Alternatives

Products that do what Realtime Messaging API in Open Source Firebase Alternative does

1. 1OS
   Open-Source Firebase Alternative Announces Realtime API▲11

   2021 · github.com

2. 2OS
   Open-source conversational platform and unified messaging APIs▲103

   2021 · airy.co

3. 3NO
   Nhost – Open source Firebase alternative with GraphQL▲210

   2020 · nhost.io

4. 4GS
   GUN Starter App Boilerplate – An Easy Open Source Firebase Replacement▲89

   2016 · github.com

5. 5CS
   Client side, shareable, text2speech messages▲143

   2012 · lalo.li

6. 6OS
   Open Source alternative to services like Intercom.io and Smooch▲163

   2017 · github.com

7. 7OS
   Open Source iOS Client for HN's Firebase API▲8

   2016 · github.com

8. 8
   Node.js Messenger▲140

   A small alternative to Slack

   2017

9. 9
   Incubate▲105

   Time-delay messaging app

   2015

10. 10RS
    Realtime Server-Sent Events in Go▲118

    2015 · sse.getgin.io

11. 11
    Chat'Inn▲69

    Miminal, Clean and Realtime Global Chat Application

    2022

12. 12AN
    A Node.js open source library to send transactional notifications▲84

    2017 · github.com

13. 13OS
    Open source realtime IoT platform▲16

    2016 · github.com

14. 14PA
    Pushpin – A new way to build realtime HTTP and WebSocket services▲114

    2015 · pushpin.org

15. 15AS
    A serverless chat backend – built on Firebase Cloud Functions▲15

    2018 · github.com

16. 16MA
    Messaging App▲12

    2020 · ironnotice.com

17. 17
    HiveFlux + Slack▲93

    Real-time task management meets real-time communication

    2015

18. 18FA
    Free alternative to intercom.io live messaging▲20

    2016 · crisp.im

19. 19SD
    Super Debugger, a realtime messaging iOS Debugger tool▲75

    2013 · shopify.github.com

20. 20AM
    A minimal setup for React/ES6 sites with a Firebase back end▲59

    2016 · github.com

21. 21MJ
    Msngr.js, a messaging library for JavaScript▲32

    2015 · github.com

22. 22BA
    Build an open-source Android messaging app in 5 minutes▲12

    2015 · juliangarritano.github.io

23. 23OS
    Open-source TypeScript SDK for sending and operating iMessages▲9

    Oct 2025 · github.com

24. 24SM
    Simple messaging solution for apps▲5

    2015 · jiver.io

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