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

Boxcar is described as 'Universal Push Notification Platform' and is an website. There are more than 25 alternatives to Boxcar, not only websites but also apps for a variety of platforms, including Android, iPhone, Windows and Android Tablet apps. The best Boxcar alternative is Supabase, which is both free and Open Source. Other great sites and apps similar to Boxcar are Firebase, Gotify, Pushover 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.


Gotify is a service for sending (via a REST-API) and receiving (via browser/android app) push notifications.



Pushover is a simple push notification service that integrates easily into web apps, network monitoring systems, shell scripts, and anything else that needs to send alerts to your mobile devices.

Etebase makes it easy to build end-to-end encrypted applications by taking care of the encryption and its related challenges.
Instant is for building real-time and offline-enabled applications. We make it easy to build collaborative products like Notion or Figma.
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.




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.




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.



