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HiveMQ Public Broker
MQTT Dashboard

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HiveMQ Cluster
Connection Issue Detected! ⚠️

We're experiencing difficulty retrieving data from the MQTT broker monitoring API, which may result in the display of inaccurate or zero values. This could indicate a potential issue with the MQTT broker or the monitoring system. Our team is already investigating the problem.

Please be assured that we are actively working to resolve this issue. In the meantime, you may experience limited or delayed updates on the dashboard. We apologize for any inconvenience this may cause and appreciate your patience.

For immediate assistance or to report any concerns, please reach out to our support team at HiveMQ Community Forum. Thank you for your understanding.

Clients Connected

Topic Subscriptions

MQTT Sessions

Messages

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Out

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Retained

Queued  

Network

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Read 

Cluster Size
0 Nodes
Broker

This public MQTT broker runs on HiveMQ. Use it to learn MQTT and test publishing and subscribing with your preferred MQTT client or library.

Build with HiveMQ Platform

Start with reliable MQTT connectivity. HiveMQ Platform also helps you organize operational data into a shared structure, calculate useful information from live data and support governed workflows as your requirements grow.

Explore self-managed and fully managed options for your project.

Try HiveMQ Platform · View deployment options and pricing

Getting Started

If you are new to MQTT and want to know how it works take a look at the MQTT Essentials which explains all the basics in a very digestible manner.

You can use our MQTT Websocket client to publish and subscribe to the broker. A list of assorted MQTT client tools with tutorials about their features can be found in the MQTT Toolbox.

If you want to use MQTT in your software project you can take a look at the MQTT Client Library Encyclopedia, which contains a range of HowTos on MQTT client libraries for different programming languages.

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MQTT Connection Settings
Host: broker.hivemq.com
TCP Port: 1883
Websocket Port: 8000
TLS TCP Port: 8883
TLS Websocket Port: 8884
Warning! ⚠️

By accessing the MQTT broker, you represent that you have read and accepted the following:

  • The purpose of this free MQTT broker is for you to learn about and test the MQTT protocol, it must not be used in Production, Dev, Staging or UAT environments.
  • Please consider adding a reconnect logic to your client (the following blog post helps you to understand the basics).
  • HiveMQ does not commit to an uptime percentage and may update the underlying HiveMQ instances of this MQTT broker at any time which may lead to message loss.
  • Further, HiveMQ retains the right to disconnect clients at any time or ban users from accessing this MQTT broker in the future.
  • To the extent legally permissible, HiveMQ makes no representation as to the functionality of this MQTT broker (such as performance, bandwidth or latency) nor gives any guarantees or provides warranties. All liability is excluded.
  • Please note that this MQTT broker can be used by anyone, therefore it is strongly advised not to feed any sensitive information or personal data into the system.
  • Any illegal use of this MQTT broker is strictly forbidden.
  • By using this MQTT broker you warrant that you are not a sanctioned person nor are you located in a country that is subject to sanctions.
  • It is strictly forbidden to use this MQTT broker to circumvent any commercial agreement that is in place between HiveMQ and yourself or the company you are acting for.

This public broker is a simple way to get started with MQTT, but it doesn't reflect the full power or reliability of our enterprise solutions. For real-world MQTT deployments, careful planning and sizing are important.

Planning your own deployment?

Choose a HiveMQ deployment that fits your application’s capacity, security and availability requirements.