mqtt

Wifi & BLE driven passenger flow metering with cheap ESP32 boards

Android OBD diagnostics with any ELM327 adapter

Crossbar.io - WAMP application router

Barebone MQTT broker that can run on any stream server, the node way

The fully compliant, embeddable high-performance Go MQTT v5 server for IoT, smarthome, and pubsub

Extend cloud computing, data and service seamlessly to edge devices.

100% open-source IoT Platform - Integrate your devices, add intelligence, build custom apps

High-performance multi-data-source database client — ~30MB, AI & MCP ready, zero Electron bloat. | 高性能多数据源数据库客户端：约 30MB，AI 与 MCP 就绪，告别 Electron 膨胀。

Communication infrastructure for the AI era — one binary, one broker, one storage layer, any protocol

后端 （Java Golang）全栈知识架构体系总结

OwnTracks Android App

MQTT 5.0 client library for iOS and macOS written in Swift

🦎 A lightweight, multi-protocol gateway for event-driven applications and AI agents. Expose and govern Kafka, MQTT, APIs, and MCP through one high-performance engine with shared routing, security, schema, and observability.

Paho MQTT C client library for embedded systems. Paho is an Eclipse IoT project (https://iot.eclipse.org/)

docker stack for getting started on IOT on the Raspberry PI

ThingsGateway is a cross-platform, high-performance gateway for edge data acquisition and IoT connectivity. Developed with .NET 8, it offers a suite of powerful tools, including advanced PLC communication libraries and debugging software.

An ESP32 based node for gathering indoor positioning and transmitting to mqtt

Unified UI and API for processing and training images for facial recognition.

Kubernetes-native IoT gateway

Open source industrial connectivity server

High performance mqtt broker

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

💡 ESP8266 framework for Homie, a lightweight MQTT convention for the IoT

⭕ N2O: Distributed WebSocket Application Server ISO 20922

TouchSocket is an integrated .NET networking framework that includes modules for socket, TCP, UDP, SSL, named pipes, HTTP, WebSocket, RPC, and more. It offers a one-stop solution for TCP packet issues and enables quick implementation of custom data message parsing using protocol templates.

Full featured Z-Wave Control Panel UI and MQTT gateway. Built using Nodejs, and Vue/Vuetify

即时通讯，聊天，野火IM iOS客户端

artisan scope: the world's most trusted roasting software

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