RabbitMQ is a complete and highly reliable enterprise messaging system based on the emerging AMQP standard
Cost / License
- Free
- Open Source
Platforms
- Mac
- Windows
- Linux

Eclipse Mosquitto is described as 'Open source (EPL/EDL licensed) message broker that implements the MQTT protocol versions 5.0, 3.1.1 and 3.1. Mosquitto is lightweight and is suitable for use on all devices from low power single board computers to full servers' and is an app in the education & reference category. There are more than 10 alternatives to Eclipse Mosquitto for a variety of platforms, including Linux, Windows, Mac, Self-Hosted and SaaS apps. The best Eclipse Mosquitto alternative is RabbitMQ, which is both free and Open Source. Other great apps like Eclipse Mosquitto are Apache Pulsar, Amazon Simple Queue Service, HiveMQ and VerneMQ.
RabbitMQ is a complete and highly reliable enterprise messaging system based on the emerging AMQP standard

Apache Pulsar is a distributed, open source pub-sub messaging and streaming platform for real-time workloads, managing hundreds of billions of events per day.
Amazon Simple Queue Service (SQS) is a fast, reliable, scalable & affordable message queuing service. Use SQS to transmit data without losing messages.

HiveMQ is a MQTT broker, tailored specifically for enterprises which find themself in the emerging age of Machine-to-Machine communication (M2M) and the Internet of Things.
VerneMQ is an open source, high-performance, clusterable MQTT broker. It scales horizontally and vertically on commodity hardware to support a high number of concurrent publishers and consumers while maintaining low latency and fault tolerance.
MQTTBox enables to create MQTT clients to publish or subscript topics, create MQTT virtual device networks, load test MQTT devices or brokers and much more.




Highly scalable MQTT broker with E2E security, enterprise integrations and multi variate protocols like HTTP,TCP,CoAP. Transporter comes in with integrated analytics, ML support.
MQTT Broker for Enterprise with TLS Support to seamlessly connect and communicate with all the MQTT Devices of your enterprise.

Pub/Sub works as a messaging middleware for traditional service integration or a simple communication medium for modern microservices.
EMQX is an open source MQTT 5.0 broker for IoT in 5G era, massively scalable and highly available clustering, running anywhere from edge to cloud.

RabbitMQ doesn't natively support MQTT.