Free SCADA software for Windows

Scadora is a complete SCADA and HMI package that costs nothing to install or run. There is no license key, no tag limit and no runtime time limit, and commercial use is allowed.

Download free Quick start

What "free" means here

No license key or activation
No limit on tags, screens or clients in the program
Any number of computers
Commercial and production use allowed under the terms of use
Closed source: the program is free, the source code is not published

What you get

One installer includes everything needed to build and run a project.

Process screen editor with 312 industrial symbols
Server with S7, Modbus TCP, Melsec and OPC UA drivers
Historian, trends, alarms and an alarm journal
Operator station and a web HMI for browsers and phones
JavaScript on screens and on the server, SQL databases through ODBC and SQLite

Pump station screen running in a browser

Try it without a PLC

The installer can add a demo project with a built-in simulator. Press Start in the runtime and open the operator screen to see live values, alarms and trends with no hardware connected.

Know the limits

Scadora is young and developed actively, so test it on a bench before commissioning.

Windows only, 64-bit
No redundant server pair
Traffic between server and clients is not encrypted, so use an isolated network
No MQTT driver yet