Eclipse Amlen review
A flexible open-source broker for MQTT, JMS, and configurable message delivery.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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.
Eclipse Amlen pros and cons
- 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
Eclipse Amlen fact sheet, pricing and score →
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