Webinar
EMQX Agents: From MQTT Events to AI Actions | Register Now → Status: Available
Free Public MQTT Broker
Powered by a global, geo-distributed EMQX cluster. Built for developers to prototype, learn, and test MQTT — with zero setup.
Multi-Region
MQTT 5.0
TLS & WSS
QUIC Support
Try EMQX Cloud free with 1M session min/month.
Public Endpointbroker.emqx.io
Trusted by Global Leaders
MQTT Broker Info
Broker Host
broker.emqx.ioProtocol
Port
Security & Encryption
Copy
01TCP
1883
Unencrypted TCP
02TLS/SSL
8883
TLS/SSL encrypted
03WS
8083
WebSocket, path /mqtt
04WSS
8084
Secure WebSocket, path /mqtt
05QUIC
14567
MQTT over QUIC (UDP)
CA Certificatebroker.emqx.io-ca.crtDownload
[!]Warning: This is a public broker. All messages are visible to other users. Do not send sensitive data.
Ready for Production?
Move effortlessly from sandbox to production with a dedicated MQTT environment.
EMQX Cloud Fully Managed
Free1M session min/month
Spin up a serverless MQTT broker in seconds.
- Fully managed & serverless
- Free quota, pay-as-you-go
- Built-in monitoring & 40+ integrations
EMQX Enterprise Self-Managed
Deploy Anywhere
Enterprise-grade MQTT broker for on-premises.
- Deploy anywhere, even air-gapped
- Full data sovereignty & control
- Enterprise security & governance
Compare all plans including BYOCView Pricing
Developer Tools
MQTTX Client Toolbox
The all-in-one MQTT 5.0 client toolbox. Debug your MQTT applications visually.
Broker Dashboard
View real-time connection stats, topic tree, and message throughput of this public broker.
Learn MQTT
Master MQTT with our comprehensive guides, tutorials, and code examples.