SOFTWARE LICENSE GUIDE
EMQX
EMQX is an open-source MQTT broker designed for IoT applications. Its core edition is available under the Apache License 2.0.
What it does
It facilitates real-time communication between IoT devices by implementing the MQTT protocol, enabling high-performance message routing and processing.
Who it may suit
Developers and organizations building IoT solutions that require a scalable and reliable MQTT broker, especially those utilizing its open-source core.
Free tier and license
The core edition of EMQX is open source and free to use.
Limitations to check
While the core edition is open source, enterprise features are available only via commercial licensing.
Licensing notes
The core edition of EMQX is open source under the Apache License 2.0. Enterprise features are available through commercial licensing.
Verification details
Last licensing verification recorded: 2026-10-28.
Directory record last updated: 2026-09-04. These are separate dates: a record update does not necessarily mean the publisher's terms changed.
AI-assisted summaries may be incomplete or outdated. Confirm licensing, pricing, and commercial-use rights in the official sources before making a business decision.
Frequently asked questions
Is EMQX truly free?
Yes, the core edition of EMQX is open source and free to use under the Apache License 2.0.
Can I use EMQX for commercial purposes?
Yes, the open-source core edition can be used for commercial purposes under the Apache License 2.0. Enterprise features require commercial licensing.
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