Key features

LVGL provides all the features to build smartphone-like UIs with a small memory footprint, scalable across MCUs, MPUs and vendors.

Graphical features

• Powerful building blocks such as buttons, charts, lists, sliders, images, etc.
• Advanced graphics with animations, anti-aliasing, opacity, smooth scrolling
• Various input devices such as touchpad, mouse, keyboard, encoder, etc.
• Multi-language support with UTF-8 encoding
• Multi-display support, even with mixed color formats
• Fully customizable graphic elements with CSS-like styles

Scalability and Portability

• Hardware independent: use with any microcontroller or display
• Scalable: able to operate with little memory (64 kB Flash, 16 kB RAM)
• OS, external memory and GPU are supported but not required
• Single frame buffer operation even with advanced graphic effects
• Written in C for maximal compatibility (C++ compatible)
• Simulator to start embedded GUI design on a PC without embedded hardware
• User code developed under simulator can be shared with firmware to make UI development more efficient.

Developer Experience

• Tutorials, examples, themes for rapid GUI design
• Documentation is available online

Licensing

• Free and open-source under MIT license
• Free for commercial projects

Advanced tooling

LVGL Pro, the UI Editor tooling of LVGL, dramatically speeds up UI development and team work:

• Develop UI much faster in XML
• Effectively build cross-product UI libraries
• Collaborate better with your team by sharing projects in the browser
• Easily add and run UI tests
• Integrate well with AI and Figma based workflows
• Export code in C or load XML based UI at runtime

Learn more about the licensing options at https://lvgl.io/pro/pricing