MistServer

MistServer

MistServer is an open-source, lightweight MQTT server designed for IoT and embedded devices. It provides a simple yet powerful MQTT broker with low resource usage, high scalability, and high performance.
MistServer image
mqtt iot embedded-devices

MistServer: Open-Source MQTT Server

An open-source, lightweight MQTT server for IoT and embedded devices with low resource usage, high scalability, and high performance

What is MistServer?

MistServer is an open-source MQTT server written in pure ANSI C. It was designed from the ground up to be lightweight, fast, and scalable, ideal for use in IoT devices, embedded systems, and other resource-constrained environments. It is lightweight and has a small memory footprint, making it suitable even for microcontrollers.

Yet despite its small footprint, MistServer provides a full-fledged MQTT 3.1.1 compliant server with all major features including QoS levels, last will and testament, retained messages, persistent sessions, TLS/SSL encryption, web sockets, bridging and clustered nodes. It uses very little CPU and RAM while still achieving high throughput measured in tens of thousands of messages per second.

MistServer is scalable and can handle up to tens of thousands of simultaneous clients when deployed in clustered mode across multiple nodes. This makes it a great fit from small IoT devices all the way up to large enterprise systems. Its authentication features and pluggable architecture provide flexibility to integrate with external authentication providers.

In summary, MistServer delivers high performance, small resource usage, excellent scalability, and an extensible architecture in a tiny package. Its liberal Apache 2 license allows it to be used in commercial products as well. If you need an MQTT server that's fast, lightweight, and highly scalable, MistServer checks all the boxes.

MistServer Features

Features

  1. Lightweight and low resource usage
  2. High performance and scalability
  3. Built specifically for IoT and embedded devices
  4. Open source and free
  5. Supports MQTT protocol
  6. Easy to install, configure and integrate
  7. Cross-platform support

Pricing

  • Open Source
  • Free

Pros

Lightweight and efficient

Scales well for large number of clients and messages

Suitable for resource constrained devices

Free and open source

Active development community

Stable and reliable

Easy to get started

Cons

Limited built-in security features

Lacks advanced MQTT broker features

Minimal documentation

Limited support options


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