Life & fun · alternatives · 2026

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Poppy I/O, a system for sending data between web apps client side launched in 2022; newer entries below may have overtaken it.

1. 1
   HTTP Prompt▲128

   An interactive command-line HTTP client

   2016 · github.com · its alternatives →

2. 2
   Helo▲103

   An independent email API from former Postmark folks

   23d ago · helohq.com · its alternatives →

3. 3
   bipio▲76

   A Personal API for Email and Web Apps

   2014 · bip.io · its alternatives →

4. 4
   Apache Weex▲127

   A framework for building mobile cross-platform UIs

   2017 · incubator.apache.org · its alternatives →

5. 5FM
   Flute – my attempt at a better email API▲40

   2018 · flutemail.com · its alternatives →

6. 6G
   GotEmail▲63

   A fast, native Mac mail app for all your inboxes

   3d ago · gotemail.com · its alternatives →

7. 7SA
   Simple app-to-app messaging with a hosted server and common interface▲6

   2014 · dropfrog.io · its alternatives →

8. 8AW
   A web-browser to web-browser file sharing app (uses WebSockets, no DB)▲9

   2020 · easy-file-share.herokuapp.com · its alternatives →

9. 9BA
   Balto, an API to Send iMessages▲6

   2020 · balto.withterra.com · its alternatives →

10. 10SA
    SendCatch – A quick, easy way to transfer files between devices▲5

    2017 · sendcatch.com · its alternatives →

11. 11WA
    Whistle, a different way to build interactive web apps in Elixir▲7

    2018 · moboudra.com · its alternatives →

12. 12BT
    BizzBuzzer: Two-Way communication from the web to any mobile phone▲9

    2016 · bizzbuzzer.com · its alternatives →

13. 13AB
    Alloy – Boilerplate for building web applications with Go▲7

    2017 · growthmetrics.io · its alternatives →

14. 14SM
    Simple messaging solution for apps▲5

    2015 · jiver.io · its alternatives →

15. 15MA
    MyPastes, a quick way to share text b/t devices & people (via MHacks)▲8

    2013 · mypast.es · its alternatives →

16. 16
    Min Slack – A Minimal Slack Client in a Chrome Extension Popup▲7

    2015 · chrome.google.com · its alternatives →

17. 17
    Poste.io – free modern Docker email server with web administration▲5

    2015 · hub.docker.com · its alternatives →

18. 18TA
    TinySSE, an SSE server programmable with Lua▲5

    2025 · tinysse.com · its alternatives →

19. 19PA
    Postways, a Message Management System for Transactional Messages▲5

    2016 · postways.com · its alternatives →

20. 20OA
    Outkit – an abstraction layer for outbound messaging▲7

    2018 · outkit.io · its alternatives →

21. 21
    Web Agent Memory Protocol (WAMP) – Building Shared Memory for the Web▲5

    2025 · web-agent-memory.github.io · its alternatives →

22. 22CP
    Cross platform messaging plugin▲5

    2016 · cloudilly.com · its alternatives →

23. 23VM
    Volatile messaging (self hosted and open source)▲5

    2014 · volatile-msg.herokuapp.com · its alternatives →

24. 24
    Echo▲7

    A fast and unfancy micro web framework for Go

    2016 · labstack.com · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →