Preserve the entirety of the features and functions of the MQTT environment based on Eclipse Paho. Save payloads as binary data sets, plain text files, formatted and raw, encode the content in base64. Import and export complete Topics or parts of them for adjustment and publishing.
Download of MQTT.fx 5.1.3 for Mac was on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. This free Mac application is a product of MQTT.fx. The application lies within Productivity Tools, more precisely Office Tools. Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe.
From the developer:
MQTT.fx is a MQTT Client written in Java and based on Eclipse Paho. Payload can now be saved as raw (binary), plain text, hex (fomatted), and base64 encoded. The program supports import/export of Topics (respectively, for publishing and subscribing) and Clipboard Messages. Also, it has the option to clear/keep the Messages Buffer on unsubscribe (by now, buffer is cleared on unsubscribe).
You may want to check out more software for Mac, such as MQTT, Course For Cubase 6 106 - FX, EQ, Automation and Mixing or Repair FX, which might be similar to MQTT.fx.