idea4good/GuiLite

✔️The smallest header-only GUI library(4 KLOC) for all platforms

C++

7,776

447 commits

updated Oct 22, 2025

www.youtube.com/watch?v=grqXEz3bdC0

See the code

README

Welcome to GUI-lite

The smallest header-only GUI library (4 KLOC) for all platforms.

Why GuiLite

中文

Lightweight

✂️Small: 4,000+ lines of C++ code, zero dependency, header-only(GuiLite.h)
⚡Fast: High Rendering performance, even work on MCU
👫🏻Compatible: Work smoothly with 3rd party frameworks(Qt/MFC/Winform/Cocoa/Web)
⚙️️Hardware Minimum Requirements:

Processor Disk/ROM space Memory
24 MHZ 29 KB 9 KB

Processor	Disk/ROM space	Memory
24 MHZ	29 KB	9 KB

Cross platform

Supported OSes: iOS/macOS/WatchOS, Android, Linux, Windows, RTOS... or MCU without OS
Supported languages: C/C++, Swift, Java, Javascript, C#, Golang...
Supported 3rd party libraries: Qt, MFC, Winforms, CoCoa...

Hero features

☁️Cloud + IoT Solution: master your IoT business all over the world
🔣Multi-language, supports UTF-8;📀Playback Video
🔨Toolkit for building font/image resources
📐Layout GUI WYSIWYG
📊Code Telemetry and Analysis in real time
📦Supports 3D and Web
🐋Run in docker with a single command: sudo docker run -it --privileged -v /dev:/dev-share idea4good/gui-lite:latest bash /run.sh

Easy to learn and support

Even a C beginner could master GUI-lite quickly. The source code only uses basic C++ features (class, virtual function). We chose C++ as it could make the code size significantly smaller and easier to read.

📚Documentation
📈Learning steps
1. Build GUI-lite library
2. Build/Debug HelloXXX demos
3. Read/Modify HelloXXX/UIcode/UIcode.cpp code
4. Read/Modify widgets code
5. Read/Modify core code
6. Build your GUI framework
📞Reach out us if you have any questions you are welcomed to our developer family.
🀄️Mirror repository in China

Demo wall

Zero dependency, 100% build pass & runnable
Click the demo you like, and run it on your hardware
Most of the demos have about 100 lines of UI code, the code repository is GuiLiteSamples

MCU platform

_{3D on STM32}	_{Wave on STM32}	_{Particle on STM32}	_{Star on STM32}
_{3D wave on STM32}	_{Keyboard on STM32}	_{Mario on STM32}	_{3D circle on STM32}
_{3D donut on STM32}	_Timer	_{Molecule move}	_{Pendulum effect}

IoT feature

_{Monitor IoT device on cloud}	_{Code Telemetry & Analysis in real time}
_{Track IoT device over the world}

Multi-language, Design tool and video

_{Lattice Font}	_{Freetype Font}
_{Layout GUI}	_{Render JPG file quickly}
_{Play video with FFmpeg}

Widgets & Controller

_{Emulate Windows UI}	_{Scroll widget}
_{How to use widgets}	_{3D Nets on Windows/Linux}
_{Transparent dialog}	_{Swipe view}

Cross platform

_{HostMonitor on Windows}	_{HostMonitor on Mac}	_{HostMonitor on Android}
_{HostMonitor on Windows Mixed Reality}	_{HostMonitor on Linux}	_{3D on Web}
_{3D on Web}	_{HostMonitor on iPhone}	_{How display work}

Apple platform

_{3D on Apple Watch}

_{Wave on Apple Watch}

_{Particle on iPhone}

📞Community Channel

Thanks for the help from the community, you all make GUI-lite better! And welcome to any new friend to join us.

@Twitter
QQ group:

_{開發群🔑：875721211}

cpp

cross-platform

display

docker

embedded

graphics-library

gui

header-only

iot

iot-platform

mcu

microcontroller

Project health

Overall

2.8/10

Maintained

0/10

Code review

0/10

OpenSSF Scorecard

Significant stargazers

(top 24 of 38)

wenhu

1 followers · starred Feb 2019

Egon Elbre

606 followers · starred Feb 2019

Alexandre Défossez

842 followers · starred Mar 2020

Miguel Grinberg

12,947 followers · starred Feb 2019

Similar repos

lvgl/lvgl

LVGL is a free, full-featured embedded UI library for devices from small MCUs to 3D-capable MPUs,…

24,858

lc-soft/LCUI

C library for building user interfaces

4,345

AllenDang/giu

Cross platform rapid GUI framework for golang based on Dear ImGui.

2,792

webui-dev/webui

Use any web browser or WebView as GUI, with your preferred language in the backend and modern web…

4,625

slint-ui/slint

Slint is an open-source declarative GUI toolkit to build native user interfaces for Rust, C++,…

24,158

huanfeng/wind-ui-rust

基于 Rust 的跨平台轻量级 GUI 库

ocornut/imgui

Dear ImGui: Bloat-free Graphical User interface for C++ with minimal dependencies

76,605

vczh-libraries/GacUI

Native C++ UI library, cross-platform, MVVM and data binding, XML description, multi-language,…

2,700

idea4good/GuiLite

✔️The smallest header-only GUI library(4 KLOC) for all platforms

C++

7,776

447 commits

updated Oct 22, 2025

www.youtube.com/watch?v=grqXEz3bdC0

See the code

README

Welcome to GUI-lite

The smallest header-only GUI library (4 KLOC) for all platforms.

Why GuiLite

中文

Lightweight

✂️Small: 4,000+ lines of C++ code, zero dependency, header-only(GuiLite.h)
⚡Fast: High Rendering performance, even work on MCU
👫🏻Compatible: Work smoothly with 3rd party frameworks(Qt/MFC/Winform/Cocoa/Web)
⚙️️Hardware Minimum Requirements:

Processor Disk/ROM space Memory
24 MHZ 29 KB 9 KB

Processor	Disk/ROM space	Memory
24 MHZ	29 KB	9 KB

Cross platform

Supported OSes: iOS/macOS/WatchOS, Android, Linux, Windows, RTOS... or MCU without OS
Supported languages: C/C++, Swift, Java, Javascript, C#, Golang...
Supported 3rd party libraries: Qt, MFC, Winforms, CoCoa...

Hero features

☁️Cloud + IoT Solution: master your IoT business all over the world
🔣Multi-language, supports UTF-8;📀Playback Video
🔨Toolkit for building font/image resources
📐Layout GUI WYSIWYG
📊Code Telemetry and Analysis in real time
📦Supports 3D and Web
🐋Run in docker with a single command: sudo docker run -it --privileged -v /dev:/dev-share idea4good/gui-lite:latest bash /run.sh

Easy to learn and support

📚Documentation
📈Learning steps
1. Build GUI-lite library
2. Build/Debug HelloXXX demos
3. Read/Modify HelloXXX/UIcode/UIcode.cpp code
4. Read/Modify widgets code
5. Read/Modify core code
6. Build your GUI framework
📞Reach out us if you have any questions you are welcomed to our developer family.
🀄️Mirror repository in China

Demo wall

Zero dependency, 100% build pass & runnable
Click the demo you like, and run it on your hardware
Most of the demos have about 100 lines of UI code, the code repository is GuiLiteSamples

MCU platform

_{3D on STM32}	_{Wave on STM32}	_{Particle on STM32}	_{Star on STM32}
_{3D wave on STM32}	_{Keyboard on STM32}	_{Mario on STM32}	_{3D circle on STM32}
_{3D donut on STM32}	_Timer	_{Molecule move}	_{Pendulum effect}

IoT feature

_{Monitor IoT device on cloud}	_{Code Telemetry & Analysis in real time}
_{Track IoT device over the world}

Multi-language, Design tool and video

_{Lattice Font}	_{Freetype Font}
_{Layout GUI}	_{Render JPG file quickly}
_{Play video with FFmpeg}

Widgets & Controller

_{Emulate Windows UI}	_{Scroll widget}
_{How to use widgets}	_{3D Nets on Windows/Linux}
_{Transparent dialog}	_{Swipe view}

Cross platform

_{HostMonitor on Windows}	_{HostMonitor on Mac}	_{HostMonitor on Android}
_{HostMonitor on Windows Mixed Reality}	_{HostMonitor on Linux}	_{3D on Web}
_{3D on Web}	_{HostMonitor on iPhone}	_{How display work}

Apple platform

_{3D on Apple Watch}

_{Wave on Apple Watch}

_{Particle on iPhone}

📞Community Channel

Thanks for the help from the community, you all make GUI-lite better! And welcome to any new friend to join us.

@Twitter
QQ group:

_{開發群🔑：875721211}

cpp

cross-platform

display

docker

embedded

graphics-library

gui

header-only

iot

iot-platform

mcu

microcontroller

Project health

Overall

2.8/10

Maintained

0/10

Code review

0/10

OpenSSF Scorecard

Significant stargazers

(top 24 of 38)

wenhu

1 followers · starred Feb 2019

Egon Elbre

606 followers · starred Feb 2019

Alexandre Défossez

842 followers · starred Mar 2020

Miguel Grinberg

12,947 followers · starred Feb 2019

Similar repos

lvgl/lvgl

LVGL is a free, full-featured embedded UI library for devices from small MCUs to 3D-capable MPUs,…

24,858

lc-soft/LCUI

C library for building user interfaces

4,345

AllenDang/giu

Cross platform rapid GUI framework for golang based on Dear ImGui.

2,792

webui-dev/webui

Use any web browser or WebView as GUI, with your preferred language in the backend and modern web…

4,625

slint-ui/slint

Slint is an open-source declarative GUI toolkit to build native user interfaces for Rust, C++,…

24,158

huanfeng/wind-ui-rust

基于 Rust 的跨平台轻量级 GUI 库

ocornut/imgui

Dear ImGui: Bloat-free Graphical User interface for C++ with minimal dependencies

76,605

vczh-libraries/GacUI

Native C++ UI library, cross-platform, MVVM and data binding, XML description, multi-language,…

2,700