About VerneMQ
VerneMQ is a high-performance, distributed MQTT broker based on Erlang/OTP. It scales horizontally and vertically on commodity hardware to support a high number of concurrent publishers and consumers while maintaining low latency and fault tolerance. The broker is open source and enterprise support is available.
Key features
- Scales horizontally and vertically on commodity hardware
- Supports high number of concurrent publishers and consumers
- Maintains low latency and fault tolerance
- Built on Erlang/OTP for highly scalable messaging
- Provides CLI tools, integration APIs, and plugins
- Includes built-in plugins for file-based authentication
Good fit for
- Mobile messaging with lower overhead than XMPP
- Connecting IoT field devices to data centers and apps
- Smart infrastructure for cities, homes, and transportation
VerneMQ: questions and answers
- What is VerneMQ used for?
- VerneMQ is a distributed MQTT broker that scales horizontally and vertically on commodity hardware. It is a good fit for mobile messaging with lower overhead than XMPP; connecting IoT field devices to data centers and apps; and smart infrastructure for cities, homes, and transportation.
- Is VerneMQ open source?
- Yes. VerneMQ is open source under the Apache-2.0 licence. Its source code is on GitHub at vernemq/vernemq and is written mainly in Erlang.
- Is VerneMQ free?
- Yes. VerneMQ is open source, so the software itself is free to use.
- Can I self-host VerneMQ?
- Yes. VerneMQ can be self-hosted on your own server or infrastructure.
- What is VerneMQ an alternative to?
- VerneMQ is an open-source alternative to Particle, AWS IoT Core, Azure IoT Hub and ThingWorx. Other open-source alternatives to Particle include DGIoT, EMQX and Kaa.
- Is VerneMQ actively maintained?
- Yes. The most recent commit to VerneMQ was on 8 October 2026, and the latest release is 2.2.1, published on 17 September 2026. The project has 3.6k stars on GitHub.
Open-source alternatives to VerneMQ
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DGIoT
Home Automation & IoT
Open Source Industrial IoT Platform | 300+ protocols | 6-min deploy | Modbus OPC UA MQTT |
Apache-2.0vs AWS IoT Core★ 4.9k
EMQX
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Kaa
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Node-RED
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Low-code programming for event-driven applications
Apache-2.0vs Microsoft Power Automate★ 24k
SaaS alternatives to VerneMQ
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Particle
Home Automation & IoT
IoT platform with devices, cloud and fleet management tools
SaaS
AWS IoT Core
Home Automation & IoT
Managed AWS service for connecting IoT devices to the cloud
SaaS
Azure IoT Hub
Home Automation & IoT
Managed Azure service for secure two-way communication with IoT devices
SaaS
ThingWorx
Home Automation & IoT
Industrial IoT platform from PTC for building connected applications
SaaS
Cumulocity
Home Automation & IoT
IoT platform for device management, analytics and integration from Software AG
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8call
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AI receptionist for small businesses that answers calls, captures leads and books appointments
SaaS

