EMQX
Scalable open-source MQTT broker for IoT and messaging.
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Use it free
Open the official tool or demo — no account needed.
Self-host it
Run the open-source version on your own infrastructure.
What is EMQX?
EMQX is an open-source MQTT platform designed for AI and IoT data streaming, enabling real-time communication between millions of devices and cloud services. It acts as a unified messaging system for Software-Defined Vehicles (SDV), IoT, and industrial applications, transforming raw device data into actionable insights. Used by global leaders in automotive, manufacturing, and AI infrastructure, EMQX addresses challenges in scaling IoT connectivity, ensuring secure, low-latency data transmission, and integrating with cloud analytics platforms. Its core value lies in bridging physical devices with AI systems, allowing data flow for applications like connected vehicles, smart factories, and edge computing.
How it works
EMQX is a scalable MQTT broker and platform that enables real-time data streaming from IoT devices, vehicles, and AI systems to cloud services, analytics tools, and edge infrastructure. It serves as the backbone for connecting millions of devices while ensuring secure, reliable, and low-latency communication. The platform is designed to handle the complexity of modern IoT ecosystems, supporting use cases such as connected vehicles, industrial automation, and AI-driven data processing. It simplifies the integration of heterogeneous devices and systems, making it a critical component for enterprises requiring high-throughput, mission-critical data pipelines. EMQX supports massive device connectivity, handling up to 500M+ devices and 25M+ connected vehicles. It integrates with cloud platforms like AWS, Azure, and GCP, as well as analytics tools such as Snowflake and Databricks. Features include real-time data processing, message filtering, and secure authentication protocols. The platform also enables AI agents to interact with IoT devices, leveraging MQTT for bidirectional communication.
How to use it
- 1Deploy EMQX via its cloud service, self-managed enterprise platform, or open-source installation. 2. Configure MQTT brokers to connect IoT devices using protocols like MQTT over TCP/WS. 3. Use the web console or API to manage device authentication, topic subscriptions, and message routing. 4. Integrate with cloud platforms or analytics tools via EMQX's built-in connectors or plugins. Practical tips include leveraging the web-based UI for monitoring, using plugins for advanced features like message filtering, and scaling clusters for high-throughput workloads. For edge scenarios, deploy lightweight agents to process data locally before streaming to the cloud.
What it can do
- mqtt broker
Use cases
Assumptions and limitations
Assumptions
- source: https://github.com/emqx/emqx
- license: Apache-2.0 — free to use
- privacy: Self-hosted — you control your data
Limitations
- Complex setup and configuration may require advanced knowledge of MQTT protocols and network infrastructure.
- High resource demands for large-scale deployments, necessitating dedicated infrastructure or cloud services.
- Dependence on stable network environments for reliable device communication, especially in mobile networks.
- Limited built-in analytics capabilities; requires integration with external tools like Snowflake or Databricks.
- Edge computing features are constrained compared to specialized edge platforms.
Understanding the result
Scalable open-source MQTT broker for IoT and messaging.
Tool details
- Clearly flagged when a network request is needed.
- No account, no sign-up, and no tracking of your content.
- Powered by (Apache-2.0).
- Built with
- (emqx/emqx)
- License
- Apache-2.0
- Runs locally
- No — requires a network request
- Verification
- Not yet verified
- Input
- Query
- Output
- Text
Built with emqx/emqx. OpenToolVault provides the discovery and browser interface while crediting the original project maintainers.
- Built with
- License
- Apache-2.0
Open-source project
OpenToolVault is an independent directory. We are not affiliated with or endorsed by this project.
References
- / — GitHub Repository
Upstream project · GitHub
- Apache-2.0 License
Upstream project
Frequently asked
What is EMQX and what problems does it solve?
EMQX is an open-source MQTT platform that solves challenges in scaling IoT and AI data streaming. It enables secure, low-latency communication between millions of devices and cloud services, addressing issues like unreliable connectivity, data processing bottlenecks, and integration complexity. It is used in industries such as automotive, manufacturing, and AI to transform raw device data into actionable insights.
How does EMQX handle real-time data streaming?
EMQX processes and streams real-time data by acting as a central MQTT broker that routes messages between devices and cloud platforms. It supports high-throughput scenarios with sub-ms latency, using features like message filtering, load balancing, and horizontal scaling. Data is processed at the edge or in the cloud, ensuring minimal delays for applications like autonomous vehicles and industrial automation.
How do I set up an EMQX broker for IoT devices?
Deploy EMQX via its cloud service, self-managed platform, or open-source installation. Configure the broker to accept MQTT connections from devices, set up authentication rules, and define topic subscriptions. Use the web console to monitor device activity and manage message routing. For edge scenarios, deploy lightweight agents to process data locally before sending it to the cloud.
How does EMQX compare to alternatives like Mosquitto or AWS IoT?
EMQX differs from Mosquitto by offering enterprise-grade scalability, advanced analytics integration, and support for AI agents. Compared to AWS IoT, EMQX provides more flexibility for hybrid deployments and lower costs for self-managed use cases. It also excels in handling massive device counts and low-latency requirements, making it better suited for complex IoT ecosystems.
How do I troubleshoot connection issues between devices and EMQX?
Check network connectivity, verify MQTT credentials, and ensure devices are using the correct broker address and port. Use the EMQX web console to monitor device status and inspect message logs. For TLS/SSL issues, validate certificate configurations. If devices fail to connect, review firewall rules and ensure the broker is properly configured for client authentication.