C#

A GUI proxy client for Windows, Linux, and macOS with support for Xray, sing-box, and other cores.

PowerShell is Microsoft's official cross-platform automation framework — one syntax for Windows / Linux / macOS with first-class structured data, REST APIs and object models. 56 K stars.

A free and open-source screen capture, screen recording, file sharing, and productivity tool for Windows, supporting multiple capture methods, upload destinations, image editing, and automated workflows.

OfficeCLI is a command-line Office suite for AI agents and automation scripts that reads, edits and creates .docx, .xlsx and .pptx files without Office installed, rendering results to HTML or PNG.

A tool that allows you to record a selected area of your screen, live feed from your webcam, or live drawings from a sketchboard, edit the animation, and save it as a GIF, APNG, video, or PNG image.

An open-source cross-platform multi-functional game toolbox (Watt Toolkit) offering network acceleration, multi-platform account switching, Steam inventory management, local tokens, cloud save management, achievement unlocking, and game tools.

A Windows-first graphical interface for package managers, unifying 15+ CLI package managers including WinGet, Scoop, Chocolatey, Homebrew, and APT for software discovery, installation, updates, and uninstallation.

Filee is a free open-source file converter built with C# and Avalonia (MIT): hold Ctrl/Option and drag files to pop up a donut toolbar of formats right at your cursor, converting 180+ formats fully offline without Office, with Windows 10/11 as the flagship and macOS/Linux in preview

A free and open-source program uninstaller for Windows that excels at removing large amounts of applications with minimal user input, with support for cleaning up leftovers, detecting orphaned applications, and running uninstallers according to premade lists, compatible with Windows Store Apps, Steam, and Windows Features.

Scripts to build a trimmed-down Windows 11 image using PowerShell.

ContextMenuManager is a pure Windows context-menu manager that can enable, disable, modify, and customize right-click menu entries.

Lively Wallpaper is a Windows animated wallpaper and screensaver app built with WinUI 3 that can set videos, web pages, apps, and even games as your desktop background — free, open source, and ad-free.

A very simple Windows tool that allows you to convert and compress one or several files using the context menu of Windows Explorer, built on tools like FFmpeg and ImageMagick.

Playnite is a Windows game library manager that gathers Steam, Epic, GOG and other platform games into one interface, with emulation support and plugin extensions.

optimizerDuck is a free, open-source Windows optimization tool built in C#, gathering 42 performance and privacy tweaks, 44 customization settings and built-in tools for startup, scheduled tasks, disk cleanup and bloatware removal into one portable program, each tweak documented with a risk rating.

DLSS Swapper is a Windows desktop tool that downloads, manages, and swaps DLSS, FSR, and XeSS DLLs in games so you can upgrade or roll back versions without a game update.

Downloading videos with command-line yt-dlp feels clunky? Parabolic wraps it in a GNOME graphical interface, supporting video and audio downloads from hundreds of sites, built by NickvisionApps.

A lightweight, customizable open-source Windows desktop hardware monitoring tool for real-time monitoring of CPU, GPU, memory, disk, network, FPS, and other system performance, with plugin extension and memory cleaning.

Tubatools CE is a WinUI 3 hardware diagnostics and maintenance toolkit for Windows, bundling many classic tools alongside an AI assistant, benchmarks, format conversion, and system optimization.

CefFlashBrowser is a Windows browser with a bundled Flash Player plugin that displays web Flash content, opens local SWF files, and manages game saves.

A media player for Windows based on the popular mpv player, featuring a modern GUI, customizable color themes, a searchable config editor, and near-complete mpv compatibility.

SyncClipboard is a cross-platform clipboard syncing and history management tool supporting text, image, and file sync. It offers standalone server, client built-in server, WebDAV, and S3 sync methods, with clients for Windows, macOS, Linux, and Android.

Remotely is a self-hosted remote control and remote scripting platform built on .NET 8 and Blazor, offering remote desktop, command execution, file transfer and device inventory.

WinDynamicDesktop ports the macOS Mojave Dynamic Desktop feature to Windows, cycling wallpapers through the day with themes, schedules, and PowerShell script extensions.