Top 23 Java Mqtt Projects

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1. Thingsboard

   1 18 19,146 10.0 Java

   Open-source IoT Platform - Device management, data collection, processing and visualization.

   

   Project mention: Real-Time IoT Visualization Essentials | dev.to | 2024-11-14

   2. ThingsBoard: An open-source IoT platform that supports data visualization, remote control, and device management. Its real-time data widgets allow users to track device metrics dynamically. https://thingsboard.io/

2. InfluxDB

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   InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.

   

3. jetlinks-community

   2 1 6,001 8.1 Java

   JetLinks 基于Java8,Spring Boot 2.x ,WebFlux,Netty,Vert.x,Reactor等开发, 是一个全响应式的企业级物联网平台。支持统一物模型管理,多种设备,多种厂家,统一管理。统一设备连接管理,多协议适配(TCP,MQTT,UDP,CoAP,HTTP等),屏蔽网络编程复杂性,灵活接入不同厂家不同协议等设备。实时数据处理,设备告警,消息通知,数据转发。地理位置,数据可视化等。能帮助你快速建立物联网相关业务系统。

   

   Project mention: JetLinks: Open-Source Reactive IoT Platform with Multi-Protocol Support | news.ycombinator.com | 2024-08-14

4. paho.mqtt.android

   3 1 3,006 1.5 Java

   MQTT Android

   

5. Apache ActiveMQ

   4 1 2,364 9.4 Java

   Apache ActiveMQ Classic

   

6. paho.mqtt.java

   5 5 2,211 1.5 Java

   Eclipse Paho Java MQTT client library. Paho is an Eclipse IoT project.

   

   Project mention: MQTT turns 25 (and has taken over the world) | news.ycombinator.com | 2024-10-22

   The eclipse paho MQTT Java client is also terrible, lots of open bugs and terrible API. For my case, I was able to use NATS instead.

   https://github.com/eclipse/paho.mqtt.java/issues

7. AndrOBD

   6 19 1,641 8.9 Java

   Android OBD diagnostics with any ELM327 adapter

   

8. openremote

   7 3 1,428 9.4 Java

   100% open-source IoT Platform - Integrate your devices, create rules, and analyse and visualise your data

   

9. SaaSHub

   www.saashub.com featured

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10. hivemq-community-edition

    8 4 1,122 8.4 Java

    HiveMQ CE is a Java-based open source MQTT broker that fully supports MQTT 3.x and MQTT 5. It is the foundation of the HiveMQ Enterprise Connectivity and Messaging Platform

    

11. Apache ActiveMQ Artemis

    9 2 970 9.8 Java

    Mirror of Apache ActiveMQ Artemis

    

12. hivemq-mqtt-client

    10 2 952 7.8 Java

    HiveMQ MQTT Client is an MQTT 5.0 and MQTT 3.1.1 compatible and feature-rich high-performance Java client library with different API flavours and backpressure support

    

13. tbmq

    11 3 657 9.8 Java

    Open-source, scalable, and fault-tolerant MQTT broker able to handle 4M+ concurrent client connections, supporting at least 3M messages per second throughput per single cluster node with low latency delivery. The cluster mode supports more than 100M concurrently connected clients.

    

    Project mention: How TBMQ Uses Redis for Reliable P2P MQTT Messaging | dev.to | 2025-02-13

    TBMQ sets a new benchmark for self-hosted MQTT brokers, proving its ability to handle one million messages per second for persistent sessions without data loss — even in the event of hardware failures. Designed to eliminate single points of failure and bottlenecks, TBMQ achieves exceptional efficiency through a combination of Redis for persistence, Kafka for message distribution, and a highly optimized broker codebase.

14. zilla

    12 10 595 9.6 Java

    🦎 A multi-protocol edge & service proxy. Seamlessly interface web apps, IoT clients, & microservices to Apache Kafka® via declaratively defined, stateless APIs.

    

15. phonk

    13 26 479 4.6 Java

    PHONK is a coding playground for new and old Android devices

    

16. mqtt-jmeter

    14 1 469 3.8 Java

    MQTT JMeter Plugin

    

17. mqtt-cli

    15 3 339 9.2 Java

    MQTT CLI is a useful command line interface for connecting various MQTT clients supporting MQTT 5.0 and 3.1.1

    

    Project mention: Part 1 - Gathering PM values from the sensor, pushing and saving them to the cloud storage (TCH) | dev.to | 2024-09-02

    # install the mqtt client curl -L -o mqtt-cli-4.31.0.deb https://github.com/hivemq/mqtt-cli/releases/download/v4.31.0/mqtt-cli-4.31.0.deb sudo apt install ./mqtt-cli-4.31.0.deb # push a message to the topic "pm_monitor" mqtt pub \ -h $endpoint_address \ -p 8883 \ --cafile AmazonRootCA1.pem \ --cert gateway.certificate.pem \ --key gateway.private_key.pem \ -t $monitor_topic \ -m "{ \"plant_name\": \"plant-abc\", \"date_time\": 1633036800, \"pm25\": 12.5, \"pm10\": 20.3, \"machine\": { \"name\" : \"machine-one\", \"type\" : \"type-1\", \"code\" : \"mot1\" } }" \ -d -V 5 -q 0

18. ksql-udf-deep-learning-mqtt-iot

    16 1 299 0.0 Java

    Deep Learning UDF for KSQL for Streaming Anomaly Detection of MQTT IoT Sensor Data

    

19. netxms

    17 20 279 9.8 Java

    NetXMS - Open Source network and infrastructure monitoring and management

    

20. tahu

    18 2 241 0.0 Java

    Eclipse Tahu addresses the existence of legacy SCADA/DCS/ICS protocols and infrastructures and provides a much-needed definition of how best to apply MQTT into these existing industrial operational environments.

    

21. Qiscus SDK

    19 0 203 6.7 Java

    Qiscus provide everything you need to power up your app with chats. And it's now made simple.

    

22. mop

    20 3 179 7.2 Java

    MQTT on Pulsar implemented using Pulsar Protocol Handler (by streamnative)

    

    Project mention: High Available Mosquitto MQTT on Kubernetes | news.ycombinator.com | 2025-05-18

    I built a high scale MQTT ingestion system by utilising the MQTT protocol handler for Apache Pulsar (https://github.com/streamnative/mop). I ran a forked version and contributed back some of non-proprietary bits.

    A lot more work than Mosquitto but obviously HA/distributed and some tradeoffs w.r.t features. Worth it if you want to run Pulsar anyway for other reasons.

23. mqttclpro

    21 1 105 0.0 Java

    MQTT Client for android with tasker support

    

24. OEE-Designer

    22 1 100 6.2 Java

    The OEE-Designer is the build time environment for OEE applications.

    

25. TRADFRI2MQTT

    23 1 81 1.8 Java

    MQTT Bridge for IKEA TRÅDFRI Light Gateway

    

26. SaaSHub

    www.saashub.com featured

    SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

    

Java Mqtt related posts

• High Available Mosquitto MQTT on Kubernetes

  1 project | news.ycombinator.com | 18 May 2025

• The streaming bridges — A Kafka, RabbitMQ, MQTT and CoAP example

  6 projects | dev.to | 25 Dec 2024

• Part 1 - Gathering PM values from the sensor, pushing and saving them to the cloud storage (TCH)

  1 project | dev.to | 2 Sep 2024

• Phonk - JavaScript scripting for Android devices

  1 project | news.ycombinator.com | 28 Mar 2024

• New scalable, fault-tolerant, and efficient open-source MQTT broker

  8 projects | news.ycombinator.com | 18 Dec 2023

• Broker times client out while broker is sending client large message.

  2 projects | /r/MQTT | 8 Dec 2023

• Double-Take not getting enough events/images from Frigate?

  2 projects | /r/frigate_nvr | 1 Aug 2023
• A note from our sponsor - SaaSHub
  www.saashub.com | 23 Jun 2025

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