Free Public
MQTT Broker & Dashboard
Connect your IoT devices instantly. Use our free public broker credentials below to start testing ESP32, Arduino, or Python projects right now.
server1.mqtty.com18838084testusertest123Why use this Free MQTT Broker?
Perfect for students, hobbyists, and prototyping IoT solutions.
Instant Connection
No signup required. Just use the credentials above and start publishing.
Visual Dashboard
Debug your data with real-time charts and streaming logs.
Developer Friendly
Compatible with all major libraries: Paho, PubSubClient, MQTT.js, and more.
Professional Platform Coming Soon
We are building a robust, secure, and fully managed MQTT hosting platform. Use this demo server to explore the capabilities of our dashboard.
Current Demo
- Public Broker Access
- Real-time Dashboard
- Live Telemetry Logs
- Public Data (Not Private)
Pro Cloud
- Private Secure Instances
- TLS/SSL Encryption
- Data Persistence
- Priority Support
Knowledge Hub
Essential guides for IoT developers and MQTT architects.
What is MQTT?
Discover the lightweight messaging protocol that powers the Internet of Things. Learn about its low-bandwidth benefits and Pub/Sub architecture.
MQTT Specifications
A deep dive into specs. Comparing MQTT 3.1.1 vs MQTT 5.0 features including Shared Subscriptions, User Properties, and Session Expiry.
Setup MQTT Clients
Step-by-step tutorials for connecting popular hardware. How to configure ESP32, Arduino, and Raspberry Pi with Python Paho MQTT.
Projects & Industries
Explore real-world applications in Industrial IoT (IIoT), Home Automation, Smart Agriculture, and Automotive Telemetry systems.