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An open source message broker that implements the MQTT protocol
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What is Mosquitto?

It is lightweight and is suitable for use on all devices from low power single board computers to full servers.. The MQTT protocol provides a lightweight method of carrying out messaging using a publish/subscribe model. This makes it suitable for Internet of Things messaging such as with low power sensors or mobile devices such as phones, embedded computers or microcontrollers.
Mosquitto is a tool in the Message Queue category of a tech stack.
Mosquitto is an open source tool with 6.5K GitHub stars and 2K GitHub forks. Here’s a link to Mosquitto's open source repository on GitHub

Who uses Mosquitto?

17 companies reportedly use Mosquitto in their tech stacks, including QRPoint, Nina, and SCMC-CMU.

87 developers on StackShare have stated that they use Mosquitto.

Mosquitto Integrations

Pros of Mosquitto
Simple and light

Mosquitto Alternatives & Comparisons

What are some alternatives to Mosquitto?
Apache ActiveMQ is fast, supports many Cross Language Clients and Protocols, comes with easy to use Enterprise Integration Patterns and many advanced features while fully supporting JMS 1.1 and J2EE 1.4. Apache ActiveMQ is released under the Apache 2.0 License.
A Node.js MQTT broker, which can be used as a Standalone Service or embedded in another Node.js application.
It is fully open source and licensed under the Apache Version 2.0. It implements both MQTT V3.1 and V3.1.1 protocol specifications, and supports MQTT-SN, CoAP, WebSocket, STOMP and SockJS at the same time.
VerneMQ is a distributed MQTT message broker, implemented in Erlang/OTP. It's open source, and Apache 2 licensed. VerneMQ implements the MQTT 3.1, 3.1.1 and 5.0 specifications.
RabbitMQ gives your applications a common platform to send and receive messages, and your messages a safe place to live until received.
See all alternatives

Mosquitto's Followers
244 developers follow Mosquitto to keep up with related blogs and decisions.