1. Hivemq Community EditionHiveMQ 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
2. Hivemq Mqtt ClientHiveMQ 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
4. hivemq-testcontainerAutomatic starting HiveMQ docker containers for JUnit4 and JUnit5 tests. This enables testing MQTT client applications and integration testing of custom HiveMQ extensions.
5. hivemq-spiService Provider Interfaces for Custom Plugin Development for the HiveMQ MQTT Broker
6. mqtt-cliMQTT CLI is a useful command line interface for connecting various MQTT clients supporting MQTT 5.0 and 3.1.1