MqttInsight - MQTT Client GUI

MqttInsight is an open source cross platform MQTT desktop client.

Features:

Supports MQTT3 and MQTT5;
Supports Websocket;
Switchable table and dialogue message views;
Supports Node.js JavaScript (Supported by Javet);
Built in message codecs such as PlainText, JSON, XML, HEX, Base64, Protobuf, Message Pack, Avro, Hessian, Hessian2, and Kryo;
Supports codecs through Java SPI;
Supports codecs written in JavaScript;
Provides charts such as message quantity statistics, message load statistics, and message content statistics;