Open Source 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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  • 1
    KeePass

    KeePass

    A lightweight and easy-to-use password manager

    KeePass Password Safe is a free, open source, lightweight, and easy-to-use password manager for Windows, Linux and Mac OS X, with ports for Android, iPhone/iPad and other mobile devices. With so many passwords to remember and the need to vary passwords to protect your valuable data, it’s nice to have KeePass to manage your passwords in a secure way. KeePass puts all your passwords in a highly encrypted database and locks them with one master key or a key file. As a result, you only have to remember one single master password or select the key file to unlock the whole database. And the databases are encrypted using the best and most secure encryption algorithms currently known, AES and Twofish. See our features page for details.
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    Downloads: 1,401,439 This Week
    Last Update:
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  • 2
    Pidgin IM

    Pidgin IM

    A universal instant messaging (IM) program

    See https://pidgin.im/about/ for more information. Pidgin is an instant messaging program which lets you log in to accounts on multiple chat networks simultaneously. It runs on Windows, Linux, and other UNIX operating systems. Pidgin is compatible with the following chat networks out of the box: AIM, ICQ, Google Talk, Jabber/XMPP, MSN Messenger, Yahoo!, Bonjour, Gadu-Gadu, IRC, MXit, Novell GroupWise Messenger, Lotus Sametime, SILC, SIMPLE, MySpaceIM, and Zephyr. It is written in C and makes heavy use of GLib and GTK+. Finch is a command line instant messaging program. It also lets you log in to accounts on multiple chat network simultaneously, and it is compatible with the same chat networks as Pidgin. It is written in C and makes heavy use of GLib and ncurses.
    Leader badge
    Downloads: 4,634 This Week
    Last Update:
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  • 3
    NAPS2 - Not Another PDF Scanner

    NAPS2 - Not Another PDF Scanner

    Scan documents to PDF and other file types, as simply as possible.

    Visit NAPS2's home page at www.naps2.com. NAPS2 is a document scanning application with a focus on simplicity and ease of use. Scan your documents from WIA- and TWAIN-compatible scanners, organize the pages as you like, and save them as PDF, TIFF, JPEG, PNG, and other file formats. Available on Windows, Mac, and Linux. NAPS2 is currently available in over 40 different languages. Want to see NAPS2 in your preferred language? Help translate! See the wiki for more details.
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    Downloads: 731 This Week
    Last Update:
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  • 4
    CasparCG: Pro Video & Graphics Play-Out

    CasparCG: Pro Video & Graphics Play-Out

    Pro Video & Graphics Play-Out SW, proven in 24/7 broadcasts since 2006

    Playback and record video, graphics and audio to multiple screens via DVI/HDMI/SDI in SD, HD, 2K and 4K.
    Downloads: 59 This Week
    Last Update:
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    Powerful App Monitoring Without Surprise Bills

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    Tired of monitoring tools that punish you for scaling? AppSignal offers transparent, predictable pricing with every feature unlocked on every plan. Track errors, monitor performance, detect anomalies, and manage logs across Ruby, Python, Node.js, and more. Trusted by developers since 2012 with free dev-to-dev support. No credit card required to start your 30-day trial.
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  • 5
    Arisen Studio

    Arisen Studio

    Browse, Download and Install Mods for PlayStation 3 & Xbox 360

    The elegant, powerful, and open-source mod manager. Arisen Studio allows you to easily browse through a regularly updated database of mods, game saves, homebrew, resources, themes, and much more for the PlayStation 3 and Xbox 360. All mods have been tested and verified in our library, which is populated by myself, a few friends, and awesome contributors. Arisen Studio can also be used as an FTP client to install and uninstall mods directly from your console. Without the need to search up old posts or use file managers - this will do everything for you.
    Downloads: 17 This Week
    Last Update:
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  • 6
    FCKeditor

    FCKeditor

    FCKeditor (retired)

    FCKeditor is the previous version of CKEditor and has been discontinued after version 2. The new CKEditor is redesigned from the ground up, offering more WYSIWYG text editing features, enhanced security and better integration. Don’t force yourself with retro FCKeditor. Switch to the new, cool CKEditor at ckeditor.com
    Downloads: 11 This Week
    Last Update:
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  • 7
    OpenVPN-Admin is a GUI for OpenVPN, programmed in Mono. Packages are available for Linux and Windows. Packages for Nokia 770 are under development. OpenVPN-Admin should work on every platform where Mono runs. Included in OpenVPN-Admin is a Certificate wi
    Downloads: 11 This Week
    Last Update:
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  • 8
    This is the home of the old MindTouch Platform and Core. This project was turned over to the community in 2010. Please visit www.MindTouch.com for the most up to date version of MindTouch--software that accelerates customer success. More info on the old Core and Platform: http://mndt.ch/oss-dep Thanks for your interest and for making the old MindTouch open source one of the most popular (top 5) open source projects in the world from 2007-2010. Some key terms commonly associated with this project are: customer support, self service support, customer success center, help center, enterprise wiki, etc
    Downloads: 4 This Week
    Last Update:
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  • 9
    This is a calendar control with multi-select. It provides a point and click interface for selecting holidays or special days. It previously extended on MonthCalendar, now it has a fixed size in all regions and all drawing is handled internally.
    Downloads: 0 This Week
    Last Update:
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  • 10
    A time schedule graphical component with a point and click interface. This is a custom drawn control written in C#. It provides an easy interface for laying out periods of time associated with a predefined color/state. The control respects local timeform
    Downloads: 0 This Week
    Last Update:
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  • 11
    Direct connect client and server. It will be possible to run our server on a Linux computer and remotely control the server through the clients which will be able to run on Win/Linux/Mac. The downloads are arriving to the server computer.
    Downloads: 0 This Week
    Last Update:
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  • 12
    CRaPI - Correct, Robust and Perfect API for simulated RoboCup - is a framework for development of teams in the RoboCup simulated league. The framework is event driven, not bound to any specific agent architecture and works with soccer server 9.x
    Downloads: 0 This Week
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  • 13
    A promo platform game in 3-D designed to depict our school .
    Downloads: 0 This Week
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  • 14
    A fork of pidgin which aims to provide minor features that have not been addressed by the pidgin development team (including manual textbox resizing). See funpidgin.sf.net for details.
    Downloads: 0 This Week
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  • 15
    The Infomix Portal system is a flexibel Portal system. Infomix shod be used by companys to share information to costumers, parners and staff.
    Downloads: 0 This Week
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  • 16
    Mobile.Windows.Forms offers functionality for developing mobile applications using .NET Compact Framework 1.0, including multiple screen configurations, keyboard navigation and XML based user interface definitions.
    Downloads: 0 This Week
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  • 17
    This project intends to build a complete CallerID-function for home- or small buisniess environments. It depends on simple hardware which everyone can build. It will present the incomming call's number on every workstation on the network.
    Downloads: 0 This Week
    Last Update:
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  • 18
    The Pentaho Personalizer is based on the "dead" project PentahoLooker. The Pentaho Personalizer is sponsored by Lizacom and have a "commercialy" financed core of developers to ensure that the project do not "die" by lack of time or interest.
    Downloads: 0 This Week
    Last Update:
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  • 19
    This program is an alarm clock, which is configurable. It is simple to use. It is compatible with Windows and Linux. It uses gstreamer to play files in Linux. It is coded in C# and runs in mono on Linux. It support multiple languages.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 20
    Full-featured, fully customizable, multilingual, skinable, multi-document web based WYSIWYG HTML editor control. Microsoft Internet Explorer, Gecko based browsers (Firefox, Netscape, Mozilla) and Opera 9 are supported.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 21
    SharpKOM
    SharpKOM (#KOM) is a .NET/Mono client for the LysKOM conferencing system (http://www.lysator.liu.se/lyskom/).
    Downloads: 0 This Week
    Last Update:
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  • 22
    Talking Digital Clock will be an application available in J2ME for phones/PDAs compliant to MIDP 2.0 and CLDC1.0/1.1. A similar application with more advanced functions/functions will be developed in .Net using C# and .Net 2.0.
    Downloads: 0 This Week
    Last Update:
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  • 23
    This is a Visual Game Editor built to support editing of biowares award winning games. Starting with DA:O
    Downloads: 0 This Week
    Last Update:
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  • 24
    An ASP.NET forum module which is supposed to work on Mono and .NET with MySQL, MS SQL, PostgreSQL and Firebird databases and written on c#.
    Downloads: 0 This Week
    Last Update:
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  • 25
    VideoSiteManager

    VideoSiteManager

    Link manager software

    VideoSiteManager is a link manager software with capabilities of adopting links from many video Web sites. No longer will you need a web browser thanks to this program.
    Downloads: 0 This Week
    Last Update:
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