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/.

high performance dotnet core socket tcp communication components, support TLS, HTTP, HTTPS, WebSocket, RPC, Redis protocols, custom protocols and 1M connections problem solution

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

Provide useful sensors and services from your workstation to Home Assistant.

GUI for Zigbee2Mqtt running in docker and HASS.IO

Lightweight message bus interface for .NET (pub/sub and request-response) with transport plugins for popular message brokers.

SAEA.Socket is a high-performance IOCP framework TCP based on dotnet standard 2.0; Src contains its application test scenarios, such as websocket,rpc, redis driver, MVC WebAPI, lightweight message server, ultra large file transmission, etc. SAEA.Socket是一个高性能IOCP框架的 TCP，基于dotnet standard 2.0；Src中含有其应用测试场景，例如websocket、rpc、redis驱动、MVC WebAPI、轻量级消息服…

Make your windows 10 computer IOT friendly

Cross platform MQTT client for MQTT debugging and message inspection. It is based on the .NET library MQTTnet.

工业智能网关，基于.net core3.1的跨平台物联网网关。支持不同设备驱动(PLC、CNC、数据库、串口设备、上位机、OPC UA、MQTT）具备二次开发驱动的能力实现与Thingsboard进行数据通讯。同时支持多资源配置化管理，MQTT、MYSQL、WEBHOOK等多种类型，实现数据的快速推送，提供简单的驱动开发接口。

M2MQTT for Unity

最流行的物联网通信协议MQTT，包括客户端、服务端和Web管理平台

使用MQTT协议的代理服务器(broker)及客户端(client)示例，包含WPF、Web、Unity3D等多种平台的示例代码

ThingsGateway 是基于Net6/7/8的跨平台边缘采集网关，提供底层PLC通讯库，通讯调试软件等。

MqttFx is a mqtt v3.1.1 client using DotNetty

Fully featured .NET library in C# to build MTConnect Agent, Adapter, and Client Applications. Pre-built Agents with Windows Installers. Support for Windows and Linux. Supports MTConnect Versions up to 2.2. Supports .NET Framework 4.6.1 up to .NET 7

基于C#、WPF、Prism、MaterialDesign、HandyControl开发的通讯调试工具,，支持Modbus Rtu调试、Mqtt调试

FIAT (uconnect) Home Assistant Addon 🚗

SparkplugNet is a library to use the Sparkplug industrial IoT (IIoT) standard in .Net. It uses MQTTnet in the background.