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The Free MQTT Server for Arduino, ESP32, Raspberry PI IOT Project

Imagine an MQTT Server as the beating heart of the MQTT Publish/Subscribe protocol, tirelessly receiving messages from MQTT clients and skillfully delivering them to the deserving subscribing clients. It's like the ultimate message matchmaker!

Guess what? We've got a treat for you! Our delightful online public MQTT Server is just a click away, ready to make your MQTT message experiments a breeze. It's like a playground for MQTT enthusiasts!

Introducing the one and only Public Lonely Binary MQTT Server, a place where anyone can find solace and connection. It's the perfect spot to unleash your creativity and build an MQTT client that dances harmoniously with our broker.

Ready to dive in? To access the broker, please use the following details:

MQTT Server
 mqtt.lonelybinary.com
MQTT Port
1883
Websocket Port 9001