Top GUI GitHub Repositories & Tools (2026)

Create web-based user interfaces with Python. The nice way.

Language Savant. If your repository's language is being reported incorrectly, send us a pull request!

A tool for generating code based on a GraphQL schema and GraphQL operations (query/mutation/subscription), with flexible support for custom plugins.

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

The most comprehensive Claude Code guide: agentic workflows, hooks, skills, MCP servers, quizzes, and production-ready templates. 430K+ lines.

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

OPNsense GUI, API and systems backend

Ad-blocker and privacy guard for Windows, macOS and Linux.

A WiFi security auditing software

Database Subsetting and Relational Data Browsing Tool.

Minimalistic Homebrew GUI made with Go, Wails and React.

Parallel OS, with GUI, Terminal, OO Assembler, Class libraries, C-Script compiler, Lisp interpreter and more...

Pixel art editor made with Zig

C++ Library for Audio Digital Signal Processing

Free open-source desktop app that scrapes JAV metadata and generates NFO + cover art for Jellyfin, Emby & Kodi. No Docker, no CLI — one-click install on Windows & macOS. 8 built-in sources + optional Metatube federation (30+ providers), actress collections, cross-language tag aliases, and a REST API for AI agents.

U++ is a C++ cross-platform rapid application development framework focused on programmer's productivity. It includes a set of libraries (GUI, SQL, Network etc.), and integrated development environment (TheIDE).

Dear ImGui apps made simple: desktop, mobile, and web from one codebase. Minimal code. Maximally readable.

DSL Framework consisting of a DSL Engine and a Data-Binding Library used in Glimmer DSL for SWT (JRuby Desktop Development GUI Framework), Glimmer DSL for Opal (Pure Ruby Web GUI), Glimmer DSL for LibUI (Prerequisite-Free Ruby Desktop Development GUI Library), Glimmer DSL for Tk (Ruby Tk Desktop Development GUI Library), Glimmer DSL for GTK (Ruby-GNOME Desktop Development GUI Library), Glimmer DSL for XML (& HTML), and Glimmer DSL for CSS

Lightweight native Windows GUI client for Xray core, built with WinUI 3

eepp is an open source cross-platform game and application development framework heavily focused on the development of rich graphical user interfaces.