Open-source alternatives to Windows Classic Samples

Borderless-Gaming is a borderless window manager and desktop window controller designed to remove window borders from applications. It functions as a game windowing utility that converts windowed video games into borderless windows to simulate a fullscreen experience. The tool focuses on gaming multitasking workflows by eliminating the delays associated with switching between fullscreen applications and other active programs. It maximizes the usable screen area by removing window decorations from both games and general desktop applications. The system handles window management by forcing win

WinDynamicDesktop is a Windows desktop wallpaper manager and time-based wallpaper scheduler. It functions as a customizable theme engine that automatically rotates background images throughout the day to match the current time. The tool is a scriptable desktop background utility, allowing the execution of external scripts to add custom logic to the rotation behavior. It supports the import of custom theme files and compressed archives to manage community-created visual sets. The application covers the management of a theme library, including the ability to create, organize, and remove custom

noMeiryoUI is a Windows system utility designed to customize operating system fonts. It serves as a registry editor and personalization tool that allows users to override standard interface typography across different versions of Windows. The tool modifies the default fonts used in menus, title bars, and message boxes to improve readability and visual consistency. It achieves this by writing specific font mappings and values directly to the Windows Registry and using system calls to refresh the user interface without requiring a reboot. The application provides global typography control for

WindowsInternals is a CPU stress testing tool and a research project designed to illustrate the underlying mechanisms of the Windows kernel and system architecture. It functions as an educational resource for studying how the Windows operating system manages internal processes and hardware resources. The project focuses on Windows OS research and system resource profiling. It provides a collection of source code and examples used to reveal the internal workings of the operating system and monitor how it handles high processing demands to identify stability issues and performance bottlenecks.

Gui Inspect Tool is a diagnostic utility designed for examining Windows graphical interface hierarchies, monitoring accessibility events, and inspecting window styles. It functions as a desktop application inspection tool that reveals window hierarchies, handle values, styles, and system-level properties of running Windows applications. The software provides capabilities for traversing accessibility tree hierarchies to extract element properties and structural user interface nodes. It includes real-time event hooking to intercept and log asynchronous accessibility and window messages as they

WinUI Gallery is a comprehensive reference application and component showcase for the Windows desktop platform. It provides a collection of interactive examples and reusable interface patterns designed to demonstrate the implementation of native controls and layout structures within Windows applications. The project serves as a practical guide for applying the Fluent Design System, offering a centralized resource for developers to explore how to build consistent, accessible, and responsive user interfaces. By providing both visual demonstrations and the underlying code, it illustrates how to

This project is a shell extension and enhancement tool for the Windows file manager. It provides a tabbed browsing interface and folder organization utilities to the native explorer. The tool enables visual folder navigation through hover-based previews of directory contents and image snapshots. It also includes a mechanism to integrate supplemental utilities, such as file operation helpers and status bars, directly into the shell interface. The software achieves these enhancements through native system API integration, shell-extension hooking, and dynamic UI overlays that render over existi

WinMemoryCleaner is a Windows RAM optimizer and memory management utility. It reclaims physical memory by flushing standby lists, working sets, and file caches using native Windows system functions. The tool operates across several modes, including a portable application with a system tray monitor, a command-line interface for script integration, and a headless system service for continuous background operation. It supports instant optimization via customizable global keyboard shortcuts. Automation capabilities include scheduling regular cleanups based on fixed time intervals or triggering t

This repository is a collection of reference implementations and code samples for building Windows desktop applications using the Windows Presentation Foundation framework. It provides a sample library focused on desktop window management, declarative user interface layouts, and the Model-View-ViewModel architectural pattern. The collection includes practical examples of XAML-based declarative interfaces and the synchronization of data between business logic and the user interface via the Model-View-ViewModel pattern. It offers reference implementations for applying accessibility standards an

ModernWpf is a UI framework and control toolkit for the Windows Presentation Foundation framework. It provides a collection of modern styles and specialized interface elements designed to build current-generation desktop application layouts. The library functions as a theme and XAML styling system that allows for the updating of standard interface elements. It includes built-in support for managing visual themes, specifically enabling the switch between light, dark, and high contrast modes. The project covers general WPF user interface design, including the implementation of styled input, na

TAICHI-flet is an AI-integrated resource browser and Windows desktop application built with Flet. It serves as a centralized multimedia hub and web content aggregator designed to combine artificial intelligence utilities with tools for searching and accessing movies, music, and software. The application enables the aggregation of resources from multiple sources, including cloud storage drives and external web addresses. It provides specialized tools for streaming and downloading anime and music, reading online novels with text-to-speech playback, and automating operations on the Windows opera

Duilib is a Windows UI library and custom rendering engine designed for building high-performance graphical user interfaces for PC client software. It functions as a DirectUI framework that allows for the creation of bespoke layouts and tailored interface elements without relying on standard operating system controls. The framework implements a direct user interface approach to render custom graphical elements. This allows for the design of non-standard visual layouts for desktop applications, including those that require high-performance rendering for resource-heavy software. The system cov

Greenshot is a Windows screen capture tool and productivity suite designed to capture screen regions, specific windows, or full displays as image files. It functions as an image annotation editor and external image uploader, allowing users to process visual assets before saving or sharing them. The project emphasizes automated workflows through the use of global hotkeys and command-line routing to send captured files to external applications. It supports high-resolution displays with specific scaling for high DPI screens to ensure visual consistency. The software provides capabilities for im

Ditto is a Windows clipboard manager and extension that functions as a local history database. It records a sequence of copied text and images to prevent data loss when the clipboard is overwritten. The tool allows for the retrieval and re-insertion of previously copied items and text snippets into active application windows. It monitors the operating system for clipboard change events to automatically capture and store new data. The system utilizes a local database for persistence and indexing, enabling the storage of formatted text and binary image data across sessions.

ammo.js is a JavaScript port of the Bullet physics engine, compiled via Emscripten to provide a high-performance physics library for the browser. It functions as a 3D rigid body engine and an Emscripten compiled library that enables complex physical computations using WebAssembly and JavaScript. The project provides specialized simulation capabilities for soft body physics, modeling the deformation of flexible materials like cloth and rubber, and a vehicle dynamics engine for calculating the mechanics of wheeled vehicles. The simulation surface also covers rigid body dynamics for non-deforma

xdotool is a command-line utility for X11 desktop automation that simulates keyboard and mouse input and manages application windows. It functions as a scriptable tool that maps sequential text instructions to low-level library calls to control the X11 graphical environment. The project enables the generation of synthetic keyboard and mouse events to automate interactions with graphical user interfaces. It also acts as a window manager controller, allowing users to programmatically move, resize, focus, and organize application windows and virtual desktops. The tool covers a wide range of cap

Bili.Uwp is a third-party video client and native desktop application for the Windows operating system. It functions as a Universal Windows Platform application designed to provide access to Bilibili video streams and community content outside of a standard web browser. The project focuses on Bilibili desktop access, enabling Windows video streaming through a dedicated interface. It integrates with the Windows UI Library to provide a native system experience for browsing and interacting with platform content.

Bili.Copilot is a native Windows desktop client for Bilibili that integrates large language models to provide AI-enhanced media browsing and video summarization. It functions as a media browser and video summarizer, enabling users to generate concise overviews of videos and articles by processing subtitles and text. The application allows users to interact with AI models to query specific information and evaluate content within videos. These capabilities are delivered through a native Windows interface built with the Windows App SDK and WinUI. The software covers media management and content

VNote is a native C++ desktop application designed as a Markdown note-taking platform and digital knowledge base. It provides a high-performance environment for organizing, editing, and structuring information using a Markdown-based content model. The application distinguishes itself with a Vi-style input mode for text navigation and a system of priority-based event hooks for extensibility. It further supports customization through CSS-based theme styling and global hotkey mapping. Broad capabilities include personal knowledge management via full-text and tag search, digital mind mapping, an

Sakura is a native desktop text editor built directly on the Win32 API for the Windows operating system, with specialized support for Japanese character sets and encodings. It provides a dedicated environment for writing and modifying software source code and text files. The application renders text directly onto native window handles and utilizes window subclassing for custom keyboard input behavior and text selection. It handles massive log and data files efficiently by mapping large text streams directly into virtual memory segments. Additionally, it parses programming code against regular

This project is a C++ learning resource and study guide consisting of structured notes and programming examples. It provides practical implementations and exercise solutions covering core language syntax, data types, and control flow. The repository features specialized samples for object-oriented design, including class inheritance, polymorphism, and abstract classes. It includes demonstrations of memory management techniques such as dynamic allocation, move semantics, and placement new, as well as template programming examples for creating generic functions and data structures. The codebas

This is an educational tutorial that walks through implementing a complete JSON library from scratch in C. The project covers the full data lifecycle of JSON, including parsing text into structured in-memory representations, validating input against the specification, serializing data back into standard JSON output, and providing structured access to elements within parsed arrays and objects. The implementation is built around a hand-written recursive descent parser that processes JSON text by matching grammar rules to build a structured data tree. Parsed values are stored in a tagged union r

Cataclysm-DDA is an open-world survival game and turn-based roguelike set in a post-apocalyptic world. It functions as a simulation where players manage resources, engage in combat, and handle character progression in an environment where time only advances when the player takes an action. The project includes a procedural world generator that creates randomized, persistent environments and city layouts, ensuring unique maps for every new game session. The simulation covers tactical movement and resource management through turn-based strategy gameplay. It also provides options for personali

HVM2 is a high-performance execution environment for pure functional programs, implemented as a systems-level runtime in Rust. It functions as a massively parallel functional runtime that uses interaction combinators to achieve automatic parallelism across multi-core CPUs and GPUs. The project distinguishes itself by using a graph-rewriting computational model to execute programs via local reduction rules, which eliminates the need for manual locks or atomic operations. It employs beta-optimal reduction and lazy evaluation to optimize higher-order functions and eliminate redundant computation

HowToBeAProgrammer is a comprehensive software engineering career guide and professional development framework. It serves as a curated-knowledge repository and handbook designed to help programmers acquire technical habits and social competencies necessary for professional advancement. The project distinguishes itself by integrating technical craftsmanship with a detailed manual for technical leadership and organizational navigation. It provides specific strategies for career progression, such as compensation negotiation, promotion readiness, and the management of professional boundaries to p

Habitat-sim is a high-performance 3D simulation platform designed for training and benchmarking embodied AI agents within photorealistic indoor and outdoor environments. It serves as a simulator for AI and robotics, providing a system for generating synthetic data and simulating physical interactions. The project is distinguished by a native C++ core that enables high-throughput simulation and a rendering pipeline using physically based rendering and baked global illumination. It features a navigation system based on pre-computed navigation meshes to ensure collision-free traversal and a rigi

Agent-S is a multimodal AI agent and LLM desktop automation framework designed to control operating systems through graphical user interface interactions. It functions as a computer use interface, utilizing vision-language grounding to translate natural language goals into precise screen coordinates and system actions. The project differentiates itself by combining structured accessibility tree inspection with vision-based element localization. It manages cross-application workflows by mapping conceptual descriptions to physical pixels and simulating low-level keyboard and mouse events to mov