Open-source alternatives to WindowsAppSDK

Maid is a mobile large language model chat client and local runner. It provides a unified interface for interacting with AI models via cloud APIs or by executing model files directly on mobile hardware for offline generation. The project functions as a multi-provider manager that handles API keys and a system for downloading and loading curated model files to the device. It utilizes a provider-agnostic interface to allow switching between local and remote backends. The application includes tools for organizing and exporting chat histories, synchronizing user data across multiple devices, and

go-astilectron is a cross-platform GUI framework and binding that enables the creation of desktop software by combining a compiled Go backend with an Electron frontend. It functions as an inter-process communication bridge, utilizing an asynchronous messaging system to exchange JSON events and synchronize state between the Go process and the JavaScript user interface. The project provides a native desktop API wrapper to orchestrate system-level features from the backend. This includes the ability to manage browser windows, construct native application menus, and control system tray icons and

This project is an autonomous, multi-model orchestrator designed to manage the full software development lifecycle through a command-line interface. It functions as an intelligent agent that decomposes high-level product goals into actionable, prioritized subtasks, manages dependency graphs, and executes development cycles. By automating requirement parsing, technical research, and task tracking, it maintains project alignment and momentum throughout the implementation process. The system distinguishes itself through a provider-agnostic abstraction layer that allows users to assign specific a

Electrobun is a desktop application framework and webview-based GUI toolkit used for building cross-platform desktop apps. It provides a TypeScript-based runtime and a native system webview to create interfaces that integrate embedded browser views with host-process logic. The project features a native GPU integration layer with direct FFI bindings, allowing for high-performance GPU surfaces and compute workloads to run within a desktop application. It also includes an inter-process communication bridge using a typed RPC system to exchange data and execute functions between the native backend

This project is a Microsoft Teams Linux client that functions as a native desktop wrapper for the web-based communication service. It uses an Electron-based shell to provide system integration and window management for the application on Linux platforms. The client distinguishes itself through a multi-account session manager that uses session partitioning and isolated data directories to allow concurrent access to multiple profiles and tenants. It further integrates with home automation via an MQTT bridge, publishing presence and call status to a message broker and receiving remote commands t

Node-qt is a native desktop application framework that provides C++ bindings for Qt, allowing developers to build desktop graphical user interfaces and manage application event loops from scripts. It functions as a native extension bridging underlying object models into JavaScript constructors for script-driven application runtimes, exposing system-level widget hierarchies and windowing primitives straight to high-level scripting environments without intermediary web layers. The library resolves runtime member calls against compiled classes by inspecting native object signatures on demand, w

This project is a cross-platform development framework that enables the execution of React Native applications as native desktop software. By utilizing the Qt toolkit, it maps mobile-oriented interface components to native desktop widgets, allowing developers to deploy a single codebase across Linux, macOS, and Windows. The framework functions as a bridge between JavaScript-based application logic and native system interfaces. It includes a native module bridge that exposes system-level hardware and platform capabilities to the JavaScript runtime, facilitating the integration of custom C++ or

react-native-windows is a framework and rendering system used to build native desktop applications for Windows using React. It functions as an extension that brings a mobile-first development model to the Windows desktop environment, mapping React components directly to native Windows interface elements. The project enables the creation of desktop software through a declarative component-based architecture. It integrates React Native projects into the Windows ecosystem by translating components into native user interface elements rather than using web views. The framework covers cross-platfo

Wayfire is a modular Wayland compositor for Linux that functions as a graphical session controller and window manager. It provides the core infrastructure for a desktop environment by managing window placement, input device handling, and display output configurations. The compositor utilizes hardware-accelerated rendering to manage the desktop state and coordinate the interaction between client applications and the display server. The project is distinguished by its plugin-based architecture, which allows for the dynamic extension of core functionality through modular components. It offers ex

Toga is a cross-platform application framework and native GUI toolkit for Python. It serves as a multi-platform frontend wrapper that allows a single codebase to be deployed across macOS, Windows, Linux, Android, and iOS. The toolkit functions as a native widget UI library, mapping high-level Python interface definitions directly to the host operating system's own visual components. This ensures that applications use native system widgets to match the look and feel of the target environment rather than relying on custom drawing libraries. The framework covers cross-platform development for d

Taiga UI is an Angular UI component library and accessible design system used for building enterprise web interfaces. It provides a comprehensive collection of reusable interface elements and layout tools, functioning as a mobile-first UI kit with responsive components that adapt to different device capabilities. The library distinguishes itself through an integrated data visualization library featuring various chart types and a dedicated form management framework with built-in validation and formatting for specialized data. It also features AI-driven development workflows by integrating comp

Floem is a native desktop UI framework and cross-platform toolkit for building high-performance user interfaces. It functions as a reactive UI library that uses a signal-based state management system to automatically synchronize the interface with data changes via lightweight observable primitives. The framework utilizes a GPU-accelerated rendering engine to ensure visual consistency and high performance across different desktop operating systems. It features a layout engine based on flexible box and grid models to create responsive screens that adapt to various window sizes. The toolkit cov

Windows Forms is a .NET framework for building graphical user interfaces for Windows operating systems using managed code and native controls. It functions as an event-driven UI library that provides a set of visual controls and event handlers for creating interactive desktop applications. The framework includes a visual UI designer that allows for the arrangement of interface elements on a canvas via a drag-and-drop layout system. It also serves as a Windows API wrapper, providing a compatibility layer to access system-level libraries such as User32 and GDI+. Additional capabilities include

This is a PHP native application framework used to build standalone desktop and mobile applications. It functions as a cross-platform app wrapper and binary application bundler, encapsulating PHP codebases into native binaries and installers for macOS, Windows, Linux, iOS, and Android. The project provides a native device API bridge and OS integration layer, allowing PHP application logic to connect directly to host operating system services. This enables the execution of applications as local binaries without the requirement of a remote web server. The framework covers several high-level ca

Toga is a cross-platform UI framework and Python native GUI toolkit used to build applications that render native user interfaces across different operating systems. It functions as a native widget wrapper, mapping Python code to native operating system components to ensure a consistent look and feel. This development kit allows a single codebase to be deployed across desktop computers, handheld mobile devices, and web browsers. It utilizes a multi-backend rendering engine to direct UI declarations to the appropriate renderer based on the target environment. The framework covers native deskt

lottie-react-native is a library for rendering Lottie JSON animations as native graphics within a cross-platform mobile framework. It serves as a JSON-based animation renderer that parses design-exported files into high-performance vector animations on mobile devices. The framework uses a GPU-accelerated vector animation implementation to offload rendering to the device processor, reducing CPU load to maintain smooth motion. It provides a cross-platform motion framework for controlling animation playback, layout scaling, and dynamic color modifications across different mobile screens. The li

Kivy is a cross-platform Python GUI framework used to build graphical user interfaces that run on desktop and mobile operating systems from a single codebase. It functions as a multi-touch UI library and a custom widget toolkit, providing a development environment for packaging Python applications into binary installations for Android and iOS. The framework is distinguished by its ability to handle complex multi-touch gestures and interactive input across various devices. It utilizes a specialized domain language for declarative UI construction to separate visual layout definitions from Pytho

wslg is an integration layer and display server system designed to run Linux graphical applications on Windows. It provides a bridge between Linux window management, audio routing, and system clipboards and the Windows host, utilizing a Wayland and X11 display server to support visual software. The system utilizes a virtual GPU architecture to provide hardware-accelerated rendering for graphics-intensive applications. It implements a Remote Desktop Protocol gateway to stream graphical frames and uses a specialized sound server interface to route audio and microphone data between the Linux gue

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

Xilem is a native user interface framework for the Rust programming language. It provides a reactive view tree that links application state to the interface to automate updates when data changes. The framework incorporates a GPU-accelerated 2D graphics engine and a dedicated text layout engine to handle complex typography and high-performance visual rendering. It is built as an accessible UI framework with integrated support for system accessibility services and screen readers. The system utilizes a retained-mode architecture with a graphics pipeline that translates drawing commands into har

ReactXP is a framework for building cross-platform mobile and web applications from a single codebase using React. It provides a declarative interface that maps to different native implementation sets depending on the target environment. The project enables consistent visual experiences across operating systems through a flexbox-based layout engine, a virtual stack for navigation management, and a unified native-bridge API for accessing system services. It distinguishes itself with specialized capabilities for declarative animation orchestration, platform-specific logic resolution, and an aut

Skia is a high-performance 2D graphics rendering library used for drawing text, geometries, and images on digital surfaces. It functions as a hardware-accelerated graphics engine that offloads drawing operations to the GPU, a vector graphics processor for SVG and complex paths, and a typography engine for shaping and drawing characters with Unicode support. The project provides a cross-platform image codec for encoding and decoding standard image formats into raw pixel data across multiple operating systems. It also enables the development of user interfaces that maintain visual consistency a

JNA is a foreign function interface and native memory mapper that allows Java applications to call functions in shared native libraries without writing custom JNI wrapper code. It serves as a JNI alternative framework for invoking C functions and mapping native data structures using high-level interfaces. The library distinguishes itself through its ability to translate Java objects and primitives into C-style structs, unions, and pointers for cross-platform memory exchange. On Windows, it provides a dedicated toolkit for interacting with Component Object Model objects using both early and la

pywin32 is a collection of Python extensions that serve as a wrapper for the native Windows API, enabling the invocation of operating system functions to manage low-level system resources and hardware. It provides a core library for interacting with Component Object Model objects to automate native desktop applications, a framework for constructing native Windows GUI applications, and an interface for registering and running Python scripts as background system services. The project distinguishes itself by providing deep integration with the Windows environment, including the ability to bind P

ToaruOS is an independent operating system built from the ground up without external dependencies. It features a custom x86-64 kernel that supports symmetric multiprocessing and paging, paired with a graphical windowing system and a dedicated bytecode interpreter for application logic. The system distinguishes itself by integrating an embedded Python environment for system-level development and a custom graphical interface that handles its own window composition and text rendering. It includes a compatibility layer for third-party application support and a system package manager for handling

UnleashedRecomp is a legacy software modernization project that uses static binary recompilation to enable native execution on Windows and Linux. Its primary purpose is to remove the need for emulation while updating old applications to support modern hardware and high-resolution displays. The project implements a game modding infrastructure that allows for the loading of external assets and custom software tweaks using standardized modification formats. It also includes an achievement tracking system that mirrors original platform notifications and a dedicated menu for monitoring progress.

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