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Coreflux HUB home screen with central artwork, bottom app dock with the home icon selected, and status details in the header

Why Use the Coreflux HUB?

You need a single place to manage your broker without installing extra tools or connecting via the command line. The Coreflux HUB gives you an interface to explore topics, create and edit LoT (Language of Things) definitions, configure routes, and monitor system status—all from one dashboard. It is available as a browser interface when running via Docker, or as a standalone desktop application for Windows and Linux.
The Coreflux HUB is available in two ways: bundled with the Docker image (access from your browser after mapping ports 8080 and 8443), or as a standalone desktop application for Windows x64, Linux x64, and Linux ARM64—download the executable, run it, and the HUB opens. See Installation for platform-specific setup.
Like a control panel for your broker. The HUB puts Data Viewer, LoT Editor, route management, and system tools in one place so you can deploy and debug without extra tooling.

When to Use the HUB

  • Manage everything from the HUB — Configure your broker, deploy logic, and set up data routes without installing desktop tools
  • Go from idea to deployment in minutes — Write and deploy Actions, Models, and Rules directly in the built-in editor
  • Monitor your system in real time — See device connections, data flow, and system health at a glance
  • Diagnose issues fast — Inspect live MQTT messages and run broker commands from one interface

Prerequisites

The HUB is available in two ways depending on how you run the broker.
To reach the HUB from your browser, map the HUB ports when starting the container:
PortProtocolDescription
8080HTTPHUB (unencrypted)
8443HTTPSHUB (TLS)
docker run -d --name coreflux_broker -p 1883:1883 -p 5000:5000 -p 8080:8080 -p 8443:8443 coreflux/coreflux-mqtt-broker:latest
If these ports are not mapped, the broker still runs normally—you simply won’t be able to open the HUB. See Installation for the full Docker setup.

Accessing the HUB

Open your browser and navigate to:
  • Local: http://localhost:8080
  • Remote: http://<broker-ip>:8080
For HTTPS, use port 8443 instead.

How the HUB Is Organized

The HUB is built around five apps. Each app groups related tools so you can switch between tasks without leaving the browser.

MQTT

Explore topics, publish messages, and view connected clients.

LoT Editor

Create and edit Actions, Models, and Rules in the browser.

Dashboards

Build live panels with gauges, charts, and controls bound to broker data.

Routes

Add, configure, and monitor routes with templates or LoT code.

System

Broker configuration, user management, trace logs, and command console.

MQTT

Browse live data flowing through your broker. The MQTT app includes a Data Viewer for subscribing to topics and publishing test messages, and a Connected Clients view to see which devices are online.
Coreflux HUB MQTT app showing Data Viewer with topic tree, publish panel, and Connected Clients list with client details

LoT Editor

Write and deploy logic directly in the HUB. The LoT Editor provides tabs for Actions, Models, and Rules, each with a code editor — no external tools required.
Coreflux HUB LoT Editor showing the Actions tab, action list, and code editor with LoT syntax for a Heartbeat Action

Dashboards

Design operator-facing screens from a component library—gauges, charts, industrial symbols, and controls—and bind each widget to live data on your broker. The Dashboard Manager lists your panels; open one to preview or use it full screen for walls and shared links.
Coreflux HUB panel view titled S7 DB1 Dashboard with an orange gauge reading 100.0 and a ScanCounterTrend live line chart on a dark background

Routes

Connect your broker to databases, PLCs, and external systems. The Routes app shows each route as a card with a live status indicator, and lets you configure routes visually or in LoT code.
Coreflux HUB Routes app showing multiple route cards in a row with type labels, green status dots, and toolbar icons on each card

System

Administer the broker itself. The System app provides Broker Configuration, User Management, a Command Console for direct broker commands, and Broker Logs for real-time diagnostics.
Coreflux HUB System app showing System Config with General, Network, and Binding fields, plus the overlay app menu listing Data Viewer, LoT Editor, Routes, and system tools

Next Steps

Data Viewer

Subscribe to topics and publish messages from the browser.

LoT Editor

Deploy your first Action without VS Code.
Last modified on May 28, 2026