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Best Open Source gui Libraries

A curated list of the most popular GitHub repositories tagged with gui. Select any project to visualize its architecture and dive into the codebase using RepoMind's AI engine.

#1ocornut/imgui

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

71,476C++
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#2dbeaver/dbeaver

Free universal database tool and SQL client

48,754Java
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#3NaiboWang/EasySpider

A visual no-code/code-free web crawler/spider易采集：一个可视化浏览器自动化测试/数据采集/爬虫软件，可以无代码图形化的设计和执行爬虫任务。别名：ServiceWrapper面向Web应用的智能化服务封装系统。

44,099JavaScript
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#4HeyPuter/puter

🌐 The Internet Computer! Free, Open-Source, and Self-Hostable.

39,555JavaScript
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#5appsmithorg/appsmith

Platform to build admin panels, internal tools, and dashboards. Integrates with 25+ databases and any API.

39,136TypeScript
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#6GyulyVGC/sniffnet

Comfortably monitor your Internet traffic 🕵️‍♂️

32,816Rust
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#7yewstack/yew

Rust / Wasm framework for creating reliable and efficient web applications

32,426Rust
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#8tqdm/tqdm

:zap: A Fast, Extensible Progress Bar for Python and CLI

30,972Python
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#9AvaloniaUI/Avalonia

Develop Desktop, Embedded, Mobile and WebAssembly apps with C# and XAML. The most popular .NET UI client technology

30,094C#
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#10iced-rs/iced

A cross-platform GUI library for Rust, inspired by Elm

29,574Rust
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#11flameshot-org/flameshot

Powerful yet simple to use screenshot software :desktop_computer: :camera_flash:

29,337C++
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#12emilk/egui

egui: an easy-to-use immediate mode GUI in Rust that runs on both web and native

28,172Rust
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#13reflex-dev/reflex

🕸️ Web apps in pure Python 🐍

28,143Python
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#14fyne-io/fyne

Cross platform GUI toolkit in Go inspired by Material Design

27,942Go
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#15KurtBestor/Hitomi-Downloader

:cake: Desktop utility to download images/videos/music/text from various websites, and more.

27,476Python
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#16lvgl/lvgl

Embedded graphics library to create beautiful UIs for any MCU, MPU and display type.

22,795C
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#17slint-ui/slint

Slint is an open-source declarative GUI toolkit to build native user interfaces for Rust, C++, JavaScript, or Python apps.

21,798Rust
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#18JetBrains/compose-multiplatform

Compose Multiplatform, a modern UI framework for Kotlin that makes building performant and beautiful user interfaces easy and enjoyable.

18,829Kotlin
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#19Sycnex/Windows10Debloater

Script to remove Windows 10 bloatware.

18,767PowerShell
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#20rizinorg/cutter

Free and Open Source Reverse Engineering Platform powered by rizin

18,416C++
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#21mahmoud/awesome-python-applications

💿 Free software that works great, and also happens to be open-source Python.

17,734Jupyter Notebook
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#22v2rayA/v2rayA

A web GUI client of Project V which supports VMess, VLESS, SS, SSR, Trojan, Tuic and Juicity protocols. 🚀

14,455Go
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#23vurtun/nuklear

A single-header ANSI C gui library

14,185C
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#24webview/webview

Tiny cross-platform webview library for C/C++. Uses WebKit (GTK/Cocoa) and Edge WebView2 (Windows).

13,915C++
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#25PySimpleGUI/PySimpleGUI

Python GUIs for Humans! PySimpleGUI is the top-rated Python application development environment. Launched in 2018 and actively developed, maintained, and supported in 2024. Transforms tkinter, Qt, WxPython, and Remi into a simple, intuitive, and fun experience for both hobbyists and expert users.

13,711Python
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#26isl-org/Open3D

Open3D: A Modern Library for 3D Data Processing

13,330C++
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#27TomSchimansky/CustomTkinter

A modern and customizable python UI-library based on Tkinter

13,157Python
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#28mayswind/AriaNg

AriaNg, a modern web frontend making aria2 easier to use.

12,880JavaScript
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#29illacloud/illa-builder

Low-code platform allows you to build business apps, enables you to quickly create internal tools such as dashboard, crud app, admin panel, crm, cms, etc. Supports PostgreSQL, MySQL, Supabase, GraphQL, MongoDB, MSSQL, Rest API, Hugging Face, Redis, etc. Automate workflows with schedule or webhook. Open source Retool.

12,373TypeScript
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#30ImageOptim/ImageOptim

GUI image optimizer for Mac

9,733HTML
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#31MrS0m30n3/youtube-dl-gui

A cross platform front-end GUI of the popular youtube-dl written in wxPython.

9,450Python
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#32nodegui/nodegui

A library for building cross-platform native desktop applications with Node.js and CSS 🚀. React NodeGui : https://react.nodegui.org and Vue NodeGui: https://vue.nodegui.org

9,189C++
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#33farag2/Sophia-Script-for-Windows

:zap: The most powerful open source tweaker on GitHub for fine-tuning Windows 10 & Windows 11

8,976PowerShell
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#34FyroxEngine/Fyrox

3D and 2D game engine written in Rust

8,884Rust
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#35maxence-charriere/go-app

A package to build progressive web apps with Go programming language and WebAssembly.

8,856Go
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#36sveinbjornt/Sloth

Mac app that shows all open files, directories, sockets, pipes and devices in use by all running processes. Nice GUI for lsof.

8,831Objective-C
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#37ashawkey/stable-dreamfusion

Text-to-3D & Image-to-3D & Mesh Exportation with NeRF + Diffusion.

8,807Python
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#38Ultimaker/Cura

3D printer / slicing GUI built on top of the Uranium framework

6,892Python
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