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

Back4App is described as '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' and is a backend as a service in the development category. There are more than 50 alternatives to Back4App for a variety of platforms, including Web-based, Self-Hosted, Windows, Android and iPhone apps. The best Back4App alternative is Supabase, which is both free and Open Source. Other great apps like Back4App are Firebase, bknd.io, Appwrite and Strapi.
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.


Modular visual backend offering integrated database, authentication, media, and workflow management, supports SQLite, Postgres, cloud DBs, AWS S3, flexible deployment across major runtimes, open source, built for universal compatibility and direct control.

Secure open-source backend server for web and mobile developers. Appwrite provides developers with a set of easy-to-use and integrate REST APIs to manage their core backend needs.




Strapi enables developers to build projects faster by providing a customizable API out of the box and giving them the freedom to use their favorite tools. Content teams use Strapi to autonomously manage all types of content and distribute it from one CMS to any channel be it...




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.



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.




RapidStash is a service for rapidly publishing sandbox APIs with just JSON. If you have an idea of what kind of data you want to send and receive but aren’t yet ready to build a backend, just throw some example data in a “stash” and interact with it there.

built.io is raw engineering's proven mobile and web application development platform, designed from the ground up for the enterprise. By powering the entire backend – servers, cloud infrastructure, database, scaling – and delivering built-in enterprise app functionality...
brainCloud is a ready-made, cloud-based back-end in a box for the development of games, apps and things.
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.




Materia is an easy-to-use backend to build all kinds of applications (mobile, web, gaming and more) Materia tooling manages the entire development cycle for building enterprise class backends (database relationships, database synchronization, API management, static file hosting...
