Best MQTT is an MQTT v5/v3.1.1 protocol implementation that works on all major platforms Unity3D supports, including WebGL.MQTT is an OASIS standard messaging protocol for the Internet of Things (IoT). It is designed as an extremely lightweight publish/subscribe messaging transport that is ideal for connecting remote devices with a small code footprint and minimal network bandwidth. MQTT today is used in a wide variety of industries, such as automotive, manufacturing, telecommunications, oil and gas, etc.Best MQTT is a high quality implementation of the latest version of the protocol.Best MQTT built on top of Best HTTP/2 to use the best available solution under Unity3D. By using Best HTTP/2 it can target the same platforms, including WebGL and use it for TCP and WebSocket transports, reduce memory usage with BufferPools, secure connecctions with TLS and use its logging infrastructure.Features:Full support of MQTT v5 and v3.1.1 protocol featuresTCP and WebSocket transports with and without TLSQoS 0, 1 and 2 support on all platforms including WebGLPersistent SessionsAll source code includedName and password authenticationClient certificate authentication using the TLS Security AddonWildcard topic filtersLast willsEasy to use APISupported OSs/Platforms:WebGLMobile platforms (Android, iOS)Desktop (Windows, Linux, MacOS)Helpful links:DocumentationWebGL DemoDiscord Channel