Downloading MQTT Explorer 0.3.5 for Mac from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this app available.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. The application lies within Internet & Network Tools, more precisely Network tools. The actual developer of this free software for Mac is Thomas Nordquist.
From the developer:
MQTT Explorer is a comprehensive and easy-to-use MQTT Client. It is the perfect tool to integrate new services and IoT devices in your network. The hierarchical view allows for a quick understanding of what is going on your broker. You can view topics and topic activity, delete topics, search/filter topics, and more.
You may want to check out more software for Mac, such as MQTT, Air Explorer or KeyStore Explorer, which might be related to MQTT Explorer.