Open Source C# Software - Page 4
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C# Software
Browse free open source C# Software and projects below. Use the toggles on the left to filter open source C# Software by OS, license, language, programming language, and project status.
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Turn traffic into pipeline and prospects into customersDocket is an AI-powered sales enablement platform designed to unify go-to-market (GTM) data through its proprietary Sales Knowledge Lake™ and activate it with intelligent AI agents. The platform helps marketing teams increase pipeline generation by 15% by engaging website visitors in human-like conversations and qualifying leads. For sales teams, Docket improves seller efficiency by 33% by providing instant product knowledge, retrieving collateral, and creating personalized documents. Built for GTM teams, Docket integrates with over 100 tools across the revenue tech stack and offers enterprise-grade security with SOC 2 Type II, GDPR, and ISO 27001 compliance. Customers report improved win rates, shorter sales cycles, and dramatically reduced response times. Docket’s scalable, accurate, and fast AI agents deliver reliable answers with confidence scores, empowering teams to close deals faster.
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SoftCo: Enterprise Invoice and P2P Automation SoftwareSoftCo Accounts Payable Automation processes all PO and non-PO supplier invoices electronically from capture and matching through to invoice approval and query management. SoftCoAP delivers unparalleled touchless automation by embedding AI across matching, coding, routing, and exception handling to minimize the number of supplier invoices requiring manual intervention. The result is 89% processing savings, supported by a context-aware AI Assistant that helps users understand exceptions, answer questions, and take the right action faster.
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ImageGlass
A lightweight, versatile image viewer
ImageGlass is a lightweight and versatile image viewer for Windows, offering a clean, modern interface and supporting over 80 image formats, including WEBP, GIF, SVG, PNG, JXL, HEIC, and RAW. It’s fast, customizable, and designed for streamlined image browsing. ImageGlass is a lightweight software designed for seamless viewing of images in a clean and intuitive interface. With support for over 88 common image formats, including WEBP, GIF, SVG, PNG, JXL, HEIC, ImageGlass also offers advanced features that cater to the needs of both regular users and designers, making it an excellent tool to enhance workflow efficiency. If you want to support the development of ImageGlass, you can purchase ImageGlass from Microsoft Store. -
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S&box
s&box is a modern game engine, built on Valve's Source 2
S&box is the open-source codebase for s&box, a next-generation sandbox game development platform from the creators of Garry’s Mod that blends modding freedom with modern tooling and performance. Built on a cutting-edge game engine, s&box allows creators to prototype, build, and share interactive game modes, tools, and environments using C#, JavaScript, and visual scripting, promoting accessible content creation for developers of varying skill levels. The platform emphasizes multiplayer and community experiences, giving creators direct control over networking, physics, rendering, and audio without needing to build those systems from scratch. With real-time recompilation and fast iteration loops, developers can see changes instantly, speeding up the creative process dramatically compared to traditional engines. The sbox ecosystem fosters collaboration, sharing, and extension through packages and community content, enabling a vibrant marketplace of user-created mods and assets. -
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Windows Calculator
A simple yet powerful calculator that ships with Windows
Calculator is the open source version of the Microsoft Windows Calculator application. It is a modern Windows app written in C++ and C#, offering standard, scientific, and programmer modes, unit/currency conversion, date calculations, and history/memory operations. It ships preinstalled with Windows and is actively developed on GitHub. Standard Calculator functionality, which offers basic operations and evaluates commands immediately as they are entered. Scientific Calculator functionality, which offers expanded operations and evaluates commands using the order of operations. Programmer Calculator functionality, which offers common mathematical operations for developers, including conversion between common bases. -
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Winhance
Application designed to optimize and enhance your Windows experience
Winhance is a Windows enhancement utility designed to debloat, optimize, and customize Windows 10 and 11 systems. Built as a C# application, it provides a user-friendly interface that allows users to manage apps, adjust system settings, and apply performance improvements without requiring a fresh OS installation. Winhance includes tools for removing unwanted Windows apps, installing third-party software via WinGet, and configuring privacy, update, and power settings. It also offers customization options for themes, taskbar layout, Start menu behavior, and File Explorer preferences. Advanced tools allow users to create custom Windows ISOs and generate autounattend.xml files based on their chosen configurations. Designed for individuals and IT professionals alike, Winhance delivers a comprehensive, all-in-one solution for enhancing and personalizing the Windows experience. -
Loan management software that makes it easy.Bryt Software is ideal for lending professionals who are looking for a feature rich loan management system that is intuitive and easy to use. We are 100% cloud-based, software as a service. We believe in providing our customers with fair and honest pricing. Our monthly fees are based on your number of users and we have a minimal implementation charge.
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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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Outlook CalDav Synchronizer
Sync Outlook with Google, SOGo or any other CalDAV / CardDAV server
Free Outlook Plugin, which synchronizes events, tasks and contacts between Outlook and Google, SOGo, NextCloud, Horde or any other CalDAV or CardDAV server. Supported Outlook versions are 2021, 2019, 2016, 2013, 2010 and 2007 and Office 365 for Desktop. This project was initially developed as a master thesis project at the University of Applied Sciences Technikum Wien, Software Engineering Degree program. Outlook CalDav Synchronizer is Free and Open-Source Software (FOSS), still you can support the project by donating on Sourceforge or directly within the About dialog of our Plugin. Contact us for enterprise support at https://caldavsynchronizer.org/enterprise/contact -
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Shadowsocks for Windows
A secure socks5 proxy for Windows
Shadowsocks for Windows is a free and open source, high-performance secured socks5 proxy designed to protect your internet traffic. It allows you to surf the web privately and securely, and offers a number of useful features such as HTTP proxy support, system proxy configuration, server auto switching and plugin support. Shadowsocks is incredibly fast, as it utilizes bleeding edge techniques with Asynchronous I/O and event-driven programming. It also has a flexible industry-level encryption algorithm that supports custom algorithms. Shadowsocks for Windows requires a Microsoft .NET Framework 4.7.2 or higher, as well as Microsoft Visual C++ 2015 Redistributable (x86). -
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GO Contact Sync Mod
Sync Outlook contacts and calendars with Google
Please install the latest version >4.0, because it uses the new Google People API. The Google Contacts API is now deprecated and is scheduled for sunset on June 15, 2021. GO Contact Sync Mod synchronizes your Microsoft Outlook contacts with your Google Mail address book, including pictures, categories and contact notes. It also syncs your Outlook Calendar Appointments on demand to Google Calendar. This Mod fork adds many enhancements and bug fixes to the obviously dead project 'Go Contact Sync'. Minimum requirement for GO Contact Sync Mod is .NET 4.7.2 and Windows 7 (32 or 64 bit). -
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Key Presser
Fully Configurable Automatic Keyboard Presser
Key Presser is a tool that can automatically press any key combination repeatedly or a set amount. It's ideal for gaming and it has a DARK MODE! The key pressing can start and stop with any hotkey of your choice. -
Failed Payment Recovery for Subscription BusinessesFlexPay’s innovative platform uses multiple technologies to achieve the highest number of retained customers, resulting in reduced involuntary churn, longer life span after recovery, and higher revenue. Leading brands like LegalZoom, Hooked on Phonics, and ClinicSense trust FlexPay to recover failed payments, reduce churn, and increase customer lifetime value.
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San Andreas Unity
Open source reimplementation of GTA San Andreas game engine in Unity
San Andreas Unity is an open-source reimplementation of GTA San Andreas game engine in Unity. This won't be a complete reimplementation, but the focus is on gameplay features, multiplayer, and creating a framework that will allow easy game extension and unlimited modding possibilities. When running for the first time, the game will ask you for a path to GTA installation. You need to own GTA in order to play it. The game is tested on Linux, Windows, Mac, and Android. It supports both Mono and IL2CPP scripting backends, so it can be built for any platform that Unity supports, provided that you can copy PC version of GTASA to target device. Game fully works in multiplayer. You can start the game as dedicated server, as a host (server & client at the same time), or you can connect to a server. This works on all supported platforms, which means you can start a host even on Android device. -
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ModernFlyouts
Modern UI replacement for Windows flyouts with customizable features
ModernFlyouts is an open source application designed to replace the default Metro-style flyouts in Windows with a more modern, Fluent Design–based user interface. Instead of the old built-in popups for system feedback like volume, brightness, and airplane mode, ModernFlyouts temporarily intercepts those events and displays customizable flyouts that blend more seamlessly with recent Windows UI aesthetics. It extends beyond audio flyouts to cover media controls, brightness changes, airplane mode toggles, and even lock key indicators such as Caps Lock and Num Lock, offering a unified experience for all these system notifications. Users can adjust not just the look but the behavior of these flyouts (including layout, position, opacity, and animation) letting it feel more natural to individual preferences. The project’s roots trace back to AudioFlyout by ADeltaX, with further enhancements added by the community to support more flyout types and improved interaction. -
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PKHeX
Pokémon Save File Editor
Pokémon core series save editor, programmed in C#. Data is displayed in a view that can be edited and saved. The interface can be translated with resource/external text files so that different languages can be supported. Pokémon Showdown sets and QR codes can be imported/exported to assist in sharing. PKHeX expects to save files that are not encrypted with console-specific keys. Use a save data manager to import and export save data from the console (Checkpoint, save_manager, JKSM, or SaveDataFiler). We do not support or condone cheating at the expense of others. Do not use significantly hacked Pokémon in battle or in trades with those who are unaware hacked Pokémon are in use. PKHeX is a Windows Forms application that requires .NET Framework v4.6, with experimental support for .NET 6.0. The executable can be built with any compiler that supports C# 10. -
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RyTuneX
RyTuneX is a cutting-edge optimizer built with the WinUI 3 framework
RyTuneX is a comprehensive Windows-system optimization tool aimed at users who want to enhance performance, privacy and usability on systems running Windows 10 (20H1 +) and Windows 11. It is built using the WinUI 3 framework and .NET 8 to provide a modern, responsive interface and native Windows look and feel. The application lets users “debloat” their system by removing pre-installed apps and Windows features that may be unnecessary or resource-heavy, helping free up resources and storage. It also offers system tweaks to improve responsiveness, reduce background overhead, and optimize system settings for gaming or heavy usage workflows. Privacy enhancements are part of its core offering: toggles for telemetry, data-collection features, background apps and more give users greater control over what their OS is tracking or doing under the hood. -
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.NET C# USB library for WinUSB, LibUsb-Win32, and libusb-1.0. Using the common device classes, applications work with all operating systems and drivers without modification. Lots of example code. Open source software at sourceforge.net.
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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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N_m3u8DL-RE
Cross-Platform, modern and powerful stream downloader
N_m3u8DL-RE is a modern cross-platform command-line downloader designed to capture and save streaming media delivered through protocols such as HLS, DASH, and MSS. The tool enables users to download both video-on-demand and live streams, then automatically process and merge media segments into playable files. Built with performance and flexibility in mind, it supports multiple operating systems including Windows, Linux, and macOS. The project includes extensive command-line options for controlling output paths, naming patterns, and temporary storage behavior. It is widely used in advanced media workflows where automated stream acquisition and local archiving are required. Overall, N_m3u8DL-RE functions as a powerful and actively developed utility for handling modern streaming media downloads. -
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UniGetUI
The Graphical Interface for your package managers
The main goal of this project is to create an intuitive GUI for the most common CLI package managers for Windows 10 and 11, such as WinGet, Scoop, Chocolatey, Pip, Npm, .NET Tool, and PowerShell Gallery. With this app, you can easily download, install, update, and uninstall any software published on the supported package managers. -
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Mass Image Compressor
Compress, Convert, Watermark and Resize Images/Photographs in bulk
Reduces up to 90% image size and still keeps the image clarity pristine. Mass Image Compressor (MIC) is one of the most popular, reliable, easy-to-use utility to compress, convert, watermark and resize multiple images at once. Just drag & drop the files and folder and it will compress all images. Best for website image optimization, photographs, game assets, animated image compression. Input: Almost all popular image format, including raw camera format Output: JPEG, PNG, WebP, GIF, AVIF Microsoft Store (If you want to support 💰 project): https://apps.microsoft.com/detail/9NF6R54S63L3?cid=sf Portable version available here : https://sf.net/projects/icompress/files/icompress/Mass%20Image%20Compressor/ If you are using Windows 7 or 8.x, use above link to download MassImageCompressorV3.3.3.msi from above. macOS option: https://mic.cognirush.com/macos/ -
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libusbK
A complete software solution for windows usb devices
libusbK is a complete driver/library solution for vendor class usb device interfaces. If you are a usb developer or usb device manufacturer seeking a driver solution for a new USB widget then libusbK could be for you. libusbK encompasses a 100% WinUSB compatible api/funtion set. All WinUSB power/pipe polices are fully supported by the libusbK driver. In Addition, libusbK has full support for isochronous endpoints and an extensive set of additional modules to simplify development. Source code repository using github: https://github.com/mcuee/libusbk -
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Screen Ruler
Ruler tool for measuring in pixels, centimeters, inches and points
Screen Ruler is a lightweight and configurable ruler tool for Windows Desktop. It allows you to measure the size of elements on the screen in different units, including pixels, centimeters and inches. Measuring is possible either using a two-dimensional, rectangular ruler scale or a one-dimensional, horizontal or vertical scale. The ruler can be moved and resized precisely using either the mouse or the keyboard and custom marking lines can be added. Besides coming with a light and a dark theme, Screen Ruler also allows you to fully customize its appearance by changing all color settings. Get support: https://sourceforge.net/p/screenruler/discussion/ https://github.com/bluegrams/ScreenRuler/issues Support the development: https://ko-fi.com/alxnull -
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EarTrumpet
Volume Control for Windows
Take full control of all your audio with EarTrumpet! EarTrumpet is a simple, easy-to-use volume control program for Windows that lets you easily control the volume of specific channels. If you've ever wanted to individually control the volume of everything on your Windows PC, or have grown tired of shifting the volume between apps like Skype and Spotify, EarTrumpet is the best option for you. With EarTrumpet you can cease constantly adjusting your volume to whatever it is you are currently listening to. Simply adjust the volume once for every app you use, and sit back and enjoy the perfect level of volume every time. EarTrumpet also comes with some nifty features, such as multi-channel aware peaking, default playback device management, configurable hotkeys and more. -
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Monke Mod Manager
Mod Installer for the PC version of Gorilla Tag
MonkeModManager is a mod management tool created for games within the Gorilla Tag ecosystem, providing users with an easy way to install, update, and manage mods without manual file handling. The application simplifies the modding process by offering a graphical interface where users can browse available mods and apply them with minimal effort. It automatically handles file placement, dependency management, and compatibility checks, reducing the risk of user error. The manager also supports updating mods, ensuring that users always have access to the latest versions without needing to track changes manually. Designed with accessibility in mind, it allows even non-technical users to customize their gameplay experience. It also includes safety mechanisms to help prevent issues such as corrupted installations or incompatible mod combinations. -
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BetterJoy
Allows the Nintendo Switch Pro Controller, Joycons and SNES controller
BetterJoy is a Windows application that enables Nintendo Switch controllers, including Joy-Con and Pro Controllers, to function seamlessly on PC by emulating standard input devices such as XInput. It acts as a compatibility layer that allows these controllers to be used with a wide range of games, emulators, and software that would otherwise not recognize them natively. The software supports integration with popular emulators like Cemu, Dolphin, and Yuzu, as well as general system-wide input for PC gaming. One of its standout features is gyro support, which can be mapped to mouse movement or used in compatible games for motion control. It also allows users to remap buttons, including special inputs like capture and SL/SR buttons, providing a high degree of customization. BetterJoy works over both USB and Bluetooth connections, making it flexible for different setups. -
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Chocolatey
Chocolatey - the package manager for Windows
Chocolatey has the largest online registry of Windows packages. Chocolatey packages encapsulate everything required to manage a particular piece of software into one deployment artifact by wrapping installers, executables, zips, and/or scripts into a compiled package file. Package submissions go through a rigorous moderation review process, including automatic virus scanning. The community repository has a strict policy on malicious and pirated software. Many organizations face the ongoing challenge of deploying and supporting various versions of software. Chocolatey allows organizations to automate and simplify the management of their complex Windows environments. Our customers have experienced a massive reduction in effort, improved speed of deployment, high reliability, and comprehensive reporting. Whether you are looking to create your first package or planning to fully automate your entire Windows Lifecycle. Its time to step out of the dark ages and stop doing things manually. -
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PEASS-ng
Privilege Escalation Awesome Scripts SUITE
These tools search for possible local privilege escalation paths that you could exploit and print them to you with nice colors so you can recognize the misconfigurations easily. All the scripts/binaries of the PEAS suite should be used for authorized penetration testing and/or educational purposes only. Any misuse of this software will not be the responsibility of the author or of any other collaborator. Use it at your own machines and/or with the owner's permission. Here you will find privilege escalation tools for Windows and Linux/Unix and MacOS. Find the latest versions of all the scripts and binaries in the releases page. Check the parsers directory to transform PEASS outputs to JSON, HTML and PDF.
