Free Hmi Graphics Library 2021

Write-Up: Free HMI Graphics Libraries

Designing a Human-Machine Interface (HMI) requires more than just functional code; it demands an intuitive, visually appealing user experience (UX). However, creating custom graphical assets from scratch is time-consuming and expensive.

Whether you are developing an embedded industrial dashboard, a medical device interface, or an IoT consumer product, leveraging free graphics libraries can accelerate development and improve UI consistency. Below is a curated list of the best free HMI graphics libraries and resources available today. free hmi graphics library

Where to Find More Free HMI Assets

• GitHub – Search “hmi symbols” or “industrial svg”
• Open Source Automation – OPC UA + graphics examples
• PLCforum – User-shared libraries (check licenses)
• Inkscape community – Vectorized instrument panels

5. CODESYS Store – Free Packs

If you use CODESYS or any IEC 61131-3 based IDE, their store offers "Freeware" visualization packs. These are not SVGs but native runtime objects. Where to Find More Free HMI Assets

• Includes: Pre-built meters, sliders, and real-time trend viewers.
• License: Royalty-free for CODESYS runtime.
• Best for: PLC-native HMI development.

2. Flaticon’s "Industry & Manufacturing" Collection

While Flaticon is a general repository, their industrial vertical is excellent. You must filter by "Free" licenses. GitHub – Search “hmi symbols” or “industrial svg”

• Includes: Isometric tanks, robotic arms, PLC racks, and electrical panels.
• License: Free with attribution (or sign up for a free account to remove attribution for limited downloads).
• Best for: Quick prototyping and panel designs.

LVGL (Light and Versatile Graphics Library)

• License: MIT License (Free for commercial use).
• Best For: Embedded systems with limited resources (MCUs).
• Description: LVGL is currently the industry standard for free, embedded GUIs. It is hardware-agnostic, meaning it runs on tiny microcontrollers up to powerful Linux boards. It includes a vast library of ready-to-use widgets (buttons, charts, lists) and supports styles similar to CSS.
• Key Feature: A visual drag-and-drop editor (SquareLine Studio) is available to design UIs graphically.

4.2. FOSS SVG Icon Sets (Industrial & HMI-oriented)

• Material Design Icons (Pictogrammers) – MIT license. Huge set including industrial symbols (conveyor, robot, valve).
• FontAwesome (free tier) – CC BY 4.0. Some industrial icons, best for web-based HMI.
• SVG Repo / Remix Icon – Many CC0 or MIT icons of motors, switches, tanks.
• Best for: Custom button images, alarm symbols, dashboard icons.

Noun Project

• Type: Icons.
• License: Creative Commons (requires attribution) or Paid (Royalty-free).
• Usage: An immense library of icons for every conceivable industrial application (valves, pumps, engines, safety warnings).