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
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Mqtt5 GitHub Repositories (2026) · Open Source Tools
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3 matching projects · updated Oct 9, 2026
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Pure asyncio MQTT 3.1.1 and 5.0 for Python 3.10+, with deterministic subscription routing, bounded queues, and correlation-safe request/response.
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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
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