Open Source C# Software - Page 5

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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.

  • MongoDB Atlas runs apps anywhere Icon
    MongoDB Atlas runs apps anywhere

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  • 1
    Captura

    Captura

    Capture Screen, Audio, Cursor, Mouse Clicks and Keystrokes

    Capture Screen, WebCam, Audio, Cursor, Mouse Clicks and Keystrokes. Captura is 100% free. You don't need to spend a penny. You can support by donating or just starring the repository. Source-code for Captura is available on GitHub under the terms of the MIT license. Available in over 30 languages. Very simple to translate. Captura can run unobtrusively remaining minimized to the System Tray. Hello developers! Captura can be used from your terminal. Only for Portable builds. Take ScreenShots and control recordings from the keyboard even when Captura is in System Tray using Configurable Hotkeys. Captura can do the much-demanded task of mixing Microphone input audio and Speaker output audio. Mouse Clicks and Keystrokes can be shown in the recordings. Options are present for customization. Captura can capture specific regions using the Region Selector.
    Downloads: 85 This Week
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  • 2
    DualSenseX

    DualSenseX

    Connect your DualSense Controller, use Adaptive Triggers

    DualSenseX is an open-source utility that brings advanced control and customization to Sony DualSense and DualShock controllers on Windows, offering functionality that goes far beyond the native drivers. The application allows gamers to tailor every aspect of their controller experience, including adaptive trigger behavior, haptic intensity, and light bar customization, which empowers users to fine-tune feedback to match the feel of their favorite games. It also provides real-time battery monitoring, gyro/accelerometer calibration, and remappable button layouts, giving players hardware flexibility usually reserved for premium third-party software. DualSenseX works with both Bluetooth and USB connections, automatically detecting compatible controllers and maintaining stable input even during intense gaming sessions. Additionally, it includes profiles and presets so users can save and switch configurations quickly for different games or genres.
    Downloads: 82 This Week
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  • 3
    Night Mode for Windows

    Night Mode for Windows

    Tool to help dimming screen on Microsoft Windows systems

    This program is designed for people who like dark screens and want to protect their eyes. So if your monitor is too bright, especially during the night - even if you set the brightness to minimum, download Night Mode for Windows - a small tool to dim your whole desktop and all windows on all monitors. You may also use global keyboard shortcuts: CTRL + Windows key + F11 to decrease brightness CTRL + Windows key + F12 to increase brightness CTRL + Windows key + F9 to maximum dim the screen (boss-key) CTRL + Windows key + F10 to change brightness to maximum There is also possible to set initial value of brightness when starting the program, just add argument in percent (without % sign). This example will dim your brightness at 30%: nightmode.exe 30 This program is free for personal & commercial use. It works on all Windows XP and higher (2k/2003/Vista/2008/7/8/8.1/10) both in 32-bit and 64-bit editions. It may require .NET 4.0 framework.
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    Downloads: 421 This Week
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  • 4
    YoutubeDownloader

    YoutubeDownloader

    Downloads videos and playlists from YouTube

    YoutubeDownloader is a cross-platform GUI application built with C#, using YoutubeExplode to fetch videos, playlists, or channel content from YouTube. It supports keyword search, batch download, format selection, vigilant mode, and FFmpeg integration. Available for Windows, Linux, and macOS (portable binaries included). It’s actively maintained and open-source under GPL‑3.0+.
    Downloads: 77 This Week
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  • Enterprise-grade ITSM, for every business Icon
    Enterprise-grade ITSM, for every business

    Give your IT, operations, and business teams the ability to deliver exceptional services—without the complexity.

    Freshservice is an intuitive, AI-powered platform that helps IT, operations, and business teams deliver exceptional service without the usual complexity. Automate repetitive tasks, resolve issues faster, and provide seamless support across the organization. From managing incidents and assets to driving smarter decisions, Freshservice makes it easy to stay efficient and scale with confidence.
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  • 5
    mpv.net

    mpv.net

    mpv.net is a modern media player for Windows that works just like mpv

    mpv.net is a modern desktop media player for Windows based on the popular mpv player. mpv.net is designed to be mpv compatible, almost all mpv features are available because they are all contained in libmpv, this means the official mpv manual applies to mpv.net. mpv focuses on the usage of the command line and the terminal, mpv.net retains the ability to be used from the command line and the terminal and adds a modern Windows GUI on top of it. Video output that is capable of many features loved by videophiles, such as video scaling with popular high-quality algorithms, color management, frame timing, interpolation, HDR, and more. Leverages the FFmpeg hwaccel APIs to support DXVA2 video decoding acceleration. mpv.net is based on libmpv which offers a straightforward C API that was designed from the ground up to make mpv usable as a library and facilitate easy integration into other applications. mpv is like VLC not based on DirectShow or Media Foundation.
    Downloads: 71 This Week
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  • 6
    Kickass Undelete

    Kickass Undelete

    A free, open source file recovery tool for Windows.

    Kickass Undelete is a free, fully featured, file recovery tool for Windows. Accidentally deleted a file? Never fear; the data is probably still on your drive and may be recoverable. Kickass Undelete finds all of the deleted files on your hard drive, flash drive or SD card and allows you to recover them.
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    Downloads: 519 This Week
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  • 7
    RED searches and deletes empty directories recursively below a given start folder and shows the result in a well arranged tree. Further you can create some custom rules for keeping and deleting folders. Empty files in directories can also be ignored.
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    Downloads: 355 This Week
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  • 8
    Libplanet

    Libplanet

    Blockchain in C#/.NET for on-chain, decentralized gaming

    Libplanet is a .NET library for creating multiplayer online game in decentralized fashion, which means the whole gameplay occurs on a peer-to-peer network among equal nodes rather than an authorized central server. Under the hood, it incorporates many features (e.g., digital signature, BFT consensus, data replication) of a blockchain.
    Downloads: 69 This Week
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  • 9
    QTTabBar is extension for Windows Explorer that brings tabbed browsing to Microsoft's file browser, along with a host of other great features. Under new management! Now in public beta!
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    Downloads: 289 This Week
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  • Build Securely on AWS with Proven Frameworks Icon
    Build Securely on AWS with Proven Frameworks

    Lay a foundation for success with Tested Reference Architectures developed by Fortinet’s experts. Learn more in this white paper.

    Moving to the cloud brings new challenges. How can you manage a larger attack surface while ensuring great network performance? Turn to Fortinet’s Tested Reference Architectures, blueprints for designing and securing cloud environments built by cybersecurity experts. Learn more and explore use cases in this white paper.
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  • 10
    iCopy - Free Photocopier

    iCopy - Free Photocopier

    Print your copies using your scanner and printer as a photocopier

    iCopy lets you combine your scanner and printer into a powerful, but easy to use photocopier by only pressing a button. Its simple user interface lets you manage scanner and printer options with a few clicks.
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    Downloads: 317 This Week
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  • 11
    EarTrumpet

    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.
    Downloads: 68 This Week
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  • 12
    AlphaClicker

    AlphaClicker

    Windows Autoclicker with a modern UI

    Alpha Clicker is an auto clicker for Windows with a modern user interface. It is open-source, unlike many other auto clickers. Ever got tired of the old design of your auto clicker? This is for you. Just search "Auto clicker" and you will get a bunch of ancient auto clickers (which work but look ancient). It basically works just like any other auto clicker.
    Downloads: 67 This Week
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  • 13
    PKHeX

    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.
    Downloads: 66 This Week
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  • 14
    FlacSquisher

    FlacSquisher

    A utility to convert a Flac library to MP3, Opus or Ogg Vorbis format.

    FlacSquisher converts a library of Flac files to MP3, Opus, or Ogg Vorbis format, maintaining the directory structure in the original library. That way, you can maintain your Flac files for home listening, and easily convert them to MP3, Opus, or Ogg format for mobile use, where storage space is more often tightly constrained.
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    Downloads: 297 This Week
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  • 15
    Shadowsocks for Windows

    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).
    Downloads: 63 This Week
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  • 16
    Watt Toolkit

    Watt Toolkit

    Open source cross-platform multi-purpose game toolkit

    "Watt Toolkit" is an open-source cross-platform multi-purpose game toolkit, most of its features require you to download and install Steam to use it. Make the Steam community, Github, Google reCAPTCHA, Pixiv, Discord, Twitch and other domestic hard-to-access pages accessible properly. Some JS scripts are injected into web pages through an acceleration service that intercepts web requests, providing functionality similar to that of a web plugin. Functions similar to Steam community 302, using Titanium-Web-Proxy open source project for local anti-generation. Switch between Steam accounts that are already logged in on the current PC with one click, and manage features such as sorting your home shared library. Lets you manage your Steam game inventory directly, not only by downloading older Steam games but also by managing Steam game achievements directly, supporting unlocked achievements and unlocked achievements.
    Downloads: 61 This Week
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  • 17

    WebAutoType

    Adds support to KeePass AutoType for URL matching

    This is a plugin to KeePass <http://www.KeePass.info> to allow the AutoType functionality to work with browser URLs as well as window titles. If integration with KeePass Check for Updates is required, install http://sourceforge.net/projects/kpsfupdatechecker
    Leader badge
    Downloads: 304 This Week
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  • 18
    EverythingToolbar

    EverythingToolbar

    Everything integration for the Windows taskbar

    EverythingToolbar is an open-source Windows utility that integrates Voidtools’ “Everything” file search directly into the Windows taskbar search bar. It mimics the look and feel of Windows 10/11 search and offers seamless real‑time file search powered by Everything. EverythingToolbar includes common search filters out of the box. For advanced users, it can synchronize with Everything's custom filters, giving you complete control over your search experience. Enable this feature by checking Use Everything filters in the EverythingToolbar's Filters settings. Easily toggle search flags (match case, whole word, match path, and regex) to find your files with precision. Create custom Open with actions by navigating to Settings → Custom actions. Enable Automatically apply rules based on condition to execute commands automatically based on file type and regular expressions. Leave the regex field empty to display the action only in the context menu.
    Downloads: 59 This Week
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  • 19
    SourceCookifier: Plugin for Notepad++
    A plugin which uses Exuberant Ctags to parse either only the currently activated source file or multiple files of so-called sessions. The results are shown and can be browsed in a treeview inside of a dockable window.
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    Downloads: 266 This Week
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  • 20
    MeGUI
    MeGUI is the most comprehensive GUI based ISO MPEG-4 solution. It suports MPEG-4 ASP (xvid), MPEG-4 AVC (x264), AAC, MP2, MP3, Flac, Vorbis, AC3 audio and various common containers support (MP4, MKV, AVI, M2TS).
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    Downloads: 275 This Week
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  • 21
    DiscordChatExporter

    DiscordChatExporter

    Saves Discord chat logs to a file

    DiscordChatExporter is a cross-platform utility that allows users to export Discord chat histories into structured files for archival, analysis, or backup purposes. The tool connects to Discord accounts and retrieves message history from servers, channels, or direct messages, then converts the data into formats such as HTML or JSON. It is designed to preserve message structure, timestamps, attachments, and formatting so exported conversations remain easy to navigate and review. The project is widely used for moderation audits, research, community archiving, and personal record keeping. With both command-line and GUI usage patterns available through the ecosystem, it supports automation as well as manual workflows. Overall, DiscordChatExporter provides a reliable way to extract and preserve Discord communications outside the platform.
    Downloads: 57 This Week
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  • 22
    MonoGame

    MonoGame

    One framework for creating powerful cross-platform games

    One framework for creating powerful cross-platform games. The spiritual successor to XNA with thousands of titles shipped across desktop, mobile, and console platforms. MonoGame is a fully managed .NET open source game framework without any black boxes. Create, develop and distribute your games your way. By leveraging C# and other .NET languages on Microsoft and Mono platforms you can write modern, fast, and reliable game code. We currently support iOS, Android, MacOS, Linux, all Windows platforms, PS4, PSVita, Xbox One, and Switch with more platforms on the way. All the code is available to you ensuring you'll have the ability to make changes when you need to or even port to whole new platforms. With 1000s of shipped games we have built up a vibrant community of developers which use MonoGame for both fun and profit.
    Downloads: 57 This Week
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  • 23
    PDFPatcher

    PDFPatcher

    A versatile toolkit for PDF manipulation

    PDFPatcher (aka “PDF补丁丁”) is a versatile toolkit for PDF manipulation—editing document metadata, bookmarks, page layout, content restrictions, rotation, compression, merging/splitting, image extraction, and more, all within an intuitive interface. Merge/split PDFs or images, preserve or add bookmarks, and set page dimensions. Batch style/color/target changes, regex/XPath search/replace, mid‑page positioning. Modify PDF metadata, page numbers, links, initial view mode, and remove open actions.
    Downloads: 57 This Week
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  • 24
    Windows Service Wrapper permissive

    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.
    Downloads: 57 This Week
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  • 25
    PNotes
    PNotes is light-weight, flexible, skinnable manager of virtual notes on your desktop. It supports multiple languages, individual note's settings, transparency and scheduling. Absolutely portable as well - no traces in registry. PNotes.NET edition requires .NET framework 4 Client Profile
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    Downloads: 243 This Week
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