Open Source C# System Software
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C# System Software
View 1971 business solutionsBrowse free open source C# System Software and projects below. Use the toggles on the left to filter open source C# System Software by OS, license, language, programming language, and project status.
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Fully Managed MySQL, PostgreSQL, and SQL ServerCloud SQL handles your database ops end to end, so you can focus on your app.
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AI-generated apps that pass security reviewRetool lets you generate dashboards, admin panels, and workflows directly on your data. Type something like “Build me a revenue dashboard on my Stripe data” and get a working app with security, permissions, and compliance built in from day one. Whether on our cloud or self-hosted, create the internal software your team needs without compromising enterprise standards or control.
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TGM Gaming Macro
Lets you have a macro mouse n keyboard functionally with ordinary one.
Official TGMacro Websites: 🌐 https://trksyln.net/projects/TGM-Gaming-Macro-(TGMacro)-4 🌐 https://gettgmacro.com Looking for old version? 🌐 https://trksyln.net/projects/TGM-Gaming-Macro-(TGMacro)-4/#download ⚡ TGMacro turns any ordinary mouse and keyboard into powerful macro devices. Easily create or record multiple macros, assign each to different keys or key combinations, and trigger or loop them whenever you need—whether it’s rapid-fire actions in games, complex multi-step workflows, or simple shortcuts that save you time every day. 🎮 Designed for gamers, but versatile enough for everyday tasks—TGMacro gives you full control and flexibility. 💡 Questions, bug reports, or feature requests? Older versions: https://trksyln.net/contact Current version: https://gettgmacro.com/contact Discord channel: https://discord.gg/gJ5ZNt4AAW https://gettgmacro.com/GetStarted -
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PowerShell
Command-line shell and scripting language built on .NET
Powershell is a cross-platform, task-based command-line shell and scripting language that helps rapidly automate tasks that manage operating systems (Linux, macOS and Windows) and processes. It works well with existing tools and is optimized for dealing with structured data, REST APIs and object models. PowerShell was developed by Microsoft as a task management and configuration management framework. Powershell is designed to let you manage computers from the command line and improve the command-line and scripting environment. -
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NoteBook FanControl (NBFC)
Cross-platform fan control service for notebooks
NoteBook FanControl (NBFC) is a cross-platform fan control service for notebooks. It comes with a powerful configuration system, which allows to adjust it to many different notebook models. Currently, there are no pre-built releases for Linux, but you can easily build NBFC yourself. In general the NBFC Wiki is the first place to go if you have any questions. If you want to build NBFC from source, the first thing you have to do is to download the source code. You can easily clone the NBFC repository via git. Make sure the Mono runtime + development tools are installed on your machine (Debian based distros: mono-complete, Arch based distros: mono). Config files are an integral part of NBFC, because they define how NBFC interacts with your notebook's embedded controller (EC). The EC monitors your system's temperatures and controls the fan(s). It sits on the motherboard or is integrated into a Super I/O chip & is connected to the Southbridge via the Low Pin Count (LPC) bus. -
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Winslop
De-slop Windows
Winslop is a utility that provides effortless window management on desktop environments, especially for macOS and other systems where native tiling is limited by default. It gives users keyboard-driven control over window layouts, snapping, resizing, and workspace organization without requiring heavy configuration or window manager expertise. By assigning intuitive keyboard shortcuts, users can instantly tile windows to halves, thirds, quadrants, or custom presets, streamlining multi-task workflows where quickly reshaping the screen space is essential. The interface aims for simplicity: it stays out of the way when not needed, only intercepting input when window actions are explicitly triggered, so it doesn’t disrupt regular typing or focus. Winslop also supports multi-monitor configurations, enabling users to manage windows across screens with consistent behavior and predictable layouts. -
MongoDB Atlas runs apps anywhereMongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
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WinLaunch
macOS Launchpad for Windows
WinLaunch provides a beautiful way to organize and access all of your important applications and documents. The overall style has been heavily influenced by Apples macOS Launchpad. WinLaunch is being actively developed and improved, my goal is to provide the best app launching experience available on Windows. You can now support the development of WinLaunch on Patreon for access to custom themes and priority feature requests https://www.patreon.com/WinLaunch -
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Files
A modern file manager for Windows
A modern file explorer that pushes the boundaries of the platform. Explore a beautiful Windows-first design. Manage all your files with increased productivity. Work across multiple folders with tabs. And so much more. Cloud files integration? Tabs and multiple layouts? Rich file previews? Files has it covered with robust features you expect from a modern file manager. Have it your way. Files features a fully customizable user interface, right down to the colors and materials. Try custom themes that are built into Files or dive right into the docs and create your own. Files is free and open source software, maintained and designed by a collective of hundreds of contributors. Integration with cloud services such as OneDrive, Google Drive, and iCloud allow you to manage your documents and photos in the cloud, right from the sidebar. -
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MouseController
Records and plays back mouse actions
MouseController lets you record and save mouse movement and clicks with a push of a key. Shortcut keys for record and playback are configurable (function keys only). Playback can be delayed and repeated infinitely at a configurable interval. A time stretch function lets you slow down or speed up the playback. Execution via command line provides the option to set most parameters visible in the UI. This application requires the .NET Framework 4.8 runtime. The installer will attempt to install the framework if necessary. -
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Steam Deck Tools
Fan, Overlay, Power Control and Steam Controller for Windows
Steam Deck Tools is a community-driven collection of utilities designed to enhance the experience of running Windows on the Valve Steam Deck. Hosted on GitHub and written primarily in C#, this suite bundles multiple practical tools into a single package, including fan control, performance overlay, power (TDP and refresh rate) adjustment, and Steam Controller support. The tools aim to fill functionality gaps when running Windows on a device originally optimized for SteamOS, such as adjusting thermal behavior or viewing real-time stats like FPS. Users have noted the project provides a lightweight alternative to other companion utilities and can be especially helpful when default drivers or settings don’t cover desired features. Because this software interacts with low-level system controls, its use carries some risk of instability, and it’s provided on a best-effort basis with documentation on installation and troubleshooting. -
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Harmony
Patching, replacing and decorating .NET and Mono methods
Harmony gives you an elegant and high-level way to alter the functionality in applications written in C#. It works great in games and is well established in titles like 7 Days To Die, BattleTech, Besiege, Cities:Skylines, Kerbal Space Program, Oxygen Not Included, Ravenfield, Rimworld, Sheltered, Stardew Valley, Staxel, Subnautica, The Ultimate Nerd Game, Total Miner, Unturned, SCP: Secret Laboratory and many more. If you develop in C# and your code is loaded as a module/plugin into a host application, you can use Harmony to alter the functionality of all the available assemblies of that application. Where other patch libraries simply allow you to replace the original method, Harmony goes one step further. It is also used in unit testing WPF controls and in many other areas. Installation is done by using 0Harmony.dll in your project or by using the Lib.Harmony nuget package. -
Train ML Models With SQL You Already KnowBuild and deploy ML models using familiar SQL. Automate data prep with built-in Gemini. Query 1 TB and store 10 GB free monthly.
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N_m3u8DL-CLI
Simple CLI tool to download m3u8 streams to MP4/TS with rich options
N_m3u8DL-CLI is a cross-platform command-line downloader for m3u8 (HLS) playlists. It converts streams to MP4 or TS and offers rich command-line options. While the original CLI uses .NET Framework (Windows), its successor N_m3u8DL-RE adds true cross-platform support for Windows, Linux, and macOS. Common in media workflows for downloading and converting streaming video. -
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Windows Service Wrapper permissive
A wrapper executable that can run any executable as a Windows service
WinSW wraps and manages any application as a Windows service. Functionality-wise, there's really not much that's worth noting; the problem of wrapping a process as a Windows service is so well defined that there aren't really any room for substantial innovation. You basically write a configuration file specifying how you'd like your process to be launched, and we provide programmatic means to install/uninstall/start/stop services. Another notable difference is that winsw can host any executable, whereas Java Service Wrapper can only host Java apps. Whether you like this or not depends on your taste, so I wouldn't claim mine is better. It's just different. WinSW 3 can run on Windows platforms with .NET Framework 4.6.1 or later versions installed. For systems without .NET Framework, the project provides native 64-bit and 32-bit executables based on .NET Core. -
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oto the autoclicker
The fastest auto clicker for windows
This auto clicker is the fastest auto clicker. It is a full-fledged auto clicker with one mode of auto clicking, at your dynamic cursor location. The maximum amounts of clicked can also be set (or left as infinite). Hotkeys work in the background for convenience. If someone finds an autoclicker they think is faster please let me know in the discussion window. Has currently only been tested on Windows 11, so if you experience any problems on other OS' please let me know. Might work on linux. It was made with C# .NET8 and WPF -
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CrapFixer
Fixes the crap Windows leaves behind
CrapFixer is a lightweight Windows cleanup and tweaking toolbox aimed at removing or reducing the everyday “junk” Windows accumulates, while keeping changes understandable and reversible. It’s positioned as a fast, no-fluff utility that focuses on practical fixes rather than turning into an overstuffed “optimizer” suite. The workflow is deliberately simple: you analyze your system, review what’s flagged, and then apply recommended changes with a single action. It distinguishes between items that are recommended to fix and items that are already optimized, helping you avoid unnecessary changes. The project emphasizes safety by making most tweaks undoable, and it supports running with administrator privileges when deeper changes (like certain registry locations) are required. For users who want more clarity, it includes a help lookup per tweak and offers log review so you can understand what happened and share results for troubleshooting. -
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Windows 11 Fixer
A tool to "Fix" Windows 11
Windows 11 Fixer is a community-oriented Windows utility intended to centralize a wide range of customization, cleanup, and configuration tasks for Windows 11 into one user-friendly interface. It gives users a single place to tweak visual components like the taskbar and File Explorer, adjust system settings including privacy and security options, and uninstall unwanted default software that many consider bloatware. In addition to settings adjustments, the tool can automate the removal of applications such as Cortana or Edge, and also offers options to install commonly used third-party applications directly from within its UI. The application emphasizes ease of use, pulling together many tweaks that would otherwise require manual registry edits or piecemeal scripts, and it typically shows reminders when a reboot or process restart is needed for changes to take effect. -
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taskt
Free and open-source robotic process automation (rpa)
taskt (formerly sharpRPA) is the first truly free, easy-to-use, and open-source process automation client built on the .NET Framework in C#. taskt allows you to build and design process automation without needing to write application code. taskt allows you to automate the boring stuff and create efficienies by giving you the power to craft a digital workforce that executes and performs rule-based automation. No API? No Problem! Included is a "what you see is what you get" bot designer with dozens of automation commands. An element recorder and screen recorder is also included that can record and replay scripted automation. taskt works by allowing a bot developer to design a bot configuration known as a script. The bot configuration is then intepreted by a script engine at run-time and executes against the bot developer's selected parameter inputs. Each command contains the definitions for the required inputs as well as the required logic at run-time. -
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Symlink Creator
Program to create symlinks. Provides the CMD command as well.
Just a small application I made to simplify the process of creating symbolic and hard links in Windows 7 and Windows 8 (likely Vista too). It is a GUI for the MKLINK command in Windows, which makes creating the links much easier. The program requires administrator permissions due to use of the command prompt, so you should run it as an administrator if you experience any problems. Note: It is not possible to create a hard link from a network share. You must use a symbolic link instead. Warning: If you incorrectly specify the destination path, such as having the destination and source paths backwards, it will delete the file/folder you are presumably trying to create a symlink from. You will be presented with a confirmation prompt that shows you which folder will be replaced/deleted. It is always a good idea to test this app on empty files or folders. -
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Flow Launcher
Quick file search & app launcher for Windows
A quick file search and app launcher for Windows with community-made plugins. Dedicated to making your workflow more seamless. Search everything from applications, files, bookmarks, YouTube, Twitter, and more. Flow will continue to evolve, designed to be open and built with the community at heart. -
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P2P Remote Desktop
P2P Remote Desktop - Portable, No Configuration or Installation Needed
p2p is a simple and educational peer-to-peer communication framework that demonstrates how devices can discover, connect, and exchange data directly without a central server. Built in C#, this project provides an easy-to-understand foundation for P2P networking, including peer discovery, messaging, and connection management. It’s particularly useful for learners and developers exploring decentralized communication or building the groundwork for P2P applications like chat systems or multiplayer games. -
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CMWTAT Digital Edition
C# toolkit to digitally activate Windows 10/11 via license
CMWTAT Digital Edition is an open-source C# application that activates Windows 10 and Windows 11 using digital license (digitally entitled activation) without requiring product keys. It's portable, easy to use, typically launched via script to bypass Defender, and maintained under GPL‑2.0. -
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CapFrameX
Frametime capture and analysis tool
CapFrameX is a performance capture and analysis tool designed for PC gamers and benchmarking enthusiasts, which records frametimes, frame-rates and various sensor data during game or application execution. It uses backend tools like PresentMon to log data and then exposes a comprehensive UI for analyzing the results: you can view charts of frametimes, historic graphing, stuttering analysis, L-shape graphs, input-lag overlays, and compare multiple capture runs side by side. Importantly, the tool also integrates with sensor inputs (CPU, GPU, VRAM, temps, etc.) and overlays statistics in-game via Rivatuner Statistics Server, so you get in-situ feedback while you run. For benchmarking, it supports aggregation, filtering, outlier detection, and export of records to CSV/Excel for further analysis or reporting. The project is suited for reviewers, hardware testers, and power users who want to dig deeper than simple FPS numbers and want to diagnose performance issues. -
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Glow OS
System Analysis Software
Glow is an educational, hobbyist operating system written in C and Assembly, developed to help learners understand the internals of OS design and kernel development. Targeting x86_64 systems, Glow features its own kernel, bootloader, and minimal userland. With clear code structure and a simple design, it serves as a playground for experimenting with low-level systems programming, boot sequences, interrupt handling, and basic UI components like shells and text rendering. -
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QMK Toolbox
A Toolbox companion for QMK Firmware
This is a collection of flashing tools packaged into one app. It supports auto-detection and auto-flashing of firmware to keyboards. Make sure your newly-flashed keyboard is working as expected. No-fuss installation of drivers for all supported bootloaders on Windows. Debug your code using QMK's Console feature. -
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MQTTnet
High performance .NET library for MQTT based communication
MQTTnet is a high-performance .NET library for MQTT-based communication. It provides an MQTT client and an MQTT server (broker) and supports the MQTT protocol up to version 5. TLS support for client and server (but not UWP servers). Extensible communication channels (e.g. In-Memory, TCP, TCP+TLS, WS). Lightweight (only the low-level implementation of MQTT, no overhead). Performance optimized (processing ~150.000 messages/second). Uniform API across all supported versions of the MQTT protocol. Tested on the local machine (Intel i7 8700K) with MQTTnet client and server running in the same process using the TCP channel. The app for verification is part of this repository and stored in /Tests/MQTTnet.TestApp.NetCore. List of connected clients available. Supports connected clients with different protocol versions at the same time. Able to publish its own messages (no loopback client required). Able to receive every message (no loopback client required). -
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myFP2ESP32-Dev WiFi ASCOM Focuser
ASCOM-INDI ESP32-Dev Wifi focuser
An ESP32-Dev WiFi focuser. DIY or PCB designs. (c) Robert Brown 2014-2025, Holger M, 2019-2021. All rights reserved. Code or portions of code may not be copied or used without appropriate credit given to authors. Spreadsheet to calculate what stepper motor to use. https://sourceforge.net/projects/arduinoascomfocuserpro2diy/files/Documentation/Nema-Stepper-Motors.xlsx/download Spreadsheets to calculate CFZ https://sourceforge.net/projects/myfocuserpro2-esp32/files/CFZ%20Spreadsheets/CFZ%20Spreadsheets.zip/download Focuser Basics Guide (PDF) - shows how to derive the correct motor requirements for your system (mandatory reading) https://sourceforge.net/projects/myfocuserpro2-esp32/files/Documentation/Focuser%20Basics.pdf/download https://youtu.be/90KeSspN3e0 -
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Process Manager for Windows (PMW)
A easy to use task manager that lets you control your apps
Process Manager for Windows is a smart Task Manager that lets you manage priority, transparency, visibility of your processes with few clicks. It lets you kill one process or all processes in with just shortcut key and let you gain control of your unresponding windows computer and let you regain all the resources back, of course when killing apps you always have the risk of losing the unsaved data. ================= This tool flourished from 2008 to 2013, and was downloaded over 200K times, However, it was decommissioned in 2013 by the sole developer Arif Ali Saiyed This tool was free with optional donations to milaap.org that raised about $1400 and just that small amount helped 15,372 needy people through microlending and created a new source of income stream for 3401 entrepreneurs. Check out the link below to see the impact you all made by donating. https://milaap.org/users/6877/impact
