MQTT.js

JavaScript client for MQTT protocol enabling pub-sub messaging over TCP/IP.

EstablishedOpen SourceLow lock-in

Visit Website ↗Compare ⇄

Pricing

See website

Flat rate

Adoption

→Stable

License

Open Source

Data freshness

—

Overview

What is MQTT.js?

MQTT.js is a JavaScript library that provides a client implementation of the MQTT protocol, allowing developers to easily integrate publish/subscribe-based messaging into their applications. It's particularly useful for IoT projects and real-time data exchange scenarios.

Key differentiator

“MQTT.js stands out as a lightweight, efficient JavaScript client for MQTT protocol with strong support across both browser and Node.js environments.”

Capability profile

Strength Radar

Honest assessment

Strengths & Weaknesses

↑ Strengths

Lightweight and efficient MQTT client implementation in JavaScript

Supports both browser and Node.js environments

Extensive documentation and community support

Flexible configuration options for connecting to MQTT brokers

Event-driven API for handling message subscriptions

Fit analysis

Who is it for?

✓ Best for

Developers building real-time web applications that require efficient pub-sub messaging over MQTT

Teams working on IoT projects needing a lightweight JavaScript client for MQTT communication

Projects requiring cross-platform support (browser and Node.js) with consistent API

✕ Not a fit for

Scenarios where the application requires extremely low latency beyond what MQTT can provide

Use cases that demand proprietary protocols not supported by MQTT

Cost structure

Pricing

Free Tier

None

Starts at

See website

Model

Flat rate

Enterprise

None

Performance benchmarks

How Fast Is It?

Next step

Get Started with MQTT.js

Step-by-step setup guide with code examples and common gotchas.

View Setup Guide →