A Powerful and All-in-One MQTT 5.0 client toolbox for Desktop, CLI and WebSocket.

An ultra-lightweight and blazing-fast Messaging broker/bus for IoT edge & SDV

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

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

HiveMQ MQTT Client is an MQTT 5.0 and MQTT 3.1.1 compatible and feature-rich high-performance Java client library with different API flavours and backpressure support

🕹 MQTT Protocol Analysis and Coroutine Client for PHP. Support for 3.1, 3.1.1 and 5.0 versions of the MQTT protocol.

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

NanoSDK - MQTT 5.0-compliant SDK with QUIC support in NNG flavor

A modern graphical MQTT client using the HiveMQ client library. MQTT is a messaging protocol widely used in the IoT world. CorreoMQTT provides a UI to send and receive messages. It is able to handle multiple connections at the same time.

MQTT Version 5.0 Chinese

MQTT Proxy allows MQTT clients to send messages to other messaging systems

Open source Extension SDK for the HiveMQ Enterprise MQTT broker that you can use to extend the broker with custom functionality and integrate the broker with other external systems

Official Docker Images for the Enterprise MQTT Broker HiveMQ

OSGi Messaging Specification RFC 246 and compliant MQTT 5.0 Implementation

Async MQTT 3.1.1 & 5.0 Client for Arduino ESP32 & ESP8266 & RP2040

implement mqtt5 protocol with rust, any pr would be appreciate

⚙️ PHPMQTT CLI Tools

MapsMessaging server supports the standard IoT protocols out of the box and enables server to server comms, plus filtering across all protocols

Fast, powerful and runtime agnostic MQTT 5 client for Rust.

VXMQ is a Java-based open-source MQTT broker, implemented using the reactive framework Vert.x.