms, making it surprisingly fault tolerant and easy to get started with.

AWS Amplify is a complete solution that lets frontend web and mobile developers easily build, ship, and host full-stack applications on AWS, with the flexibility to leverage the breadth of AWS services as use cases evolve. No cloud expertise needed.




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.




Instant is for building real-time and offline-enabled applications. We make it easy to build collaborative products like Notion or Figma.
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.
Scaledrone is a realtime messaging service and platform. Send live updates, create chatrooms and collaborative tools.

Notifico is a self-hosted, open-source notification server that delivers real-time notifications to various clients via email, SMS, messengers and other means of communication.
Expressive middleware for node.js using generators via co to make web applications and APIs more enjoyable to write. Koa's middleware flow in a stack-like manner allowing you to perform actions downstream, then filter and manipulate the response upstream.