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Eclipse Mosquitto

Open-source MQTT message broker for IoT messaging

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Eclipse Mosquitto is an open-source MQTT message broker that enables lightweight publish/subscribe messaging for IoT devices, sensors, and mobile devices. It supports MQTT versions 5.0, 3.1.1, and 3.1, and includes a C client library and command-line tools. The project is part of the Eclipse Foundation and offers both a free open-source version and a commercial Pro Edition with additional features like high availability, REST APIs, and professional support.

12 alternatives to Eclipse Mosquitto

Ranked by how well each tool replaces Eclipse Mosquitto: shared features, audience, price and popularity.

  1. RabbitMQ

    One broker to queue them all

    Covers 5 of 15 key features.

    Free planOpen source
    66 out of 100 matchFree

  2. Apache ActiveMQ

    Multi-protocol, Java-based open source message broker.

    Covers 1 of 15 key features.

    Open source
    63 out of 100 match—

  3. Eclipse IoT

    Leading open source community for IoT innovation.

    Covers 1 of 15 key features.

    Free planOpen source
    62 out of 100 matchFree

  4. EMQX

    Unified MQTT platform for AI and IoT data streaming

    Covers 1 of 15 key features.

    Free planOpen source
    58 out of 100 match$234/mo

  5. MQTT Explorer

    An all-round MQTT client with a structured topic overview.

    Covers 0 of 15 key features.

    Free planOpen source
    57 out of 100 matchContact sales

  6. Apache Kafka

    Distributed event streaming platform

    Covers 3 of 15 key features.

    Open source
    57 out of 100 match—

  7. Apache Qpid

    Messaging built on AMQP

    Covers 2 of 15 key features.

    Open source
    56 out of 100 match—

  8. Apache RocketMQ

    Distributed messaging and streaming platform for AI and enterprise communication.

    Covers 2 of 15 key features.

    Open source
    55 out of 100 matchFree

  9. Adoptium

    Prebuilt OpenJDK Binaries for Free! The Power of Eclipse Temurin®

    Covers 3 of 15 key features.

    Free planOpen source
    55 out of 100 matchFree

  10. CloudMQTT

    Discontinued MQTT service – now hosted on CloudAMQP

    Covers 0 of 15 key features.

    55 out of 100 match—

  11. Scaleway

    European Cloud & AI provider (as described on the site)

    Covers 1 of 15 key features.

    54 out of 100 match—

  12. Tasmota

    Open source firmware for ESP devices with local control and automation.

    Covers 1 of 15 key features.

    Open source
    54 out of 100 match—