Awesome MQTT

Why HTTP isn’t the King of IoT - Samsung Developer Conference 2017

Building IoT conference 2016 (German)

MQTT broker service and protocol adapter

Fast Java multiprotocol messaging and Integration Patterns server

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

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

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

Lightweight, high-performance Go MQTT server supporting distributed cluster

A scalable, secure, easy to use message broker that can be used for IoT, web and mobile use-cases. Open-sourced from IBM MessageSight.

Distributed, scalable publish-subscribe platform with message storage

Scalable and Reliable Real-time MQTT Messaging Engine for IoT in 5G Era

Basic MQTT Broker on the ESP8266

Python MQTT broker using asyncio

Java MQTT Broker supporting MQTT 3.1, 3.1.1 and 5.0. Commercial and open source editions

MQTT broker written in Go

Kotlin Multiplatform MQTT broker, both embeddable and standalone

Java MQTT lightweight broker

Node.js MQTT broker, Standalone or Embedded

The Open Source MQTT Broker - the most popular choice

Async MQTT v5.0 broker in Rust with TCP, TLS, WebSocket, and QUIC transport, plus authentication, ACL, bridging, and session persistence.

Cloud MQTT broker

Extendable MQTT broker in Go with HTTP observability

Light-weight and Blazing-fast MQTT Broker for IoT Edge platform

High performance messaging broker with MQTT Adapter

Multi-protocol brokers written in Rust

High Performance MQTT Server and Client Libraries in Go

Open-source, scalable, fault-tolerant broker for millions of IoT devices

Apache2 licensed distributed MQTT broker, developed in Erlang

Vert.x component for MQTT connections and message exchange

MQTT broker leveraging Apache Kafka as storage and distribution engine

Data-oriented IoT framework and libraries

Secure and reliable device communication platform

Managed cloud broker supporting MQTT, MQTT over WSS, HTTPS and LoRaWAN

Secure and reliable communication between IoT application and devices

Hosted AMQP brokers with MQTT support

Hosted message broker optimized for IoT

Fully Managed Cloud MQTT Broker for large scale deployments.

Free and secure cloud MQTT broker with private namespaces

Cloud managed MQTT service from Google

Cloud managed MQTT service from HiveMQ

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

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.

Device management, data aggregation, analytics and more. Linux Foundation supported

Device management, data collection, processing, and visualization for IoT

Browser-based MQTT client using websockets

Node.js CLI and library that maps Homie MQTT metadata to Home Assistant MQTT discovery payloads.

Conformance test suites with fuzzing and performance testing

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

A high-performance IoT data generator written in Rust. Supports MQTT, HTTP, and TCP for simulating realistic sensor payloads with Handlebars templates.

Simulate up to 100,000 MQTT clients per server

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.

Golang MQTT proxy for monitoring and troubleshooting

Open-source diagnostic-oriented MQTT client tool

Command line interface supporting MQTT 5.0 and 3.1.1

Visualize MQTT topics in a hierarchy - a MQTT swiss-army knife

Simple lightweight terminal based MQTT monitor and publisher

Web based MQTT frontend

Simple MQTT Client command line (Python)

Simple fuzzer for the MQTT protocol

Scalability and load testing utilities for MQTT

Mirror MQTT traffic from one broker to another

Java based MQTT frontend with scripting support

Subscriber client to monitor MQTT Topic Statistics

Practical MQTT Tool with innovative UI for developers

Subscription-only web client - like Twitter wall for MQTT

MQTT Client written in Java based on Eclipse Paho with scripting

Lightweight console monitor for mqtt topics

CLI tool for recording and replaying MQTT messages

Display all Topics in an expandable tree view

MQTT Client for shell scripting

A console-based MQTT client and commander, especially useful for IoT, Tasmota, and Node-RED setups.

General MQTT testing app for iOS

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(...).

Google Chrome MQTT client application

Unified MQTT v5.0 CLI for publishing, subscribing, running a broker, and benchmarking with multi-transport support.

Cross-platform MQTT desktop client for macOS, Linux, and Windows

Interactive console shell for MQTT client operations

Slack app to send messages to MQTT brokers

Simple MQTT client integrated in Visual Studio Code

Ballerina MQTT client based on paho-mqtt

MQTT for iOS and macOS written in Swift

MQTT server and client components.

Asynchronous Erlang MQTT Client

Pure-lua MQTT v3.1.1 and v5.0 client

Clojure MQTT Client

MQTT Client for iOS written in Swift.

A wrapper for the Mosquitto MQTT client library for PHP.

iOS, macOS, tvOS native ObjectiveC MQTT Client

MQTT protocol library for Rust

Dart MQTT client.

Complete async MQTT v5.0 client and broker library for Rust with TCP, TLS, WebSocket, and QUIC support.

MQTT Client library for the Lua language.

MQTT Objective-C client for iOS.

Pure Ruby gem that implements the MQTT protocol

Fast, lock free pure Rust MQTT client

Small library to connect to a MQTT broker. Very, very basic, and not maintained.

Node.js based script runner

A visual tool for wiring the Internet of Things

Interface between Asterisk and MQTT.

MQTT controlled Multi-Room Audio with Airplay/Airtunes Devices.

Bridge between Amazon Alexa and MQTT.

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

This is an alternative firmware for Arilux LED controllers which uses MQTT.

Control your Sony Bravia TV with MQTT.

MQTT client to control BroadLink RM devices.

Easily extensible Bluetooth to MQTT gateway, currently supports: EQ3 smart thermostat, Xiaomi Mi Scale, Linak Desk, MySensors and Xiaomi Mi Flora plant sensor.

Bridge between Buderus KM200 internet gateway and MQTT.

Publishes Claude Code (Anthropic’s AI coding agent) usage telemetry to MQTT with Home Assistant auto-discovery. 15 sensors, mood classifier.

A Nagios/Icinga plugin for checking connectivity to an MQTT broker.

Python program to enable MQTT control endpoints for chromecasts (both audio and video).

Control your Google Chromecast devices using MQTT.

A MQTT client for CODESYS PLC.

Connect FRITZ!Box to MQTT.

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.

MQTT Input Plugin for Graylog.

A simple server allowing you to query/control multiple local Harmony Home Hubs over HTTP or MQTT.

Collection of Go daemons for connecting Domoticz and other stuff.

Philips Hue bridge to MQTT interface

Subscribe to MQTT topics and insert into InfluxDB.

Bridge between Vorwerk Kobold Vr200 internet gateway and MQTT.

Kodi media center to MQTT interface

Extract data from Nissan Leaf API and post to MQTT.

Interface between LG WebOS Smart TVs and MQTT.

Send and receive infrared via LIRC.

Linux service to send Xiaomi Mi Flora plant sensor data to an MQTT broker.

MQTT features for Mopidy.

DMX Controller with MQTT support.

Open Source Android app that lets you control everything with your smartphone. Download it from Google Play.

Stream images from a connected camera over MQTT & view using Streamlit.

A simple service which consumes, transforms and periodically republish json messages on MQTT.

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

MQTT-ETCD gateway: PUT keys on ETCD through MQTT, and watch ETCD key changes on MQTT topics.

Subscribe to MQTT topics and insert into MongoDB.

Subscribe to a topic and show notifications from MQTT messages on Ubuntu & other notify-send compatible Linux distros.

Bi Directional MQTT to OPCUA Bridge.

Make TiVo DVR remote control available through an MQTT smarthome style interface.

MQTT Client with tasker integration Android app.

A Python logging handler module for MQTT.

Execute shell commands triggered by published MQTT messages.

Control processes via MQTT. Ability to send signals via MQTT and to publish stdout/stderr or pipe MQTT payloads into stdin.

Use with carbon plugin.

Route and transform MQTT notifications with 70+ adapters

Recursively watch a directory for modifications and publish file content to an MQTT broker.

Node.js Controller and MQTT API for Anki Overdrive.

A Nagios/Icinga notification module which wraps data into JSON and fires it off to an MQTT broker.

Interface between Onkyo AVR’s EISCP network remote protocol and MQTT. Uses the onkyo-eiscp library.

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

Location tracking and geofencing for MQTT

Utility reporting system health and status via MQTT.

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).

The easiest way to track your Raspberry Pi or Ubuntu computer system health and performance in Home Assistant via MQTT.

A Linux gateway to connect low-cost microcontrollers only with a serial port to MQTT.

A SIP monitoring script that publishes incoming calls with CallerID to MQTT.

Docker Gateway to send/receive SMS through MQTT using an USB GSM dongle (gammu).

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

Publish MQTT Messages on Snowboy Hotword Detection.

Bridge between Sonos and MQTT

Modbus master which publishes register values via MQTT.

Control Sunricher LED devices using MQTT.

MQTT Bridge for IKEA TRÅDFRI Light Gateway.

Publish connected clients from Ubiquiti Unifi to MQTT.

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

Xiaomi (Roborock) Vacuum Robots Firmware with MQTT

Control VLC via MQTT.

Remotely control Windows through MQTT.

Addon for a popular DIY barbecue thermometer.

A simple adapter for connection Yamaha AVR to MQTT.

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.

Dashboard that taps into your IOT network using MQTT and JSON

A MQTT Topic Tree viewer using the d3 collapsible tree and MQTT over websockets.

MQTT client and dashboard application

Easy, customizable control panel - MQTT-client

This is an extension for the MagicMirror². It provides the ability to subscribe to MQTT topics and display them.

Android app for IoT dashboards

Self-hostable MQTT dashboard/explorer with drag-and-drop panels like cron, button, log and topic browser to help interact and monitor MQTT topics

Universal MQTT Dashboard for Linux/Raspberry Pi

Web interface for MQTT

A small service which will convert mqtt messages to prometheus metrics.

IoT dashboard visualization tool with easy sharing

A web interface for testing interaction between MQTT.Cool and any MQTT broker.

MQTT dashboard application.

Dashboard UI for Node-RED

Time series visualization from MQTT, WebSockets, and more

Smart home automation with MQTT as the central message bus

A lightweight MQTT convention for the IoT

Docker container for easier TLS certificate management

IoT Broker penetration-testing and security assessment

Broker mis-configuration detection for cyber protection

End-to-end encryption and key management for MQTT