Top 4 Erlang Messaging Projects

emqx

7 13,194 10.0 Erlang

The most scalable open-source MQTT broker for IoT, IIoT, and connected vehicles

Project mention: Simplest Guide to DIY Your Own LLM Toy in 2024 | dev.to | 2024-04-02

EMQX (optional): Open-source MQTT broker for IoT, IIoT, and connected vehicles. Used for managing your toys.

ejabberd

3 5,916 9.6 Erlang

Robust, Ubiquitous and Massively Scalable Messaging Platform (XMPP, MQTT, SIP Server)
WorkOS

workos.com sponsored

The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.
vernemq

5 3,146 8.6 Erlang

A distributed MQTT message broker based on Erlang/OTP. Built for high quality & Industrial use cases. The VerneMQ mission is active & the project maintained. Thank you for your support!

Project mention: New scalable, fault-tolerant, and efficient open-source MQTT broker | news.ycombinator.com | 2023-12-18

Shameless plug since i'm a contributor but VerneMQ [1] is a pretty programmable one. You have options from using webhooks to writting your plugins in Lua or Erlang/Elixir.
* https://github.com/vernemq/vernemq

MongooseIM

1 1,599 9.8 Erlang

MongooseIM is Erlang Solutions' robust, scalable and efficient XMPP server, aimed at large installations. Specifically designed for enterprise purposes, it is fault-tolerant and can utilise the resources of multiple clustered machines.

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).