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

Eclipse Mosquitto - An open source MQTT broker

Algorithmic trading and quantitative trading open source platform to develop trading robots (stock markets, forex, crypto, bitcoins, and options).

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

MQTTnet is a high performance .NET library for MQTT based communication. It provides a MQTT client and a MQTT server (broker). The implementation is based on the documentation from http://mqtt.org/.

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!

Java MQTT lightweight broker

Crossbar.io - WAMP application router

Xinfra Monitor monitors the availability of Kafka clusters by producing synthetic workloads using end-to-end pipelines to obtain derived vital statistics - E2E latency, service produce/consume availability, offsets commit availability & latency, message loss rate and more.

📡 BroadcastChannel to send data between different browser-tabs or nodejs-processes 📡 + LeaderElection over the channels https://pubkey.github.io/broadcast-channel/

High performance mqtt broker

HiveMQ CE is a Java-based open source MQTT broker that fully supports MQTT 3.x and MQTT 5. It is the foundation of the HiveMQ Enterprise Connectivity and Messaging Platform

High-Performance MQTT Server

IoTSharp is an open-source IoT platform for data collection, processing, visualization, and device management.

Mirror of Apache ActiveMQ Artemis

Alibaba RSocket Broker: Mesh, Streaming & IoT

Backtesting and Trading Bots Made Easy for Crypto, Stocks, Options, Futures, FOREX and more

Unofficial APIs for Webull.

A simple high-performance Redis message queue for Node.js.

Open-source, scalable, and fault-tolerant MQTT broker able to handle 4M+ concurrent client connections, supporting at least 3M messages per second throughput per single cluster node with low latency delivery. The cluster mode supports more than 100M concurrently connected clients.