Best Mqtt Software | 2026 Expert Picks

We evaluated EMQX, HiveMQ, VerneMQ, Mosquitto, RabbitMQ, Apache ActiveMQ Artemis, AWS IoT Core, Azure IoT Hub, Google Cloud IoT Core, and Adafruit IO using four rating dimensions: overall capability, feature depth, ease of use, and value. EMQX separated itself with production MQTT broker capabilities that combine high-performance concurrency, clustering, shared subscriptions, and extensible authentication and authorization plus operational monitoring and management features. Tools like HiveMQ scored highly for features by pairing production broker performance with a built-in HiveMQ Rule Engine and enterprise-grade access control, while Mosquitto scored value for lightweight operation with MQTT 5.0 support and retained and persistent session handling.