Mqtt insight

Mqtt GUI client for Mac OSX, Windows and Linux

From ptma·Updated June 26, 2026·View on GitHub·

MqttInsight is an open source cross platform MQTT desktop client. The project is written primarily in Java, distributed under the Apache License 2.0 license, first published in 2023. Key topics include: cross-platform, iot, mqtt, mqtt-client, mqtt-client-gui.

Latest release: v1.2.0

February 14, 2026View Changelog →

<img src="assets/logo.png" alt="logo" width="32"/> 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;
Topic hierarchy visualization;
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;
Message search and filtering.