Comparison of MQTT implementations
| Industry | Software, Networking |
|---|---|
| Products | MQTT brokers and clients |
MQTT represents an ISO standard (ISO/IEC PRF 20922) that implements a publish-subscribe messaging protocol over TCP/IP networks. It is tailored for remote communication scenarios where minimal code size or constrained bandwidth is essential, utilizing a message broker as its core component.
The following analysis is based on the latest stable releases of the listed implementations, concentrating on features pertinent to MQTT.
Overview
Presented below is a summary table of various MQTT libraries and implementations, emphasizing critical business-related attributes such as the creators, licensing terms, supported programming languages, implementation types, release timelines, and countries of origin.
| Implementation | Developer | Open source | License | Ownership | Programming Language(s) | Category | Latest Stable Version and Release Date | Country of Origin |
|---|---|---|---|---|---|---|---|---|
| Adafruit IO | Adafruit | Yes | MIT License | Adafruit | Ruby, Node.js, Python, Go | Client | 2.0.0 | United States |
| Amlen | Eclipse Foundation | Yes | EPL 2.0 | Eclipse Foundation | C | Broker | 1.0.0.0 / 2022-05-25 | |
| Azure Event Grid MQTT broker | Microsoft | No | Commercial License | Microsoft | C, C#, Java, JavaScript (Node.js), Python, Go | Broker | 2023-06-01-preview / 2023-05-25 | United States |
| CoreFlux | CoreFlux Portugal Lda. | No | Commercial License | CoreFlux Portugal Lda. | C, C#, Java, JavaScript (Node.js), Go | Broker | 1.4.5 / 2025-01-10 | Portugal |
| EMQX | EMQ Technologies Inc. | Yes | Apache License 2.0 | EMQ Technologies Inc. | Erlang | Broker | V5.3.1 / 2023-11-14 | China |
| EMQX Enterprise | EMQ Technologies Inc. | No | Commercial License | EMQ Technologies Inc. | Erlang | Broker | V5.3.1 / 2023-11-14 | China |
| NanoMQ | EMQ Technologies Inc. | Yes | MIT License | EMQ Technologies Inc. | C | Broker and Client | 0.5.8 | China |
| MQTT X | EMQ Technologies Inc. | Yes | Apache License 2.0 | EMQ Technologies Inc. | TypeScript | Client | v1.7.1 | China |
| FairCom Edge | FairCom Corporation | No | Commercial License | FairCom Corporation | C | Broker | 3.0.0 / 2020-11-01 | United States |
| FlashMQ | Wiebe Cazemier | Yes | OSL3 | Wiebe Cazemier | C++ | Broker | 1.22.0 / 2025-06-11 | Netherlands |
| flespi | Gurtam | No | Commercial License | Gurtam | C | Broker | 2018-04-05 | Belarus |
| GridServer | GRID System S.A.S | No | Commercial License | GRID System S.A.S | Pascal, Delphi | Broker | 2019-09-15 | France |
| HiveMQ MQTT Client | HiveMQ | Yes | Apache License 2.0 | HiveMQ | Java | Client | 1.3.1 / 2023-04-12 | Germany |
| HiveMQ Community Edition | HiveMQ | Yes | Apache License 2.0 | HiveMQ | Java | Broker | 2025.4 / 2025-07-01 | Germany |
| HiveMQ | HiveMQ | No | Commercial License | HiveMQ | Java | Broker | 4.42.0 / 2025-07-29 | Germany |
| IBM WIoTP Message Gateway | IBM | No | Commercial License | IBM | C | Broker | 5.0.0.1 / 2019-02-29 | |
| JoramMQ | ScalAgent D.T. | No (based on LGPL open-source broker) | Commercial License | ScalAgent D.T. | Java | Broker | 1.19.3 / October 2024 | France |
| KMQTT | Davide Pianca | Yes | MIT License | Davide Pianca | Kotlin | Client and Broker | 0.4.1 / 2023-04-12 | Italy |
| LV-MQTT-Broker | Francois Normandin (Open Source Project) | Yes | 0-BSD License | LabVIEW Open Source Project | LabVIEW | Broker and Client | 3.2.0 | Canada |
| M2Mqtt | Eclipse Foundation | Yes
Eclipse Public License Eclipse Foundation C# Client 4.3.0 / 2017-05-20 Canada | ||||||
| Machine Head
ClojureWerkz style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes Creative Commons Attribution Alexander Petrov et al. Clojure Client 1.0.0 / 2017-03-05 | ||||||||
| Mongoose Library
Cesanta style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes GPLv2 or Commercial Cesanta C/C++ Client and Broker 7.9 / 2023-01-24 Ireland | ||||||||
| moquette
Andrea Selva style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes Apache License 2.0 Andrea Selva Java Broker 0.16 / 2023-01-06 Italy | ||||||||
| Mosquitto
Eclipse Foundation style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes Eclipse Public License & BSD Eclipse Foundation C Client and Broker 2.0.18 / 2023-03-03 United Kingdom | ||||||||
| MQTT🤖
Pascal de Kloe style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes Public Domain nobody Go Client v1.0.0 / 2020-02-22 Netherlands | ||||||||
| MQTT-C
Liam Bindle style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes MIT License Liam Bindle C Client 1.1.5 / 2021-04-01 Canada | ||||||||
| mqttools
Erik Moqvist style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes MIT License Erik Moqvist Python Client and Broker 0.34 / 2020-01-20 Sweden | ||||||||
| net-mqtt
Dustin Sallings style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes BSD 3-Clause License Dustin Sallings Haskell Client 0.6 /2019-10-12 United States | ||||||||
| OpenRemote MQTT Broker
OpenRemote style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes AGPLv3 OpenRemote Java Broker 3.0.1 /2021-03-10 United States | ||||||||
| Paho MQTT
Eclipse Foundation style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes Eclipse Public License & BSD Licenses Eclipse Foundation C, C++, C#, Go, Java, JavaScript, Python, Rust Client 1.4 /2018-06-27 United Kingdom | ||||||||
| PubSub+
Solace Corporation style="background:#FFC7C7;color:black;vertical-align:middle;text-align:center;" class="table-no"|No Commercial (with free tier) Solace Corporation C, C#, Java, JavaScript (Node.js), Python, Go Broker 9.8.1 /2021-01-14 Canada | ||||||||
| RMQTT
rmqtt style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes MIT License rmqtt Rust Broker 0.2.20 /2023-11-04 | ||||||||
| Thingstream
Thingstream style="background:#FFC7C7;color:black;vertical-align:middle;text-align:center;" class="table-no"|No Commercial Thingstream C, C++, Java, JavaScript, Python, Go Client and Broker 3.3 /2019-03-14 United Kingdom | ||||||||
| VerneMQ
VerneMQ/Octavo Labs style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes Apache License 2.0 VerneMQ/Octavo Labs Erlang/OTP Broker 2.0 /2024-04-15 Switzerland | ||||||||
| wolfMQTT
wolfSSL style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes GPLv2 and Commercial Licenses wolfSSL C Client 1.11 /2022-01-07 United States | ||||||||
| eMQTT5
Cyril Russo style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes MIT License Cyril Russo C++ Client 1.0 /2020-03-31 France | ||||||||
| Bevywise MQTTBroker
Bevywise Networks style="background:#FFC7C7;color:black;vertical-align:middle;text-align:center;" class="table-no"|No Commercial Bevywise Networks C, Python Broker v1.1 /2018-10-20 India | ||||||||
| OpenHAB MQTT binding
OpenHAB style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes Eclipse Public License OpenHAB Java Client 2.5 /2020-04-21 Germany | ||||||||
| Waterstream
SimpleMatter Srl style="background:#FFC7C7;color:black;vertical-align:middle;text-align:center;" class="table-no"|No Commercial SimpleMatter Srl Kotlin Broker 1.00 Italy | ||||||||
| MQTTDESK MQTT Client
ioCtrl style="background:#FFC7C7;color:black;vertical-align:middle;text-align:center;" class="table-no"|No Commercial ioCtrl Node.js Client v2.1 /2021 India | ||||||||
| MQTTnet
.NET Foundation style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes MIT License .NET Foundation C# Client and Broker v4.x United States | ||||||||
| Boost.MQTT5
Mireo style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes Boost Software License Mireo C++ Client v1.x /2025 Croatia |
For an extensive catalog of MQTT implementations, refer to the GitHub repository.
Protocol Compatibility
Multiple versions of the MQTT protocol have been formalized by various entities:
- MQTT-SN v1.2, developed by IBM.
- MQTT v3.1, created by Eurotech and IBM.
- MQTT v3.1.1, standardized by OASIS.
- MQTT v5.0, also standardized by OASIS.
The following table provides an overview of MQTT protocol support among different implementations, including their compatibility with SSL/TLS and TCP. Utilizing SSL/TLS is crucial for encrypting MQTT communication, which otherwise occurs in an unencrypted form.
| Implementation | MQTT-SN v1.2 | MQTT 3.1 | MQTT 3.1.1 | MQTT 5.0 | SSL/TLS | TCP | WS/WSS | ||
|---|---|---|---|---|---|---|---|---|---|
| Amlen | Yes | Yes | Yes | Yes | Yes | Yes | |||
| Azure Event Grid MQTT broker | Yes | Yes | Yes | Yes | Yes | ||||
| CoreFlux | Yes | Yes | Yes | Yes | Yes | Yes | |||
| EMQX | Yes | Yes | Yes | Yes | Yes | Yes | Yes | ||
| FairCom Edge | Yes | Yes | Yes | Yes | Yes | Yes | |||
| FlashMQ | Yes | Yes | Yes | Yes | Yes | Yes | |||
| flespi | Yes | Yes | Yes | Yes | Yes | Yes | |||
| HiveMQ | Yes (broker only) | Yes | Yes | Yes | Yes | Yes | |||
| IBM WIoTP Message Gateway | Yes | Yes | Yes | Yes | Yes | Yes | |||
| JoramMQ | Yes | Yes | Yes | Yes | Yes | Yes | Yes | ||
| KMQTT | Yes | Yes | Yes | Yes | Yes | ||||
| LMQTT |
via old stack via old stack |
style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes |
|||||||
| LV-MQTT | |||||||||
| M2Mqtt | |||||||||
| Machine Head | |||||||||
| Mongoose | |||||||||
| moquette | |||||||||
| Mosquitto | |||||||||
| MQTT-C | |||||||||
| mqttools | |||||||||
| net-mqtt | |||||||||
| Paho MQTT | (C, Python, Java clients) | ||||||||
| RMQTT | |||||||||
| Solace PubSub+ |
Cite error: The opening |
||||||||
| SharkMQTT | |||||||||
| Thingstream
| |||||||||
| wolfMQTT
| |||||||||
Service quality levels provided
According to the description on the MQTT page, quality of service (QoS) is characterized as:
Quality of service involves mechanisms for prioritizing traffic and managing resource allocation rather than the actual quality achieved. QoS enables assigning varying priorities to applications, users, or data streams, or ensures a guaranteed performance level for a specific data flow.
The defined QoS tiers include:
- Delivery at most once (fire-and-forget)
- Delivery at least once (acknowledged delivery)
- Delivery exactly once (guaranteed delivery)
The following tables outline the extent to which each implementation supports these QoS categories.
| Implementation | 0 | 1 | 2 |
|---|---|---|---|
| Adafruit IO | Yes | Yes | No |
| Amlen | Yes | Yes | Yes |
| Azure Event Grid MQTT broker | Yes | Yes | No |
| CoreFlux | Yes | Yes | Yes |
| EMQX | Yes | Yes | Yes |
| FairCom Edge | Yes | Yes | Yes |
| FlashMQ | Yes | Yes | Yes |
| flespi | Yes | Yes | Yes |
| HiveMQ | Yes | Yes | Yes |
| IBM WIoTP Message Gateway | Yes | Yes | Yes |
| JoramMQ | Yes | Yes | Yes |
| KMQTT | Yes | Yes | Yes |
| LMQTT | Yes | Yes | Yes |
| LV-MQTT | Yes | Yes | Yes |
| M2Mqtt | Yes | Yes | Yes |
| Mongoose | Yes | Yes | Yes |
| moquette | Yes | Yes | Yes |
| Mosquitto | Yes | Yes | Yes |
| MQTT-C | Yes | Yes | Yes |
| mqttools | Yes | No | No |
| net-mqtt | Yes | Yes | Yes |
| Paho MQTT | Yes | Yes | Yes |
| Solace PubSub+ | Yes | Yes | No |
| Implementation | 0 | 1 | 2 |
|---|---|---|---|
| SharkMQTT | Yes | Yes | Yes |
| Thingstream | Yes | Yes | Yes |
| VerneMQ | Yes | Yes | Yes |
| wolfMQTT | Yes | Yes | Yes |
| eMQTT5 | Yes | Yes | Yes |
| Bevywise MQTTBroker | Yes | Yes | Yes |
| Waterstream | Yes | Yes | Yes |
| MqttDesk MQTT Client | Yes | Yes | Yes |
| MQTTnet | Yes | Yes | Yes |
| Boost.MQTT5 | Yes | Yes | Yes |
Portability considerations
This segment outlines technical aspects that affect selection of implementations, tailored for users acquainted with the hardware environments targeted.
| Implementation | Platform prerequisites | Network dependencies | Thread safety support | Cross-compilation capability | Bare metal compatibility |
|---|---|---|---|---|---|
| Adafruit IO | Adafruit Feather Huzzah, ESP8266, Raspberry Pi, Arduino, and any platform compatible with Python, Ruby, or Node.js | "Depends on platform" | |||
| Amlen |
style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes |
style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes |
|||
| CoreFlux |
style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes |
style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes |
style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes | ||
| EMQX |
style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes |
style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes |
style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes | ||
| Faircom Edge |
Linux, MacOS, Windows, Raspberry Pi, Android platforms |
style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes |
style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes |
style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes | |
| flespi |
(no data) |
(no data) |
(no data) |
(no data) |
(no data) |
| HiveMQ |
Java virtual machine (JVM), Linux, macOS, Microsoft Windows, Raspberry Pi |
style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes |
style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes |
style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes | |
| JoramMQ |
Java virtual machine (JVM), Linux, macOS, Microsoft Windows, Raspberry Pi |
style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes |
style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes |
style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes | |
| KMQTT |
Java virtual machine (JVM), Linux, Microsoft Windows, Raspberry Pi |
style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes |
style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes |
(no data) | |
| M2Mqtt |
Any .NET environment (.NET Framework, .NET Compact Framework, .NET Micro Framework), and Windows Runtime |
(no data) |
(no data) | (no data) | (no data) |
| Machine Head | (no data) | (no data) | (no data) | (no data) | |
| mosquitto |
C90 (C version), compatible with Linux, Unix, macOS, Microsoft Windows, and Raspberry Pi platforms. |
(no data) |
style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes |
style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes"|Yes |
(no data) |
| MQTT-C |
ANSI C (C89) |
"Network IO callbacks required" |
Supports single-threaded operation only (thread safe) |
Cross-compilation capable |
Bare metal support available |
| net-mqtt | "Network required" | "Thread safe" | "Cross-compilable" | (no data) | |
| Paho MQTT |
ANSI C (C client), |
(no data) | (no data) | "Thread safe for C and C++ clients" | "Cross-compilable for C and C++ clients" |
| SharkMQTT |
ANSI C (C89) |
(no data) | "Thread safe" | "Cross-compilable" | "Bare metal supported" |
| wolfMQTT | "Network IO callbacks required" | "Thread safe" | "Cross-compilable" | "Bare metal supported" | |
| eMQTT5 |
Linux, Unix, macOS, Microsoft Windows, ESP32, STM32 (with lwIP and Mbed TLS), built with C++11 |
"BSD socket implementation needed" | "Thread safe" | "Cross-compilable" | "Bare metal supported" |
| Bevywise MQTTBroker |
Linux, Unix, macOS, Microsoft Windows, Raspberry Pi platforms. |
(no data) | (no data) | (no data) | "Bare metal supported" |
| MqttDesk |
Linux, Unix, macOS, Microsoft Windows, Raspberry Pi platforms. |
(no data) | (no data) | (no data) | (no data) |
General requirements
The table below presents essential implementation specifics for a range of MQTT solutions, emphasizing build environments, platform prerequisites, and compatible operating systems to assist in informed business deployment choices.
| Implementation | Build tools | Platform requirements | Supported operating systems |
|---|---|---|---|
| Adafruit IO | |||
| Amlen | Make, Ant | Linux-based systems | CentOS, Red Hat Enterprise Linux |
| CoreFlux | Linux, Unix, macOS, Windows, Raspberry Pi platforms | CentOS, NixOS, Debian, Docker containers, Ubuntu, Red Hat Enterprise Linux, macOS, Windows 10/7 editions, Raspbian | |
| EMQX | Erlang/OTP R19+ (required for source compilation) | Linux, Unix variants, macOS, Windows, Raspberry Pi hardware | CentOS, Debian, Docker environments, macOS, Ubuntu, Red Hat Enterprise Linux, Windows 10/7 versions, Raspbian |
| FairCom Edge | Visual Studio, Make, CMake, gcc compiler | C compiler supporting ANSI C/C89 or newer standards | Linux distributions, macOS, Windows platforms, Raspbian OS, Android devices |
| flespi | Cloud-hosted service (operating system independent) | ||
| HiveMQ | Linux and Unix systems, macOS, Windows OS, Raspberry Pi devices | CentOS, Debian releases, Docker setups, Ubuntu distributions, Red Hat Enterprise Linux versions, macOS editions, Windows 10/7 platforms, Raspbian OS | |
| IBM WIoTP Message Gateway | Linux environments | CentOS distributions, Docker containers, Red Hat Enterprise Linux versions | |
| JoramMQ | Maven build system with Java support | Linux and Unix platforms, macOS systems, Windows OS versions, Raspberry Pi hardware | CentOS releases, Debian distributions, Docker environments, Ubuntu versions, Red Hat Enterprise Linux editions, macOS systems, Windows 10/7 platforms, Raspbian OS |
| KMQTT | Gradle with Kotlin language support | Linux OSes and JVM platforms; Windows and Raspberry Pi supported | Compatible with Linux and Windows operating systems |
| M2Mqtt | Visual Studio IDE | Any platform supporting .NET Framework variants or WinRT | Compatible with Windows 98 and newer versions; includes Windows Phone 8.1 |
| Machine Head | Maven and Leiningen (Clojure language) | Leiningen version 2 required | Supported on macOS and Debian/Ubuntu Linux distributions |
| mosquitto | Make and CMake build tools | Complies with C90 standard | BSD variants, Linux distributions, macOS systems, QNX OSes and Windows platforms |
| MQTT-C | Optional use of Make or CMake | Requires ANSI C/C89 or later compliant compiler | Suitable for bare metal environments as well as Linux/macOS/Windows systems |
| net-mqtt | stack based on Haskell language | GHC compiler necessary | |
| Paho MQTT | Utilizes Autotools, CMake,gmake,gcc/g++, Maven for Java clients | ANSI C for C client; C++11 for C++ client; JVM/Android for Java client | Operating system compatibility varies by programming language; refer to official Eclipse Paho downloads for details. |
| Solace PubSub+ | Supports Linux distributions, macOS and Windows OS | Compatible with CentOS, Debian releases,Docker containers,KVM virtualization,Ubutnu,RHEL ,macOS ,Windows 10/7; also available as a cloud-based option | |
| SharkMQTT | Compatible with various build tools including Make | Requires ANSI C/C89 or newer compliant compiler | Operates on bare metal hardware and all major operating system platforms |
| wolfMQTT | Employs Autotools (autoconf/automake), Visual Studio; integrates wolfSSL for SSL/TLS capabilities | ANSI C89 standard compliant | Broad OS compatibility: Windows (Win32/64), Linux/macOS/Solaris/FreeBSD variants/embedded systems/iOS/Android/QNX along with numerous RTOS platforms |
| eMQTT5 | Uses cmake; incorporates Mbed TLS for SSL/TLS support | Built on C++11 standard | Runs on Windows (Win32/64), Linux/macOS/FreeRTOS/FreeBSD variants as well as embedded Linux and Yocto projects |
| Bevywise MQTTBroker | Supports Autotools and Visual Studio builds | Runs on Linux , Unix , macOS , Windows , Raspberry Pi hardware | Compatible with CentOS , Debian , Docker , KVM virtualization , Ubuntu , RHEL , macOS , Windows 32/64 & Server editions , Raspberry Pi ; also offered as Cloud service |
| OpenHAB | Built using Eclipse Java build framework | Supports Linux , Unix , macOS , Windows , Raspberry Pi devices | Compatible with CentOS , Debian , Ubuntu , RHEL , macOS , Windows 32/64 editions , Raspberry Pi |
| MqttDesk | Compatible with Linux , Unix , macOS , Windows , Raspberry Pi platforms | Supports CentOS , Debian , macOS , Ubuntu , RHEL , Windows 10/7 editions , Raspberry Pi OS | |
| MQTTnet | Developed using Visual Studio | Targets .NET Framework environment | Designed for Windows operating system |