Mqtt Client GitHub Repositories (2026) · Open Source Tools

Pure asyncio MQTT 3.1.1 and 5.0 for Python 3.10+, with deterministic subscription routing, bounded queues, and correlation-safe request/response.

C/C++ server and network library, including coroutine,redis client,http/https/websocket,mqtt, mysql/postgresql/sqlite client with C/C++ for Linux, Android, iOS, MacOS, Windows, Harmony,etc..

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

Kotlin MQTT client for Android

An MQTT client written in and for PHP.

MQTT Client/Server framework for v5 and v3.1.1 protocols

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

A Swift NIO MQTT v3.1.1 and v5.0 Client

An Android MQTT client that regularly publishes messages to notify about the device's presence