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

Flexible Datasync is described as 'Flexible DataSync is a BAAS with a complete client framework. Developers can build real-time applications and communication services and deploy them easily' and is a backend as a service. There are more than 50 alternatives to Flexible Datasync for a variety of platforms, including Web-based, Windows, Linux, Mac and Android apps. The best Flexible Datasync alternative is Supabase, which is both free and Open Source. Other great apps like Flexible Datasync are Firebase, Meteor, remoteStorage and Etebase.
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.


Meteor is a set of new technologies for building top-quality web apps in a fraction of the time. It is built around Smart Packages: little bundles of code that can run on a client, inside a cloud service, or both, and that can manage their lifetime inside the modern distributed...

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.

Feathers is a real-time, micro-service web framework for NodeJS that gives you control over your data via RESTful resources, sockets and flexible plug-ins.
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.



Ridiculously simple data sharing for the Internet of Things.
It's like X for social machines. If your product, device, machine, gadget or thing can connect to the Internet, it can use dweet.io to easily publish and subscribe to data. .

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.




Nakama is an open-source distributed social and realtime server for games and apps. It has a large set of services for users, storage, and realtime communication; as well as specialized APIs like realtime multiplayer, groups/guilds, and chat.


