FreeSCADA is a cloud-based SCADA/HMI for Modbus TCP/IP PLCs and devices. Build screens, watch live values update in real time — from any computer, tablet or phone.
No SCADA licences · no browser plug-ins · works with any Modbus TCP/IP device.
A complete web HMI that lives in the cloud — set it up once and reach your plant from anywhere.
Nothing to install to view your plant. Open a browser, log in and your screens are there — desktop or mobile.
Connect to PLCs and devices that speak Modbus TCP/IP. Read holding registers, monitor status.
Upload your own backgrounds and symbols, then place numeric displays, buttons and animated graphics tied to your tags.
Values refresh live on screen.
Invite your team and control who can view, and configure with per-user permission levels.
Every account gets a private workspace identified by a unique Client ID that links your devices to your screens.
Setup is quick — create an account, connect your PLC with our connector app, then build your screens.
Sign up in seconds. You receive a unique Client ID for your private workspace.
Run the FreeSCADA connector app on a PC or gateway on your network and point it at your PLC.
Add tags, upload images and place displays, buttons and animated symbols on your screens.
Open your browser to see live values.
FreeSCADA talks to your equipment through a small connector application you install on a Windows PC or gateway inside your own network — right next to the PLC. It reads your Modbus device and keeps your cloud workspace up to date.
📥 Download the connector from the main menu once you're signed in to your workspace.
A look at the configuration workflow and finished operator screens.
Log in to the web application
Configure the PLC IP address
Add / edit the Modbus range
Add / edit tags
Add / edit users
Add / edit screens
Add / edit images
Add / edit screen assets
Live operator screen
Live operator screenCreate your free workspace, connect your first PLC and build your first screen today.
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