Location Tracking / Firmwares for ESP based Devices

• ADSBiq - Authenticated retained-delta aircraft state over MQTT WebSockets for bounded IoT and location-aware integrations.

Tools

• dsh-mqtt (⭐2) - MQTT protocol driver and long-running agent worker gateway for DeepSeek Harness, enabling remote clients to submit, steer, cancel, and observe agent work.

Brokers

• TrailMQ (⭐4) - Self-hosted MQTT broker with policy enforcement and a reviewable record of broker decisions, for regulated and industrial systems.

Tools

• MQTTForge (⭐0) - Test console that builds a broker's topics into a live tree, shows every frame on the wire, and publishes by hand. Desktop app for macOS, Windows and Linux, or a single Docker image.

• RunMQTT MQTT Topic ACL Linter - Browser-based, local-only validator for MQTT topic-filter ACLs that checks wildcard breadth, tenant boundaries, publish/subscribe direction, placeholders, and overlapping rules. Source and method (⭐0).

Tools

• LazyMQTT (⭐2) - A fast, terminal-UI MQTT client written in Rust — inspired by MQTT Explorer, but keyboard-driven and living in your terminal.

Brokers

• Keel MQTT Gateway (⭐5) - Distributed, cloud-native MQTT broker in Go built on mochi-mqtt, using Raft for strongly-consistent session ownership and ACL, with a gossip-backed routing table (Olric).

Visualization, Dashboards / Firmwares for ESP based Devices

• ZigDash - Free, open-source Material 3 MQTT dashboard for Android, built for Zigbee2MQTT with automatic device discovery.

Platforms

• IoT DC3 (⭐963) - Fully open-source, distributed industrial IoT platform built on Spring Cloud, with 28 built-in protocol drivers (including MQTT), AI-powered operations via Spring AI, and microservice architecture. (Docs)

Smart Home Integration Software / Firmwares for ESP based Devices

• she - smart home engine (⭐9) - Scriptable smart home automation engine with AI assistance.

Visualization, Dashboards / Firmwares for ESP based Devices

• Feezal (⭐12) - Dashboard editor powered by Web Components and MQTT.

Rust

• mqtt-typed-client (⭐10) - Type-safe async MQTT client built on rumqttc, with derive macros for typed topics, automatic (de)serialization, and tree-based message routing.

Visualization, Dashboards / Firmwares for ESP based Devices

• mqtt-dashboard (⭐17) - Self-hostable MQTT dashboard/explorer with drag-and-drop panels like cron, button, log and topic browser to help interact and monitor MQTT topics.

Tools

• mqttkit (⭐4) - Elysia-style application framework for MQTT on Bun and TypeScript. Compose broker adapters, ordered middleware, typed topic routes, MQTT 5 RPC, and AsyncAPI 3.0 docs with new MqttApp().use(...).

Platforms

• ForestHub - Edge AI agent platform; its open-source runtime edge-agents (⭐101) orchestrates AI agents on Linux edge gateways with MQTT as a first-class workflow transport, running offline with local SLMs alongside cloud LLMs.

Monitoring / Firmwares for ESP based Devices

• ccusage-mqtt (⭐1) - Publishes Claude Code (Anthropic's AI coding agent) usage telemetry to MQTT with Home Assistant auto-discovery. 15 sensors, mood classifier.

Visualization, Dashboards / Firmwares for ESP based Devices

• awtSCADA (⭐5) - Industrial SCADA/HMI system with MQTT support (plus IEC 61850, OPC UA, Modbus TCP). Runs from a single HTML file in any browser, zero installation. 53 function blocks, 65 graphic elements, real-time trends.

Tools

• homie-home-assistant-discovery (⭐0) - Node.js CLI and library that maps Homie MQTT metadata to Home Assistant MQTT discovery payloads.

Tools

• LabOverWire - Visual diagram editor for designing MQTT topologies, built with Rust (WebAssembly) and TypeScript. Features live in-browser simulation, code generation, and AsyncAPI export.

Smart Home Integration Software / Firmwares for ESP based Devices

• shopsavvy-mqtt (⭐0) - MQTT bridge that publishes product price data with Home Assistant MQTT discovery support.

Rust

• mqtt5 (⭐56) - Complete async MQTT v5.0 client and broker library for Rust with TCP, TLS, WebSocket, and QUIC support.

Tools

• mqttv5 (⭐56) - Unified MQTT v5.0 CLI for publishing, subscribing, running a broker, and benchmarking with multi-transport support.

Smart Home Hardware Interfaces / Firmwares for ESP based Devices

• huABus (⭐8) - Home Assistant application (Add-on) and MQTT bridge for Huawei solar inverters (SUN2000/3000/5000).

Tools

• Mer-cli (⭐16) - A high-performance IoT data generator written in Rust. Supports MQTT, HTTP, and TCP for simulating realistic sensor payloads with Handlebars templates.

Brokers

• Bevywise MQTTRoute - MQTTRoute is an extendable & Scalable MQTT Broker with customizable UI, flexible storage & security options for all IoT / IIoT Implementation.

• Eclipse Amlen (⭐53) - A scalable, secure, easy to use message broker that can be used for IoT, web and mobile use-cases. Open-sourced from IBM MessageSight.

Cloud

• CrystalMQ - Fully Managed Cloud MQTT Broker for large scale deployments.

Tools

• mqttcommander (⭐1) - A console-based MQTT client and commander, especially useful for IoT, Tasmota, and Node-RED setups.

Misc / Firmwares for ESP based Devices

• QuIXI (⭐8) - Bridge between the Ixian decentralized P2P network and MQTT/REST. Enables encrypted peer-to-peer messaging for IoT devices with post-quantum security (ML-KEM + AES-256 + ChaCha20).

Platforms

• Iotellect - Low-code IoT/IIoT platform for industrial automation, SCADA, BMS and remote monitoring. Supports MQTT, OPC-UA, Modbus and 100+ protocols with visual development tools and edge-cloud integration.

Tools

• mockd (⭐144) - Multi-protocol mock server with a built-in MQTT broker supporting QoS 0-2, retained messages, topic patterns, and device simulation for IoT development and testing.

Smart Home Hardware Interfaces / Firmwares for ESP based Devices

• ble-scale-sync (⭐163) - BLE-to-MQTT bridge for smart scales (23 brands) with Home Assistant auto-discovery. Reads weight + impedance, calculates body composition, publishes all 11 metrics with LWT and display precision. Website.

Smart Home Hardware Interfaces / Firmwares for ESP based Devices

• Bambuddy (⭐2.9k) - Self-hosted management tool for Bambu Lab 3D printers using MQTT, with real-time monitoring, scheduling, and Home Assistant integration.

Brokers

• BifroMQ - Java-based high-performance MQTT broker with native multi-tenancy for large-scale IoT.

Python

• aiomqtt (⭐572) - The idiomatic asyncio MQTT client.

Misc / Firmwares for ESP based Devices

• anpr2mqtt - Listen for images on file server, analyze and create Home Assistant entities via MQTT Discovery.

Brokers

• comqtt (⭐1.2k) - A lightweight, high-performance go mqtt server(v3.0|v3.1.1|v5.0) supporting distributed cluster.

• tbmq (⭐755) - Open-source, scalable, fault-tolerant and durable messaging broker for millions of IoT devices.

Tools

• mqtt-studio - A practical MQTT Tool with an innovative UI, designed for developers to efficiently create, test, and manage MQTT-based applications, enhancing their development and support workflows.

Makers / Firmwares for ESP based Devices

• HomeGenie Mini - Smart device firmware for ESP8266/ESP32 supporting remote monitoring and controlling via MQTT with end-to-end encryption. The firmware is open source and it can be uploaded to the ESP device directly from the website.

Smart Home Hardware Interfaces / Firmwares for ESP based Devices

• amcrest2mqtt (⭐154) - Amcrest doorbell to MQTT bridge. Uses Home Assistant's MQTT discovery protocol.

Smart Home Integration Software / Firmwares for ESP based Devices

• HomeGenie - Supports remote controlling and monitoring via MQTT with end-to-end encryption.

• openLuup (⭐40) - A pure-Lua open-source emulation of the Vera Luup home automation environment with MQTT.

Smart Metering / Firmwares for ESP based Devices

• rpi-mqtt-monitor (⭐317) - The easiest way to track your Raspberry Pi or Ubuntu computer system health and performance in Home Assistant via MQTT.

Community Resources

• mqtt.org

• MQTT community wiki (⭐5.1k)

• Google Groups: MQTT

• IRC channel #mqtt on the freenode network

• A list of public brokers

Blogs

• Ben Hardill

• Jan-Piet Mens

• Nick O'Leary

• HiveMQ

• EMQ

• Amazon AWS IoT Blog

Talks

• An Introduction to MQTT: Why HTTP isn't the King of the Internet of Things - Shinji Kim, Robert Bird - Akamai, Samsung Developer Conference 2017.

• Einführung in MQTT - Dominik Obermaier & Jens Deters, Building IoT conference 2016 (German).

Brokers

• Ably - MQTT broker service and protocol adapter.

• ActiveMQ - A fast Java multiprotocol messaging and Integration Patterns server.

• Aedes (⭐2k) - Barebone MQTT broker that can run on any stream server, the node way.

• Emitter (⭐4k) - A distributed, scalable and fault-tolerant publish-subscribe messaging platform based on MQTT protocol and featuring message storage.

• EMQ X (⭐17k) - Scalable and Reliable Real-time MQTT Messaging Engine for IoT in 5G Era.

• esp_uMQTT_broker (⭐309) - A basic MQTT Broker on the ESP8266.

• hbmqtt Broker (⭐818) - Python MQTT broker using asyncio.

• HiveMQ - Java MQTT Broker that supports MQTT 3.1, 3.1.1 and 5.0. Commercial and open source editions available.

• hrotti (⭐125) - A MQTT broker written in Go.

• KMQTT (⭐295) - Kotlin Multiplatform MQTT broker, both embeddable and standalone.

• Moquette (⭐2.5k) - Java MQTT lightweight broker.

• Mosca - Node.js MQTT broker, which can be used Standalone or Embedded in another Node.js application.

• Mosquitto - "The" Open Source MQTT Broker.

• MyQttHub - Cloud MQTT broker.

• Mystique (⭐23) - An extendable MQTT broker written in Go, with HTTP capabilities for observability. Implements MQTT v3.1.1.

• RabbitMQ - High performance messaging broker with MQTT Adapter.

• RobustMQ - Multi-protocol brokers written in Rust.

• SurgeMQ - High Performance MQTT Server and Client Libraries in Go.

• VerneMQ - Apache2 licensed distributed MQTT broker, developed in Erlang.

• Vert.x MQTT Server (⭐214) - Vert.x component to handle connections, communication and messages exchange with remote MQTT clients.

• Waterstream - MQTT broker leveraging Apache Kafka as its own storage and distribution engine.

• NanoMQ (⭐2.6k) - A light-weight and Blazing-fast MQTT Broker for IoT Edge platform.

Cloud

• Adafruit IO - Data-oriented IoT framework and libraries.

• AWS IoT Core - Managed cloud broker service supporting MQTT, MQTT over WSS, HTTPS and LoRaWAN.

• CloudAMQP - Hosted AMQP brokers with MQTT support.

• Google Cloud IoT - Cloud managed MQTT service.

• HiveMQ Cloud - Cloud managed MQȚT service.

Platforms

• mainflux - Device management, data aggregation, data management, data analytics,connectivity and message routing and event management. Supported by Linux Software Foundation.

• thingsboard - Device management, data collection, processing, event management, and visualization for your IoT projects.

Tools

• hivemq-mqtt-web-client (⭐363) - Browser-based MQTT client that utilizes MQTT over websockets. Direct Link

• imqtt (⭐21) - Interactive MQTT packet manipulation shell based on IPython.

• IoT-Testware - The Eclipse IoT-Testware is a collection of conformance test suites for IoT protocols enriched with additional tools for fuzzing and performance testing.

• moxy (⭐23) - A Golang MQTT proxy providing useful output traces to monitor and troubleshoot your MQTT communications.

• MQTT Board (⭐103) - Open-source diagnostic-oriented MQTT client tool.

• mqtt-admin (⭐129) - Web based MQTT frontend. Direct Link.

• mqtt-benchmark (⭐121) - A benchmarking tool for MQTT Servers.

• MQTT CLI (⭐362) - A command line interface for connecting various MQTT clients supporting MQTT 5.0 and 3.1.1.

• mqtt-client (⭐17) - Simple MQTT Client command line (Python) (use paho lib).

• mqtt-forget (⭐10) - Command line tool to remove retained MQTT topics by wildcard.

• mqtt-fuzz (⭐81) - A simple fuzzer for the MQTT protocol.

• mqtt-malaria (⭐265) - Scalability and load testing utilities for MQTT environments.

• mqtt-mirror (⭐43) - Mirror MQTT traffic from one broker to another. Available as a CLI tool, Helm chart or Docker image.

• mqtt_recorder (⭐41) - Simple cli tool for recording and replaying MQTT messages.

• mqtt-shell (⭐17) - A simple interactive shell for MQTT.

• mqtt-spy - Java based MQTT frontend. Supports scripting.

• mqtt_tree (⭐6) - Displays all Topics in an expandable tree, helps to get an overview if you have a lot of clients publishing. (python, tkinter)

• mqtt-utils (⭐12) - A collection of MQTT utilities.

• mqtt-wall (⭐43) - Subscription only web-based client – like Twitter wall for MQTT.

• mqtt-wildcard (⭐13) - Node.js Module to match a MQTT Topic against wildcards.

• MQTT.fx - MQTT Client written in Java based on Eclipse Paho. Supports scripting.

• mqttcli (⭐123) - MQTT Client for shell scripting.

• MQTTInspector (⭐69) - A general MQTT testing app for iOS (iPhone and iPad).

• MQTTLens - A Google Chrome application, which connects to a MQTT broker and is able to subscribe and publish to MQTT topics.

• MQTT Explorer - Tool to visualize your MQTT topics in a topic hierarchy, a MQTT swiss-army knife.

• MQTT TUI (⭐721) - Simple lightweight terminal based MQTT monitor and publisher.

• Python MQTT Client Shell (⭐58) - Text console-based, interactive shell for exercising various tasks associated with MQTT client communications.

• SimpleMQTT - A Slack app to send messages from Slack to MQTT brokers with slash commands.

• Wireshark-MQTT (⭐95) - MQTT dissector for Wireshark.

• VSMQTT (⭐17) - Simple MQTT client integrated in Visual Studio Code.

• MQTTX (⭐5k) - Cross-platform MQTT desktop client open sourced by EMQ, which supports macOS, Linux, and Windows.

• MIMIC MQTT Simulator - Simulate up to 100,000 MQTT clients per server for development/testing/deployment of IoT applications.

• mqtt-stats (⭐11) - Subscriber client to monitor MQTT Topic Statistics.

• mqtt_monitor (⭐11) - Simple and lightweight console moniotor for mqtt topics, with eye-candies, in python 3.

Multi-Platform

• Paho - Open source client implementations for C,C++, Java, Python, JavaScript, GoLang, C#, Rust, Android and Embedded (Arduino/mbed).

• mosquitto-clients - mosquitto_pub and mosquitto_sub CLI clients for most operating systems and libmosquitto for integration.

Python

• gmqtt (⭐450) - Python MQTT v5.0 client (asyncio-based).

• hbmqtt Client (⭐818) - Python MQTT client using asyncio.

• MiniMQTT (⭐81) - MQTT Client Library for CircuitPython.

JavaScript

• MQTT.js - MQTT client for Node.js.

• mqtt-elements (⭐27) - Polymer elements for MQTT.

• mqtt-wrapper - Polymer Element that wraps other Elements and links them to MQTT topics.

• Vert.x Client (⭐214) - Vert.x component that provides methods for connecting/disconnecting to a broker, publishing messages and subscribing to topics.

Java

• hivemq-mqtt-client (⭐1.1k) - High-performance Java MQTT client library with different API flavours for MQTT 5.0 and 3.1.1.

Erlang or Elixir

• emqttc (⭐439) - Asynchronous Erlang MQTT Client.

• mqttex (⭐45) - MQTT implementation in Elixir.

Ballerina

• ballerina-mqtt (⭐106) - Ballerina MQTT client based on paho-mqtt.

C or C++

• mqtt_cpp (⭐485) - MQTT client for C++14 based on Boost.Asio.

• MQTT-C (⭐896) - A portable MQTT C client for embedded systems and PCs alike.

• wolfMQTT - A client implementation of the MQTT written in C for embedded use. It supports SSL/TLS via the wolfSSL library.

Clojure

• Machine Head (⭐81) - A Clojure MQTT Client.

Dart

• mqtt.dart (⭐51) - Dart MQTT client.

C# / .NET

• HiveMQtt (⭐97) - MQTT 5.0 compliant secure client with automatic back pressure management and TCP & WebSocket transport support.

• MQTTnet (⭐5.1k) - MQTT client and broker .NET implementations.

Delphi

• delphi-mqtt (⭐163) - MQTT server and client components.

• TMQTTClient (⭐26) - MQTT Client Library for Delphi. Alpha and long term unmaintained.

GoLang

• go-mqtt (⭐8) - MQTT client.

• MQTT for Go (⭐825) - MQTT Clients, Servers and Load Testers in Go.

Lua

• luamqtt (⭐183) - Pure-lua MQTT v3.1.1 and v5.0 client.

• mqtt_lua - MQTT Client library for the Lua language.

Objective-C

• MQTT-Client-Framework (⭐1.9k) - iOS, macOS, tvOS native ObjectiveC MQTT Client Framework.

• MQTTKit (⭐461) - MQTT Objective-C client for iOS.

PHP

• Mosquitto-PHP (⭐541) - A wrapper for the Mosquitto MQTT client library for PHP.

Ruby

• ruby-mqtt (⭐560) - Pure Ruby gem that implements the MQTT protocol.

Rust

• mqtt-rs (⭐186) - MQTT protocol library for Rust.

• rumqtt (⭐203) - A fast, lock free pure Rust MQTT client.

Swift

• CocoaMQTT (⭐1.8k) - MQTT for iOS and macOS written with Swift.

• Moscapsule (⭐274) - MQTT Client for iOS written in Swift.

TCL

• tcl-mqtt (⭐5) - Small library to connect to a MQTT broker. Very, very basic, and not maintained.

Scripting

• logic4mqtt (⭐17) - Java based Logic and scripting engine for use with MQTT. Uses Java's general scripting interface, so scripts can be written in a multitude of languages like JavaScript, Groovy etc.

• mqtt-scripts (⭐62) - Node.js based script runner.

• Node-RED - A visual tool for wiring the Internet of Things.

Makers

• arduinoTemps2mqtt (⭐14) - Arduino sketch, grab One-wire Temperature's and publish to a MQTT broker.

• Basecamp (⭐255) - An Arduino library to ease the use of the ESP32 in IoT projects. See c't Magazin 2'2018 (German).

• deskmate (⭐68) - A hackable & portable MQTT-powered mini dashboard and control center.

• MySensors - Arduino NRF24L01 based sensor network with support for an MQTT gateway.

• RFM69-MQTT-client (⭐81) - Arduino RFM69 based sensors and MQTT gateway.

• rpi2mqtt (⭐23) - Connect a RaspberryPis GPIOs and 1-Wire Temperature Sensors to MQTT.

• xbee2mqtt (⭐23) - XBee to MQTT gateway.

Makers / ESP

• pubsubclient (⭐4k) - A client library for the Arduino Ethernet Shield that provides support for MQTT.

• ESP32-BLE2MQTT (⭐775) - BLE to MQTT bridge, exposes BLE GATT characteristics as MQTT topics for bidirectional communication.

• ESP8266MQTTMesh (⭐265) - MQTT over mesh WiFi integrated library for ESP8266.

• esp_mqtt (⭐1.2k) - MQTT client library for ESP8266.

• mqtt-ir-transceiver (⭐143) - ESP8266 based bidirectional gateway between MQTT and IR. Use with PlatformIO.

• mqtt-with-micropython - Connect to MQTT with micropython and wipy/others (ESP32 inside).

• nodemcu-gpiomqtt (⭐10) - Lua script to connect ESP8266 GPIOs to MQTT.

Makers / Firmwares for ESP based Devices

• ESPEasy - Turns ESP into a multifunction sensor device for HA solutions with web-based configuration.

• ESPHome - Builds ESP8266/ESP32 firmware from concise YAML descriptions, uploads to and manages flashed devices.

• Espurna (⭐3.1k) - HA firmware for ESP8266-based devices with rich web UI and ≈120 devices supported out of the box.

• OpenMQTTGateway (⭐4.1k) - MQTT gateway for ESP8266, ESP32, Sonoff RF Bridge or Arduino with bidirectional 433mhz/315mhz/868mhz, Infrared communications, BLE, beacons detection, mi flora, mi jia, LYWSD02, LYWSD03MMC, Mi Scale compatibility, SMS & LORA.

• Sonoff-Tasmota (⭐25k) - Firmware for ESP8266 devices with web-based configuration. ≈500 devices supported (not only Sonoffs).

• WiFi-IoT - ESP8266/ESP32 firmware builder. Partly in Russian. Free features are limited.

Industry / Firmwares for ESP based Devices

• CODESYS-MQTT (⭐143) - A MQTT client for CODESYS PLC.

• spicierModbus2mqtt (⭐68) - Modbus master which publishes register values via MQTT.

• mqtt2opcua (⭐90) - Bi Directional MQTT to OPCUA Bridge.

• OPC Router - MQTT Gateway (publisher/subscriber) with various plug-ins (OPC UA Bridge, SQL Bridge, REST Bridge, SAP Bridge).

Telephony, PBX / Firmwares for ESP based Devices

• agi-mqtt (⭐34) - Interface between Asterisk and MQTT.

• fritz2mqtt (⭐7) - Connect FRITZ!Box to MQTT.

• sip2mqtt (⭐45) - A SIP monitoring script that publishes incoming calls with CallerID to MQTT.

• sms2mqtt (⭐67) - Docker Gateway to send/receive SMS through MQTT using an USB GSM dongle (gammu).

Operating System / Firmwares for ESP based Devices

• updates2mqtt - Check for Docker image updates and publish to MQTT, in structure to support Home Assistant's automated Updates and Discovery.

• mqtt-os-status (⭐19) - Operating-system related data, published to an MQTT broker at fixed intervals.

• mqttlauncher (⭐187) - Execute shell commands triggered by published MQTT messages.

• mqttpc (⭐9) - Control processes via MQTT. Ability to send signals via MQTT and to publish stdout/stderr or pipe MQTT payloads into stdin.

• mqttwatchdir (⭐41) - Recursively watch a directory for modifications and publish file content to an MQTT broker.

• psmqtt (⭐184) - Utility reporting system health and status via MQTT.

• WinThing (⭐103) - Remotely control Windows through MQTT.

Monitoring / Firmwares for ESP based Devices

• mqttwarn - Route and transform MQTT notifications, with 70+ built-in adapters for databases, messaging and other notification sinks.

• snmp2mqtt - Python based SNMP v2 and v3 bridge to MQTT, active project in late 2025.

• check-mqtt (⭐66) - A Nagios/Icinga plugin for checking connectivity to an MQTT broker.

• nag2mqtt (⭐7) - Nagios event broker to MQTT gateway.

• notify-by-mqtt (⭐16) - A Nagios/Icinga notification module which wraps data into JSON and fires it off to an MQTT broker.

• mqtt2notifysend (⭐13) - Subscribe to a topic and show notifications from MQTT messages on Ubuntu & other notify-send compatible Linux distros.

Location Tracking / Firmwares for ESP based Devices

• OwnTracks - Location tracking and geofencing for MQTT.

Logging / Firmwares for ESP based Devices

• graylog-plugin-mqtt (⭐13) - MQTT Input Plugin for Graylog.

• influx4mqtt (⭐38) - Subscribe to MQTT topics and insert into InfluxDB.

• mqtt2elasticsearch (⭐3) - Send MQTT messages to Elasticsearch.

• mqttcollect (⭐22) - A collectd "Exec" plugin for MQTT.

• mqtthandler (⭐22) - A Python logging handler module for MQTT.

• mqtt2mongodb (⭐19) - Subscribe to MQTT topics and insert into MongoDB.

Messaging / Firmwares for ESP based Devices

• mqttwarn (⭐979) - Subscribe to MQTT topics (with wildcards) and notify pluggable services.

• mqtt-irc-bot (⭐24) - A MQTT to IRC / IRC to MQTT bridge or bot.

• twitter-to-mqtt (⭐18) - A python daemon that uses the Twitter Streaming API to access tweets and republishes them to an MQTT topic.

Smart Home Hardware Interfaces / Firmwares for ESP based Devices

• airrohr2mqtt - Air quality monitoring integration.

• aqara-mqtt (⭐89) - Aqara (Xiaomi) Gateway to MQTT bridge.

• aqara2mqtt (⭐7) - Attach Aqara Smart Hubs to MQTT.

• can2mqtt (⭐102) - CAN-Bus - MQTT Bridge (also works vice versa).

• coe2mqtt - Bi-directional CAN Bus to MQTT.

• cul2mqtt (⭐9) - Interface between Busware CUL (868MHz RF-Devices like ELV FS20, HMS, EM, etc.) and MQTT.

• domiqtt (⭐2) - Connects to a Domiq Base (LCN) and translate from and to MQTT.

• eno2mqtt (⭐10) - Interface between an Enocean USB300 (TCM310) adapter and MQTT.

• Evohome2mqtt (⭐8) - MQTT Interface for the Honeywell Evohome system.

• fronius2mqtt - MQTT integration for Fronius SolarAPI.

• gardena2mqtt (⭐12) - Docker Gateway to control GARDENA Smart system devices (Sileno mower, Irrigation Control, etc.) through MQTT.

• helios2mqtt (⭐8) - A daemon for syncing a helios easy controls system like my KWL EC 220D to MQTT.

• hm2mqtt.js (⭐23) - Interface between EQ-3's Homematic line of smarthome devices and MQTT. Supports Homematic IP.

• homeeToMqtt (⭐13) - Bidirectional Interface between homee and MQTT.

• HS100toMQTT (⭐16) - Gateway between TPLink HS100/HS110 and MQTT.

• ipcam2mqtt (⭐26) - A small FTP server to receive movement images from ipcameras and turn them into MQTT alerts.

• knx-mqtt-bridge (⭐43) - Bridges KNX and MQTT using the knx.js library.

• knx2mqtt (⭐50) - Interface between the KNX home automation standard and MQTT.

• mcsMQTT - Plug-in for HS3 (HomeSeer).

• mqtt-dss-bridge (⭐5) - MQTT digitalSTROM-Server Bridge.

• mqtt-unifi-protect-bridge (⭐24) - Adding motion-status from UniFi Protect Cameras to MQTT.

• mqtt2homekit (⭐38) - Roughly the opposite of homekit2mqtt (⭐358): Control your HomeKit-enabled devices with MQTT and without Siri or iPhone.

• node-lox-mqtt-gateway (⭐27) - Gateway for Loxone™ mini server to communicate with MQTT broker.

• smartthings-mqtt-bridge (⭐379) - Bridge between SmartThings and MQTT.

• xiaomi2mqtt (⭐27) - Bridge between the Xiaomi Smart Home Gateway Aquara and a MQTT server.

• zigbee2mqtt (⭐16k) - Allows you to use your Zigbee devices without the vendors (Xiaomi/TRADFRI/Hue) bridge/gateway.

• zwavejs2mqtt (⭐1.2k) - Zwave to Mqtt gateway and Control Panel Web UI.

Smart Home Integration Software / Firmwares for ESP based Devices

• Home Assistant - Home Automation system with native MQTT support, and the world's largest non-commercial Open Source project.

• Domoticz - Home Automation system with MQTT support.

• FHEM - Includes a MQTT module since V5.6.

• Home.Pi (⭐191) - Based on MQTT.

• Homegear - Built in MQTT support.

• homekit2mqtt (⭐358) - Interface between HAP-NodeJS (⭐2.7k) and MQTT. Control MQTT connected devices with Siri or HomeKit Apps.

• ioBroker - Includes a MQTT adapter (⭐58).

• openHAB - Includes a MQTT binding (⭐3.4k).

• pimatic - MQTT plugin included.

• knx2mqtt - Telegram bi-directional integration as alternative to HomeAssistant's built-in support.

Lighting / Firmwares for ESP based Devices

• Arilux_AL-LC0X (⭐187) - This is an alternative firmware for Arilux LED controllers which uses MQTT.

• chromoflex2mqtt (⭐2) - Control Chromoflex USP3 RGB LED modules via MQTT.

• hue2mqtt.js (⭐30) - Interface between the Philips Hue bridge and MQTT.

• MQTT DMX Controller (⭐70) - DMX Controller with MQTT support.

• mqtt-dmx-sequencer (⭐26) - Headless counterpart to MQTT DMX Controller - use scenes and sequences exported from the MQTT DMX Controller and control them via MQTT.

• sunricher-wifi-mqtt (⭐18) - Control Sunricher LED devices using MQTT.

• TRADFRI2MQTT (⭐84) - MQTT Bridge for IKEA TRÅDFRI Light Gateway.

Home Entertainment / Firmwares for ESP based Devices

• airtunes2mqtt (⭐52) - MQTT controlled Multi-Room Audio with Airplay/Airtunes Devices.

• bravia2mqtt (⭐15) - Control your Sony Bravia TV with MQTT.

• broadlink-mqtt (⭐238) - MQTT client to control BroadLink RM devices.

• chromecast-mqtt-connector (⭐46) - Control your Google Chromecast devices using MQTT.

• harmony-api (⭐401) - A simple server allowing you to query/control multiple local Harmony Home Hubs over HTTP or MQTT.

• htd2mqtt (⭐3) - Bridge between an HTD Lync audio system and MQTT.

• kodi2mqtt (⭐88) - Interface between a Kodi media center instance and MQTT.

• lgtv2mqtt (⭐112) - Interface between LG WebOS Smart TVs and MQTT.

• lirc2mqtt (⭐23) - Send and receive infrared via LIRC.

• mopidy-mqtt (⭐23) - MQTT features for Mopidy.

• MQTT-DashCast-Docker (⭐5) - MQTT Docker to launch DashCast session on Chromecast.

• mqtt2atlonamatrix (⭐0) - Control Atlona HDMI matrix switches with MQTT.

• mqtt2tivoremote (⭐4) - Make TiVo DVR remote control available through an MQTT smarthome style interface.

• onkyo2mqtt (⭐39) - Interface between Onkyo AVR's EISCP network remote protocol and MQTT. Uses the onkyo-eiscp library.

• sonos2mqtt (⭐84) - A bridge between Sonos and MQTT.

• VLC MQTT Module - Control VLC via MQTT.

• xbmc2mqtt (⭐4) - A simple plugin for XBMC to listen for a particular topic on an MQTT broker, and display a popup message.

• yamaha-avr2mqtt (⭐11) - A simple adapter for connection Yamaha AVR to MQTT.

Smart Metering / Firmwares for ESP based Devices

• bcontrol2mqtt (⭐3) - Publish measurements from TQ Energy Manager / Busch-Jäger Energy Monitor to MQTT.

Misc / Firmwares for ESP based Devices

• AlexaMqttBridge (⭐109) - Bridge between Amazon Alexa and MQTT.

• bt-mqtt-gateway (⭐551) - Easily extensible Bluetooth to MQTT gateway, currently supports: EQ3 smart thermostat, Xiaomi Mi Scale, Linak Desk, MySensors and Xiaomi Mi Flora plant sensor.

• buderus2mqtt (⭐18) - Bridge between Buderus KM200 internet gateway and MQTT.

• chrome2mqtt (⭐22) - Python program to enable MQTT control endpoints for chromecasts (both audio and video).

• dashbutton2mqtt (⭐16) - Publish Amazon Dash Button presses to MQTT.

• flowerpower2mqtt (⭐7) - Publish measurements from Parrot Flower Power plant sensors to MQTT.

• gBridge (⭐170) - Control (almost) any smart home device, any smart home software, with Google Assistant. Therefore, it transforms actions received from Google by voice commands to MQTT messages.

• haiku2mqtt (⭐9) - A bridge between Haiku smart fans and MQTT.

• homely (⭐17) - Collection of Go daemons for connecting Domoticz and other stuff.

• kobold2mqtt (⭐2) - Bridge between Vorwerk Kobold Vr200 internet gateway and MQTT.

• leaf-python-mqtt (⭐27) - Extract data from Nissan Leaf API and post to MQTT.

• miflora-mqtt-daemon (⭐623) - Linux service to send Xiaomi Mi Flora plant sensor data to an MQTT broker.

• MQTT.Cool - A web gateway that optimizes any MQTT broker when sending real-time data to web clients with automatic throttling.

• mqtt2ble (⭐27) - A way to bridge MQTT topics to BLE Gatt characteristics.

• mqttclpro (⭐111) - MQTT Client with tasker integration Android app.

• mqttDB (⭐26) - A JSON store with MQTT interface.

• mqtt-camera-streamer (⭐248) - Stream images from a connected camera over MQTT & view using Streamlit.

• MQTT Joystick Controller (⭐8) - Open Source Android app that lets you control everything with your smartphone. Download it from Google Play.

• mqtt-transformer (⭐15) - A simple service which consumes, transforms and periodically republish json messages on MQTT.

• node-mqtt-for-anki-overdrive (⭐63) - Node.js Controller and MQTT API for Anki Overdrive.

• parrot-sample (⭐18) - Sample code which uses MQTT to control a Parrot AR Drone.

• serial2mqtt (⭐153) - A Linux gateway to connect low-cost microcontrollers only with a serial port to MQTT.

• snowboy2mqtt (⭐6) - Publish MQTT Messages on Snowboy Hotword Detection.

• speedtest2mqtt (⭐15) - Run speedtest-cli and publish results via MQTT.

• unifi2mqtt (⭐78) - Publish connected clients from Ubiquiti Unifi to MQTT.

• Valetudo (⭐9.6k) - Xiaomi (Roborock) Vacuum Robots Firmware with MQTT and Webinterface.

• wlan-thermo-mqtt-addon - Addon for a popular DIY barbecue thermometer.

• mqtt-tasker (⭐2) - Android Tasker mqtt plugin.

• MQTT2ETCD (⭐2) - MQTT-ETCD gateway: PUT keys on ETCD through MQTT, and watch ETCD key changes on MQTT topics.

Visualization, Dashboards / Firmwares for ESP based Devices

• Crouton (⭐297) - A dashboard that taps into your IOT network, using only MQTT and JSON.

• d3-MQTT-Topic-Tree (⭐97) - A MQTT Topic Tree viewer using the d3 collapsible tree and MQTT over websockets.

• HelloIoT (⭐110) - MQTT client and dashboard application.

• HOMR-REACT (⭐18) - A configurable MQTT Visualization.

• Linear MQTT Dashboard (⭐56) - Easy, customizable control panel - MQTT-client.

• MMM-mqtt (⭐16) - This is an extension for the MagicMirror². It provides the ability to subscribe to MQTT topics and display them.

• MQTT Dash - Android App: With the app you can create dashboards for your MQTT enabled IoT Smart Home devices and applications.

• MQTT-Hyperdash (⭐11) - A universal independent MQTT Dashboard for Linux/Raspberry Pi.

• MQTT.Cool Test Client - A web interface for testing interaction between MQTT.Cool and any MQTT broker.

• mqtt-panel (⭐440) - A web interface for MQTT.

• mqtt-prometheus-message-exporter (⭐21) - A small service which will convert mqtt messages to prometheus metrics.

• mqtt-svg-dash (⭐64) - Subscribe to MQTT, extract JSON from a message and make lights blink on an SVG page.

• MQTT-Tiles (⭐114) - MQTT-based IoT dashboard visualization tool. Allows easy dashboards sharing. Works with any MQTT broker supporting the WSS protocol.

• mqtt2highcharts (⭐62) - Plotting live numbered data from a subscribed MQTT topic using Highcharts.

• MYHELLOIOT - MQTT dashboard application.

• node-red-dashboard (⭐1.4k) - A dashboard UI for Node-RED.

• PlotJuggler (⭐6.1k) - Visualize time series (from sources such as: MQTT, Websockets, ZeroMQ, UDP, etc., supports data formats such as JSON, CBOR, BSON, Message Pack, etc.). It is a fast, powerful and intuitive cross-platform tool.

Architecture, Convention / Firmwares for ESP based Devices

• mqtt-smarthome (⭐453) - Smart home automation with MQTT as the central message bus - Architectural proposal.

• The Homie Convention (⭐745) - A lightweight MQTT convention for the IoT.

Security, Encryption / Firmwares for ESP based Devices

• Let's Encrypt Mosquitto Docker Container - Easier TLS certificate management for brokers.

• mqttsa (⭐50) - Broker mis-configuration detection for cyber protection.

• MQTT-PWN (⭐451) - IoT Broker penetration-testing and security assessment operations.

• Teserakt E4 - End-to-end encryption and key management for MQTT and other M2M protocols – Open-source and paid plans.

Cloud

• Alibaba Cloud IoT Platform - Provides secure and reliable communication between devices and the IoT Platform which allows you to manage a large number of devices on a single IoT Platform.

• Azure IoT Hub - Enable highly secure and reliable communication between your IoT application and the devices it manages. Azure IoT Hub provides a cloud-hosted solution backend to connect virtually any device. Extend your solution from the cloud to the edge with per-device authentication, built-in device management, and scaled provisioning.

• flespi - Free and secure cloud MQTT broker with private namespaces, MQTT 3.1.1 and MQTT 5.0 support and gorgeous limits.

Cloud

• CloudMQTT - Hosted message broker for the Internet of Things. Perfectly configured and optimized message queues for IoT, ready in seconds.