MQTT fx is a cross platform application for Windows for testing and debugging MQTT broker and topics. It is developed on the basis of JavaFX, which allows for quick and easy installation to a wide range of operating systems.

Interface and protocol

MQTT is a messaging protocol that allows bi-directional communication between the cloud and Internet of Things devices. This program offers a graphical user interface similar to that of an email client like Eudora. This simplifies usage and allows you to better understand the logic behind the exchange of messages.

MQTT options

The application offers standard for this type of software publish and subscribe functionality. Moreover, it provides support for $SYS topics and profiles for connecting to different brokers. The profiles allow for the configuration of the following options:

client ID;
SSL;
TLS;
username;
password;
LWT.

Additionally, there is a scripting feature, with which you can perform simulation of different sensors.

Special tools

The Mime-Type function enables you to see which files are used when you transmit a signal. This means that a small part of the message will contain the type of the message itself. Therefore the machine will react accordingly to the format.

Features

free to download and use;
gives you the ability to communicate with machines via the MQTT protocol;
compatible with modern Windows versions;
can connect to different IoT devices;
supports various file formats.