Eclipse Amlen

At a glance

• Editor score
  7.4 / 10
• Pricing
  Free plan
• Best for
  Open-source MQTT and JMS deployments
• Free plan
  Yes
• Paid from
  Free
• Deployment model
  Self_hosted
• Facts checked
  20 Sep 2026

• Where it wins

  • Supports MQTT 3–5, WebSockets, JMS, and custom protocol plug-ins
  • Offers at-most-once through exactly-once delivery modes
  • Runs with Docker or Linux packages and provides REST administration

• Where it doesn't

  • Self-hosted deployment requires infrastructure and operational responsibility
  • Custom protocol plug-ins may require additional development effort
  • Its focus is narrower than a general-purpose integration platform

Our verdict on Eclipse Amlen

Eclipse Amlen is a self-hosted message broker for IoT, mobile, and web workloads. It is designed for teams building MQTT or JMS deployments that need publish/subscribe and point-to-point messaging, configurable persistence, and multiple delivery guarantees. MQTT versions 3 through 5 are supported over TCP/IP and WebSockets, while JMS clients and resource adapters support Java-oriented environments. The open-source model makes it a fit for organizations that prefer control over deployment and broker configuration.

Protocol and delivery flexibility are the product’s clearest strengths. Applications can use at-most-once, at-least-once, or exactly-once delivery, along with persistent or nonpersistent messages. Custom protocol plug-ins extend the broker beyond its standard MQTT and JMS support. Integration options include IBM MQ, Kafka, and Java EE application servers, giving it a practical role in environments that combine IoT messaging with existing enterprise systems. Docker and Linux package deployment support common self-hosted operating models, and administration is available through a Web UI and REST APIs.

The trade-off is operational ownership. Teams must handle the infrastructure behind a Docker or Linux deployment and decide how persistence, delivery modes, and protocol extensions should be configured. Eclipse Amlen is a strong choice for organizations that want an open-source MQTT/JMS broker with configurable messaging behavior and extensibility. It is less suitable for buyers seeking a hosted service or a broader application integration suite with minimal platform administration.

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Eclipse Amlen pricing

Eclipse Amlen fact sheet

Eclipse Amlen integrations

Eclipse Amlen lists 3 integrations on its own site.

• IBM MQ
• Kafka
• Java EE application servers

Alternatives to Eclipse Amlen

• RabbitMQA broad, open-source broker for queues, routing, streaming, and hybrid deployments.9.4
• Solace PubSub+ Event BrokerA broad hybrid event broker for teams connecting applications, services and devices.9.2
• Google Cloud Pub/SubA managed cloud pub/sub service with strong delivery controls and usage-based pricing.9.1

See all Eclipse Amlen alternatives →

Featured on iTechGuides

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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Last updated 7 Oct 2026 · How we research and update