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

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.

Automatic starting HiveMQ docker containers for JUnit4 and JUnit5 tests. This enables testing MQTT client applications and integration testing of custom HiveMQ extensions.

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

HiveMQ extension for transferring monitoring data to Prometheus

HiveMQ extension for managing role-based authorization

The HiveMQ MQTT Message Log Extension provides the possibility to follow up on any clients communicating with the broker on the terminal.

HiveMQ extension for transferring monitoring data to the time series database InfluxDB

Open source Customization SDK for the HiveMQ Enterprise Extension for Google Cloud Pub/Sub that you can use to customize the extension and enrich your data transfer between MQTT and Google Cloud Pub/Sub.

HiveMQ extension for demonstrating the HiveMQ extension system

HiveMQ extension for elastic, cloud-native clustering with Docker, Kubernetes and Openshift via DNS discovery

HiveMQ extension for dynamic clustering with AWS S3 discovery

HiveMQ extension to use MQTT as chat protocol.

Open source Customization SDK for the HiveMQ Enterprise Extension for Kafka that you can use to customize the extension and enrich your data transfer between MQTT and Kafka.

HiveMQ extension for denying subscriptions to the root wildcard

An example customization project for the HiveMQ Enterprise Extension for Kafka using the HiveMQ Kafka Extension Customization SDK.

HiveMQ Sparkplug aware extension that provides a Sparkplug Aware Broker.

A smart migration tool to migrate your configuration and persistent connections from Mosquitto to the HiveMQ Enterprise MQTT Broker.

HiveMQ extension for dynamic clustering with Azure Blob Storage discovery.

Some ideas for a custom Thingsboard Gateway based on Redis and Apache Camel java connectors