For Traditional HMI Software (FactoryTalk View, WinCC, Wonderware InTouch)

Free HMI graphics libraries have a wide range of applications across various industries, including:

: Provides expert-designed templates and high-quality icons specifically for TIA Portal and WinCC projects. Open Automation Software (OAS) : Offers a library of common industry symbols for HVAC, water/waste water, and industrial applications

For more information on free HMI graphics libraries, check out the following resources:

If you are building a UI on a platform like Qt, WPF, or a proprietary RTOS, you may not need a full framework—just the graphics to populate your buttons.

: While tied to their programming software, the environment is free and includes a wide array of graphical objects for PLCs.

Before diving into the libraries, it is useful to understand the two primary contexts where these graphics are used: