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Moquette MQTT

Date Review
10 years 1 month ago
Date Trademark
10 years 1 month ago
Date Provisioned
9 years 8 months ago
This proposal is in the Project Proposal Phase (as defined in the Eclipse Development Process) and is written to declare its intent and scope. We solicit additional participation and input from the community. Please login and add your feedback in the comments section.
Parent Project
Working Group
Proposal State

In the last couple of years machine-to-machine communication and monitoring needs of remote controlled devices has raised interest also for hobbists, has attracted more developers to the Internet-Of-Things world. Moquette MQTT is positioned in this scenario and propose to create a simple and small self contained Java implementation of an MQTT broker.

The current version is 0.5; it's gaining interest in the MQTT community.


Moquette is a Java-based fully compliant MQTT lightweight message broker that can be easily configured. The project maintains compliance with the evolution of the MQTT protocol specification.


Moquette is a Java implementation of an MQTT 3.1 broker. Its code base is small. At its core, Moquette is an events processor; this lets the code base be simple, avoiding thread sharing issues.

The Moquette broker is lightweight and easy to understand so it could be embedded in other projects. By default it lives standalone, but could be integrated into an OSGi container to create more significant integrations, for example running inside an embedded OSGi broker like Concierge.

Why Here?

The Eclipse Foundation focuses on building great community on great projects, and also is becoming the home to many IoT-related projects, for example Paho and Mosquitto to name the prominent examples. Having a freely-available pure MQTT broker written in the Java language with a commercial-friendly license could be a great win for the growing IoT community and for the Moquette broker in substaining its growth and adoption in IoT related projects.

Project Leads
Interested Parties


  •  Kai Kreuzer, Eclipse SmartHome Project Lead
  • openHAB UG
Initial Contribution

The code is written mainly in Java with some Groovy scripted integration utilities/use cases, in the form of multimodule Maven project. The code has been mainly written by a single committer and project lead Andrea Selva with some suggested bugfixes in form of issues notifications. The source code is freely available as

Source Repository Type