An Elegant Cross-platform MQTT 5.0 Desktop Client
[ О приложении ]

MQTT X is a cross-platform MQTT 5.0 client tool open sourced by EMQ, which can run on macOS, Linux and Windows, and supports formatting MQTT payload.

MQTT X simplifies the operation logic of the page with the help of chatting software.
The user can quickly create a connection to save and establish multiple connection clients at the same time.
It is convenient for the user to quickly test the connection of MQTT/TCP、MQTT/TLS, MQTT/WebSocket Publish / Subscribe functions and other features.

Источник
Репозиторий: flathub

FlatPak: MQTT X [Utilities]