Supported MQTT brokers

MQTT Studio is broker-agnostic. If it speaks MQTT 3.1.1 or 5.0, it will work. We've tested with:

• Mosquitto: the most popular open-source broker. Runs on anything from a Raspberry Pi to a cloud VM.
• HiveMQ: both the self-hosted and HiveMQ Cloud variants.
• EMQX: works with the open-source and enterprise versions.

#Connection options

• Plain TCP: usually port 1883. Fine on a private network.
• TLS: usually port 8883. Recommended for anything exposed to the internet.

#Authentication

MQTT Studio supports username and password authentication. Client certificates aren't supported yet.

#Topics

You can subscribe to any topic your broker permits, including wildcards (+ for single level, # for multi-level). Each widget listens to one topic.

#Missing a broker?

If you've tested MQTT Studio with a broker not listed here, or run into trouble with one, let us know.