EMQX Public MQTT Broker
| Protocol | Server | Port | MQTT Version | Note |
|---|---|---|---|---|
| TCP | broker.emqx.io | 1883 | 5.0/3.1.1 | You can subscribe to testtopic/# topics |
| TCP/TLS | broker.emqx.io | 8883 | 5.0/3.1.1 | You can subscribe to testtopic/# topics |
| Websocket | broker.emqx.io | 8083 | 5.0/3.1.1 | You can subscribe to testtopic/# topics |
| Websocket/TLS | broker.emqx.io | 8084 | 5.0/3.1.1 | You can subscribe to testtopic/# topics |
Mosquitto Public MQTT Broker
| Protocol | Server | Port | MQTT Version | Note |
|---|---|---|---|---|
| TCP | test.mosquitto.org | 1883 | 5.0/3.1.1 | unencrypted, unauthenticated |
| TCP | test.mosquitto.org | 1884 | 5.0/3.1.1 | unencrypted, authenticated |
| TCP/TLS | test.mosquitto.org | 8883 | 5.0/3.1.1 | encrypted, unauthenticated |
| TCP/TLS | test.mosquitto.org | 8884 | 5.0/3.1.1 | encrypted, client certificate required |
| TCP/TLS | test.mosquitto.org | 8885 | 5.0/3.1.1 | encrypted, authenticated |
| TCP/TLS | test.mosquitto.org | 8886 | 5.0/3.1.1 | encrypted, unauthenticated |
| TCP/TLS | test.mosquitto.org | 8887 | 5.0/3.1.1 | encrypted, server certificate deliberately expired |
| Websocket | test.mosquitto.org | 8080 | 5.0/3.1.1 | unencrypted, unauthenticated |
| Websocket/TLS | test.mosquitto.org | 8081 | 5.0/3.1.1 | encrypted, unauthenticated |
| Websocket | test.mosquitto.org | 8090 | 5.0/3.1.1 | unencrypted, authenticated |
| Websocket/TLS | test.mosquitto.org | 8091 | 5.0/3.1.1 | encrypted, authenticated |
Related Tools
The public free mqtt broker online supports mqtt, mqtts, ws, wss and other protocol access, and supports mqtt 3.1.1 and 5.0 standards.
The online free mqtt broker lists the public free mqtt servers that can be used to learn and test the mqtt protocol. Mqtt is a client server based message publish / subscribe transport protocol. Mqtt protocol is lightweight, simple, open and easy to implement. These characteristics make it widely applicable, It is widely used in Internet of things scenarios.
