Top DESIGN GitHub Repositories & Tools (2026)

A Material Design 3 Expressive Digital Wellbeing App

Q&A-based community knowledge-sharing software

An enhancement and extension library for Avalonia, bringing the Ant Design design language, modern controls, theming, native integrations, and cross-platform UI capabilities to .NET desktop apps.

Game engine for 2D and 3D projects with entity component system (ECS) and data-oriented design

GPL Electronic Design Automation

OpenELIS Global — open-source Laboratory Information System (LIS/LIMS) for clinical and public-health labs in 25+ countries. Java/Spring + React (Carbon), FHIR R4 native, Docker.

NodaMoney provides a library that treats Money as a first class citizen and handles all the ugly bits like currencies and formatting.

Read, edit, and share plain text and Markdown.

An accessible & scalable color tokens system using LCH & OKLCH color system for Swift. Supports iOS, iPadOS, WatchOS, tvOS & visionOS.

A multi-framework control library of https://github.com/microsoft/fluentui-system-icons

An event sourcing library, complete with all the essential features, powered by the reliable Doctrine ecosystem and focused on developer experience.

Unity runtime for Rive

Toolkit for domain driven design (DDD) in Laravel. Provides artisan commands to generate domain models, DTOs, view models, value objects, and much more.

Android launcher with deep customization

Design data, including design tokens, component schemas, and tooling for Spectrum, Adobe's design system.

Self-hosted functional language with explicit effects. Compiles to JVM bytecode, C, and NVIDIA GPU kernels via cuTile.

cx is a C-family systems programming language for game development and high-performance software: data-oriented, productive, no GC, compiles to native code via LLVM/C.

Minimalistic audiobook player

💎 An accessible, theme-ready design system built for learning applications and Open edX.

Moonveil is an extremely customizable and Usability Hyprland Dotfiles