KnifeLemon / Filee

Free, open-source file converter. Convert 255 formats offline by drag & drop — images, PDF, Word, Excel, PowerPoint, HWP/HWPX, video, audio, e-books and archives. No upload, no Office needed.

Tianyu199509 / DeskBox

A free, open-source Windows desktop organizer with native-feeling WinUI 3 widgets.

BillyNabil / nabyscape

A customizable island for Windows 11. Music, system stats, and everyday tools. Local data, open source.

Sonarr / Sonarr

Smart PVR for newsgroup and bittorrent users.

iOfficeAI / OfficeCLI

OfficeCLI is the first and best Office suite purpose-built for AI agents to read, edit, and automate Word, Excel, and PowerPoint files. Free, open-source, single binary, no Office installation required.

ShareX / ShareX

ShareX is a free and open-source application that enables users to capture or record any area of their screen with a single keystroke. It also supports uploading images, text, and various file types to a wide range of destinations.

ahwootech / BRUTAL

A free, open source C# framework for making games, or your own game engine. Direct access to native APIs and Vulkan, with the low-level libraries around them. The foundation under Kitten Space Agency and RimWorld's Waylith engine.

Zaneris / passenger

An open-source IDE for C# and .NET, built with Avalonia, for Windows, macOS and Linux: a Roslyn-powered editor, its own debugger with Hot Reload, a CPU and memory profiler, XAML tooling for Avalonia and WPF, and an MCP server for coding agents.

seerge / g-helper

Lightweight Armoury Crate alternative for Asus laptops with nearly the same functionality. Works with ROG Zephyrus, Flow, TUF, Strix, Scar, ProArt, Vivobook, Zenbook, Expertbook, ROG Ally, and more.

itsfatduck / optimizerDuck

Free, open-source Windows optimization tool for performance, privacy, and simplicity.

SubtitleEdit / subtitleedit

the subtitle editor :)

juinwei7 / Shiyin

Free, open-source meeting notes app for Mac: records Zoom, Meet and Teams without a bot, transcribes on-device (whisper.cpp + Breeze ASR 25), identifies speakers, and writes timestamped notes with your own Claude or ChatGPT. 拾音

JosefNemec / Playnite

Video game library manager with support for wide range of 3rd party libraries and game emulation support, providing one unified interface for your games.

Lertaro / Lertaro

A modern, high-performance local file search and productivity tool for Windows. A sleek, customizable alternative to Everything and Listary built with C# WPF and NT Services, featuring instant NTFS MFT parsing, real-time USN monitoring, and plugin support.

eyalgolan / statecraft-israel

A Civilization-style strategy game about governing Israel from 15 May 1948. Real ministers, real map, every fact sourced. Unity + deterministic C# sim.

ralphtradesz / trading-hub

Plataforma de trading gratis y de código abierto para Mac (con guía para portarla a Windows con Claude): footprint, DOM, backtesting anti-sobreoptimización y estrategias con IA. 100 % local.

sourcegit-scm / sourcegit

Windows/macOS/Linux GUI client for GIT users

finna / herdr-hud

Manage your Herdr agents while gaming. Floating desktop HUD for macOS and Windows; Omarchy plugin linked inside.

VlcekM / MeitouClient

Open-source reimplementation of the Kenshi engine in C# / .NET 10 (Vulkan renderer first). Needs your own copy of Kenshi.

OpenRA / OpenRA

Open Source real-time strategy game engine for early Westwood games such as Command & Conquer: Red Alert written in C# using SDL and OpenGL. Runs on Windows, Linux, *BSD and Mac OS X.

Tyrrrz / DiscordChatExporter

Saves Discord chat logs to a file

motalim-ai / adawat

Convert, compress and edit any file while you drag it. A free macOS menu bar app in Arabic and English. | حوّل واضغط وعدّل أي ملف وأنت تسحبه.

SteveTheKiller / KillerPDF

Free and open-source PDF editor for Windows with a built-in PDF 2.0 engine. View, annotate, OCR, merge, split, crop, rotate, compare, edit text, draw, sign, fill forms, print, flatten, and open password-protected PDFs without a subscription.

lively-community / lively

Free and open-source software that allows users to set animated desktop wallpapers and screensavers powered by WinUI 3.

AIDotNet / TKCode.Arc

Arc-style (uiarc.dev) component library for Avalonia, built on AtomUI

StockSharp / StockSharp

Algorithmic trading and quantitative trading open source platform to develop trading robots (stock markets, forex, crypto, bitcoins, and options).

openutau / OpenUtau

Open singing synthesis platform / Open source UTAU successor

Flow-Launcher / Flow.Launcher

:mag: Quick file search & app launcher for Windows with community-made plugins

Macro-Deck-App / Macro-Deck

The open-source macro pad with customizable widgets, powerful integrations and a secure plugin ecosystem.

everlosttime / glassdesk-open-source

GlassDesk 1.4.0 Windows 11 Dock and launcher source, without information bar. Noncommercial original changes; historical Apache and third-party rights retained.

TGSAN / CMWTAT_Digital_Edition

CloudMoe Windows 10/11 Activation Toolkit get digital license, the best open source Win 10/11 activator in GitHub. GitHub 上最棒的开源 Win10/Win11 数字权利（数字许可证）激活工具！

srwi / EverythingToolbar

Everything integration for the Windows taskbar.

jasontaylordev / CleanArchitecture

Clean Architecture Solution Template for ASP.NET Core

WDHUS4G / Filee

Free, open-source file converter (mirror of KnifeLemon/Filee, MIT). Convert 180+ formats offline

dotnet / eShop

A reference .NET application implementing an eCommerce site

CircuitLord / CircuitLordVRModInstaller

One-click installer for Big Walk VR and Titanfall 2 VR

d2phap / ImageGlass

🏞 A fast, open-source, modern image viewer for 90+ formats – including WEBP, GIF, SVG, AVIF, JXL, HEIC and more – built for smooth browsing across Windows, macOS, and Linux.

stride3d / stride

Stride (formerly Xenko), a free and open-source cross-platform C# game engine.

btcpayserver / btcpayserver

Accept Bitcoin payments. Free, open-source & self-hosted, Bitcoin payment processor.

evolutionary-architecture / evolutionary-architecture-by-example

Navigate the complex landscape of .NET software architecture with our step-by-step, story-like guide. Unpack the interplay between modular monoliths, microservices, domain-driven design, and various architectural patterns. Go beyond the one-size-fits-all solutions and understand how to blend these approaches based on your unique needs.

BYTEX-TRADE / bytex

Event-driven algorithmic trading engine for .NET. Write a strategy once and run it unchanged in backtest, paper and live trading, deterministic, with fixed-point money and adapters for Binance, Bybit, OKX, Kraken, Bitget, Gate, KuCoin and Hyperliquid.

banadmiralpurge / lora-merge

Published: 2026-10-18

BasilForge / Kairos

Instant replay for Windows games. Press a key or say your phrase to save the last minutes. Free, open source, offline.

EnamelTempoSlip / llm-arena

Published: 2026-10-18

yarnoriolegaze / semantic-files

Published: 2026-10-19

gryphonrollershift / table-pull

Published: 2026-10-19

LibreHardwareMonitor / LibreHardwareMonitor

Libre Hardware Monitor is free software that can monitor the temperature sensors, fan speeds, voltages, load and clock speeds of your computer.

ValveResourceFormat / ValveResourceFormat

Source 2 Viewer is an all-in-one tool to browse VPK archives, view, extract, and decompile Source 2 assets, including maps, models, materials, textures, sounds, and more.

MonoGame / MonoGame

One framework for creating powerful cross-platform games.

JustArchiNET / ArchiSteamFarm

C# application with primary purpose of farming Steam cards from multiple accounts simultaneously.

youke1686 / FlyDisk

Windows 上的开源硬盘加速器 · Open-source hard drive accelerator for Windows

aethai / ro3emu-server

Open-source Ragnarok Online 3 (RO3) PC server emulator in C# / .NET 10. Client-documented protocol, multiplayer systems, tools and research.

BornToBeRoot / NETworkManager

A powerful open-source tool for managing networks and troubleshooting network problems!

Unity-Technologies / ml-agents

The Unity Machine Learning Agents Toolkit (ML-Agents) is an open-source project that enables games and simulations to serve as environments for training intelligent agents using deep reinforcement learning and imitation learning.

Unity-Technologies / UnityCsReference

Unity C# reference source code.

4sval / FModel

Unreal Engine Archives Explorer

maximilian467 / Developer-Island

A Dynamic Island for Windows: Claude Code & Codex usage, now playing, focus timer, calendar and system health in one native capsule. Local-first.

abpframework / abp

Open-source web application framework for ASP.NET Core! Offers an opinionated architecture to build enterprise software solutions with best practices on top of the .NET. Provides the fundamental infrastructure, cross-cutting-concern implementations, startup templates, application modules, UI themes, tooling and documentation.

Sophia-Community / SophiApp

:zap: The most powerful open source tweaker on GitHub for fine-tuning Windows 10 & Windows 11

ProwlEngine / Prowl

An Open Source C# 3D Game Engine under MIT license, inspired by Unity and featuring a complete editor