MQTTX

All-in-one MQTT 5.0 client toolbox for Desktop, CLI, and WebSocket, for testing and debugging MQTT connections.

Desktopfreeglobal

A cross-platform, open-source MQTT 5.0 client toolbox that runs on macOS, Linux, and Windows and offers desktop, CLI, and WebSocket clients. MQTTX helps IoT developers and engineers test and debug MQTT publish/subscribe flows across TCP, TLS, and WebSocket by letting them create and manage multiple simultaneous client connections with a chat-like interface and payload formatting.

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Problem & pain-point mapping
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What it's a strong alternative to
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