Light and Versatile
Graphics Library

LVGL is a C (C++ compatible) library with no external dependencies. It can be compiled to any microcontrollers or microprocessors, with any (RT)OS to drive monochrome, ePaper, OLED or TFT displays, or even monitors.

LVGL is create by 300+ developers, used by 100,000+ people, and supported by major vendors and projects such as Arm, STM32, NXP, Espressif, Nuvoton, Arduino, RT-Thread, Zephyr, NuttX, Adafruit and many more.

To run LVGL all you need is a C compiler, 32kB RAM and 128 kB flash, a frame buffer, and at least an 1/10 screen sized buffer for rendering.

The UI code is 100% portable. It's easy to move the UI to a new MCU or MPU in the middle of a project. You can even develop the UI on PC and use the exact same UI code on the target device.

LVGL comes with 30+ built-in widgets, such as Button, Label, Slider, Chart, Keyboard, Meter, Arc, Table and many more.

A flexible style system with ~100 style properties (e.g. radius, opacity, gradient, border, shadow, etc.) allows you to customize any part of the widgets (e.g. background, scrollbar, indicator, knob, etc) in any state (normal, pressed, check, focused, etc).

You can use powerful layout engines to automatically size and position the widgets in a responsive way.

The texts are rendered with UTF-8 encoding supporting CJK, Thai, Hindi, Arabic, Persian writing systems. Word wrapping, kerning, text scrolling, sub-pixel rendering, Pinyin-IME Chinese input, Emojis in texts are also available out of the box.

SquareLine Studio is an easy-to-use drag-and-drop UI editor tool for LVGL which allows even for designer to create fully functional UIs. The developers only need to add the business logic.

Unique features like testing the UI immediately without compiling, modifying properties while the UI is running, exporting platform independent C or MicroPython code, and its great price makes SquareLine Studio a perfect choice for both hobbyists and professionals.

SquareLine Studio runs on Windows, Linux and MacOS as well. You can try it out in a 30 days trial period without even registering to the website. Just download, install and run it.

With 15+ years of experience in the user interface and graphics industry we can help you the take your UI to the next level.

Our in-house graphics designers are experts in creating beautiful modern designs which fit to your product and the resources of your hardware.

We can also implement your UI based on the design you or we have created. You can be sure that we will make the most out of your hardware and LVGL. If a feature or widget is missing from LVGL, don't worry, we will implement it for you.

We can support you with consulting as well to avoid pricey and time consuming mistakes during the UI development.

For companies who are offering development boards, or production ready kits we do board certification which shows how board can run LVGL.