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🔧 Mosquitto

Mosquitto

An Open Source MQTT Broker

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Overview

Eclipse Mosquitto is a widely used open-source message broker that implements the MQTT protocol versions 5.0, 3.1.1, and 3.1. Its lightweight nature makes it suitable for deployment on a wide range of devices, from low-power single-board computers to full servers. Mosquitto is known for its simplicity, reliability, and strong community support. It provides essential MQTT features and can be extended or integrated into larger systems, making it a popular choice for developers and hobbyists.

✨ Key Features

  • Lightweight and small footprint
  • Supports MQTT v5.0, v3.1.1, v3.1
  • TLS encryption for secure communication
  • Authentication via username/password, and plugins
  • Bridge support to connect to other brokers
  • C, C++, Python, and other client libraries available

🎯 Key Differentiators

  • Extremely lightweight and resource-efficient
  • Simple to install and configure
  • Strong community backing as an Eclipse IoT project

Unique Value: Provides a simple, lightweight, and reliable open-source MQTT broker that is easy to deploy on almost any hardware, making it ideal for development, education, and resource-constrained environments.

🎯 Use Cases (5)

Hobbyist IoT projects Smart Home automation Prototyping and development Embedded systems with resource constraints Educational purposes

✅ Best For

  • Core messaging component in Home Assistant
  • Data communication for embedded Linux devices

💡 Check With Vendor

Verify these considerations match your specific requirements:

  • Large-scale enterprise deployments requiring high-availability clustering and dedicated support
  • Complex data processing and integration without custom development

🏆 Alternatives

EMQX HiveMQ RabbitMQ (with MQTT plugin)

Far more lightweight than enterprise brokers like HiveMQ or EMQX. It is focused purely on the MQTT protocol, unlike multi-protocol brokers like RabbitMQ.

💻 Platforms

Linux Windows macOS Raspberry Pi Docker

🔌 Integrations

Custom integrations via plugins Home Assistant Node-RED Various IoT platforms

💰 Pricing

Contact for pricing
Free Tier Available

Free tier: Completely free and open source (Eclipse Public License).

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