Message Broker Software
Alternatives to EMQX
EMQX is an MQTT platform for moving and processing IoT business data in real time. It combines publish/subscribe messaging with durable queuing, then applies SQL rules and a visual Flow Designer to filter, transform, enrich, and route messages. MQTT support extends through gateways and protocols including QUIC, CoAP, STOMP, and LwM2M. More than 50 native integrations include Kafka, PostgreSQL, MongoDB, AWS, Azure, OpenAI, Anthropic, and Google Gemini. Docker, Kubernetes, and installation packages support hybrid deployment across Linux, macOS, self-hosted, API, and web environments.
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CloudAMQP CloudAMQP suits teams from individual hobby developers and startups to enterprise businesses that need managed messaging clusters.
From $19/mo Free plan Web · macOS · Linux · API9.2 Visit Specs - 02
Apache ActiveMQ It suits teams building self-hosted messaging between applications, particularly those needing several protocols, client languages, or JMS options.
Free plan Open source Web · Windows · macOS · Linux9.0 Visit Specs - 03 Apache RocketMQ
RocketMQ suits teams that need asynchronous messaging, system decoupling, or load shifting between services.
Free plan Open source Windows · macOS · Linux · API8.9 Visit Specs - 04
Amazon SQS SQS suits organizations building microservices, distributed systems, or serverless applications, including startups, enterprises, nonprofits, and governments.
Free plan Web · API8.7 Visit Specs - 05 Faye
Faye suits developers building Bayeux-based messaging between servers and browser clients.
Free plan Open source Web · Windows · macOS · Linux8.7 Visit Specs - 06
Amazon SNS It suits teams needing cloud messaging between applications or notification delivery to people across SMS, mobile push, and email.
From $0.06/mo Free plan Web · API8.5 Visit Specs - 07
RabbitMQ RabbitMQ suits teams building application messaging or streaming systems that need deployment across cloud, on-premises, or container environments.
Free plan Open source Web · Windows · macOS · Linux8.4 Visit Specs - 08 HiveMQ MQTT Broker
It suits teams connecting devices to enterprise systems, particularly for large-scale IoT and enterprise operations.
From $299/mo Free plan Windows · Linux · API · Self-hosted8.3 Visit Specs - 09 Apache Qpid Broker-J
Broker-J suits developers and operators needing a self-hosted Java AMQP broker across Windows, UNIX, Linux or macOS environments.
Free plan Windows · macOS · Linux · API8.2 Visit Specs - 10
Google Cloud Pub/Sub Pub/Sub suits teams connecting backend services, analytics, integration pipelines, or task queues.
From $40/mo Free plan Web · API8.2 Visit Specs - 11
IronMQ IronMQ suits teams connecting services in distributed applications, with shared, dedicated, and on-premise deployment options.
From $399/mo Free plan Web · Linux · API · Self-hosted8.2 Visit Specs - 12
Solace PubSub+ Event Broker The broker is aimed at enterprises with demanding messaging and streaming needs, including those connecting applications, customers, partners, and devices across environments.
Free plan Web · Linux · API · Self-hosted8.2 Visit Specs - 13 Aedes Free plan API · Self-hosted8.1 Visit Specs
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Apache Artemis Free plan Windows · macOS · Linux · API8.1 Visit Specs - 15 Eclipse Amlen
Amlen suits teams building IoT or web messaging systems around MQTT or JMS, including those needing custom protocol plug-ins.
Free plan Web · Linux · iOS · Android8.1 Visit Specs - 16
Amazon MQ It suits teams needing managed ActiveMQ or RabbitMQ brokers, especially migrations from on-premises systems or messaging between cloud components.
Free plan Web · API8.0 Visit Specs - 17 beanstalkd Free plan macOS · Linux · Self-hosted7.9 Visit Specs
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Eclipse Mosquitto Mosquitto suits developers and operators building IoT messaging systems who want a broker that can run from low-power devices to full servers.
Free plan Windows · macOS · Linux · Self-hosted7.9 Visit Specs - 19 Lightstreamer
Lightstreamer is intended for teams building business-critical real-time applications in areas such as finance, gaming, aerospace, logistics, and media.
Free plan Web · Windows · macOS · Linux7.9 Visit Specs - 20 Apache Kafka
Kafka suits teams building event-driven pipelines, streaming analytics, integrations, or mission-critical applications that can self-host it.
Free plan API · Self-hosted7.8 Visit Specs - 21 JORAM Free plan Windows · Linux · API · Self-hosted7.8 Visit Specs
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KubeMQ Free trial Web · Linux · API · Self-hosted7.6 Visit Specs - 23 Mochi MQTT Free plan Linux · API · Self-hosted7.6 Visit Specs
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Upstash QStash From $1/mo Free plan Web · API7.6 Visit Specs - 26
Moquette Windows · Linux · Android · API7.5 Visit Specs - 27
NanoMQ Free plan Windows · Linux · Self-hosted7.5 Visit Specs - 28 NATS Free plan Linux · API · Self-hosted7.4 Visit Specs
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NSQ Web · Windows · macOS · Linux7.4 Visit Specs - 30 ZeroMQ
It suits developers building distributed or concurrent applications who want messaging patterns and transports without a dedicated broker.
Free plan Windows · macOS · Linux · Self-hosted7.4 Visit Specs
Choosing instead of EMQX
Alternatives become relevant when EMQX’s pricing or limits do not fit. Serverless is free but caps sessions and TPS at 1,000 and message size at 1 MB; Dedicated Flex starts at $234 per month, with higher plans requiring custom pricing. Compare each option’s delivery model, protocols, client platforms, scaling behavior, deployment choices, and integration style. Some alternatives focus on browser and mobile streaming, some provide managed AMQP or RabbitMQ clusters, and others offer cloud-native queues or open-source web messaging. The right switch depends on which of EMQX’s processing, integration, and MQTT capabilities you need to retain.