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Screenshot of Eclipse Mosquitto website

// screenshot of mosquitto.org ↗

DEVOPS & INFRASTRUCTURE · PRO TIER

Eclipse Mosquittopro

Mosquitto is the Eclipse Foundation's MQTT broker — lightweight, embedded-friendly, the reference implementation of MQTT 3.1.1 / 5.0. Single binary (or container), handles thousands of concurrent connections on minimal hardware. The default MQTT broker for Home Assistant, OpenHAB, and most IoT projects.

Install via WHMCS → Visit mosquitto.org ↗
⚙️ DevOps & Infrastructure Min 128 MB RAM Port 1883 (tcp) Tier pro
// What it is

A closer look.

Mosquitto is the Eclipse Foundation's MQTT broker — lightweight, embedded-friendly, the reference implementation of MQTT 3.1.1 / 5.0. Single binary (or container), handles thousands of concurrent connections on minimal hardware. The default MQTT broker for Home Assistant, OpenHAB, and most IoT projects.

Where EMQX targets industrial-scale (millions of connections), Mosquitto targets home / small-business IoT with simplicity first.

// Use cases

What it's for.

Concrete scenarios where teams pick Eclipse Mosquitto over the SaaS alternative.

◆

Home automation hub

Home Assistant / OpenHAB MQTT broker

◈

Small-scale IoT

sensor networks, device telemetry

◇

Embedded systems

runs on Raspberry Pi, ESP32 dev boards

▣

Real-time messaging

pub/sub for chat, notifications, dashboards

▦

Edge gateways

local broker that bridges to cloud MQTT

// Who it's for

Built for these teams.

If your team profile matches one of these, Eclipse Mosquitto is a strong fit out of the box.

Profile A

Home automation enthusiasts

running Home Assistant / OpenHAB

Profile B

IoT prototypers

developing device-to-cloud telemetry

Profile C

Embedded engineers

building MQTT-based product firmware

Profile D

Small businesses

with sensor / IoT deployments under 10k devices

Profile E

Educators

teaching MQTT concepts with the reference implementation

// Differentiators

Why teams pick Eclipse Mosquitto.

When evaluating self-hosted options for this category, here are the dimensions on which Eclipse Mosquitto consistently lands above the alternatives.

  • ✓EPL-2.0 / EDL-1.0 — fully open
  • ✓Reference implementation — the canonical MQTT broker
  • ✓Tiny footprint — runs on a Raspberry Pi Zero
  • ✓Production-grade — battle-tested in millions of home automation deployments
  • ✓MQTT 5.0 support — latest protocol features
  • ✓Multi-platform — Linux, Windows, macOS, embedded
// Integrations

Connects to.

The stack you'll plug Eclipse Mosquitto into — services, protocols, and adjacent apps in the BluixApps catalog.

◇
Home automation
Home Assistant, OpenHAB, Domoticz, Tasmota
◈
MQTT clients
every MQTT library works with Mosquitto
◆
TLS support
TLS / mTLS for secure connections
▣
Auth backends
password file, dynsec plugin, custom plugins
▦
Bridge mode
bridge to other MQTT brokers (cloud, peer brokers)
▩
WebSocket support
MQTT over WebSocket for browser clients
▼
Plugin API
C plugin API for custom auth / persistence
// Adoption & deployment

Notable users & community

  • Default broker in Home Assistant + OpenHAB documentation
  • Eclipse Foundation stewardship
  • Backed by Eclipse IoT working group
  • Long-running OSS project (>10 years)
  • Reference implementation cited in MQTT specifications

What we ship

  • Docker compose: Mosquitto + persistent config volume
  • Pinned eclipse-mosquitto:2.0 (release-tagged)
  • Auth enabled by default; passwd file mounted from config
  • TLS configuration documented in install report
  • MQTT + MQTT-over-WebSocket ports exposed
  • Persistent volume for retained messages + config
  • Backup hook covers config + persistence database
// Tips & operations

Run it properly.

Operational guidance from running this in production — what to do before you scale, what to lock down, what surprises people.

// PERFORMANCE
Always enable auth
anonymous brokers get hijacked by bots within hours
// SECURITY
TLS for non-LAN clients
anything over the internet needs TLS, not plain MQTT
// OPERATIONS
Persistent sessions
enable for clients that need offline message delivery
// RELIABILITY
Topic ACLs
restrict what topics users can publish/subscribe to
// DEPLOYMENT
Backup config + persistence file
simple flat files; standard backup works
// SCALING
Log review
connection attempts indicate brute-force; monitor + alert
128
// min ram (MB)
1
// min disk (GB)
1883
// access port
tcp
// protocol
pro
// bluixapps tier
1883:1883 · eclipse-mosquitto:latest
// docker image

Project resources

Official sitemosquitto.org ↗
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