Open Source C# Software

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.

gPhoto is a program and library framework that lets users download pictures from their digital cameras. The libgphoto2 library gives you access to hundreds of models of digital cameras on several platforms. GIT repo and Issue tracker lives at https://github.com/gphoto/ these days.

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.

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.

SharpDevelop is the open-source IDE for the .NET platform. Write applications in languages including C#, VB.NET, F#, IronPython and IronRuby, as well as target rich and reach: Windows Forms or WPF, as well as ASP.NET MVC and WCF. It starts from USB drives, supports read-only projects, comes with integrated unit and performance testing tools, Git, NuGet and a lot more features that make you productive as a developer.

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

MediaPortal turns your PC into a very advanced MediaCenter / HTPC. It allows you to listen to your favorite music & radio, watch and store your videos and DVDs, view, schedule and record live TV as a digital video recorder and much much more

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

Mail Notifier is free, modern email notifier with the latest user interface trends for Windows 10/11. It supports multiple accounts and IMAP/POP3 protocols. Enjoy customizable notifications, message previews, and more, all in 34 languages! For more details, please refer to the readme.txt file (Files tab, description below). Note: Gmail support is currently unavailable due to verification requirements by Google. Note: Outlook.com support is currently unavailable due to moving to OAuth2 authentication from login/password at Outlook servers.

Gnome Subtitles is a subtitle editor for the GNOME desktop. It supports the most common text-based subtitle formats, video previewing, timings synchronization and subtitle translation.

Aries is an easy to use and feature rich text editor which effectively allows users to modify documents rapidly with powerful features such as Rich Text editing, photo file manipulation, touch screen feature, full screen editing etc.

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.

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#.

A Windows application that uses Amazon E-Commerce Service for searching, reviewing and browsing products with user given parameters against Amazon.com catalogs. Application is targeted for home users.

Cloud Toolkit .Net provides many useful and good-looking .Net controls for use with .Net applications (VC++, VC#, VB.Net etc). Update (September 2011): The project has been inactive for a few years and will remain so. No support provided!

Cloud Web Browser is a web browser which uses Microsoft's Trident engine to render websites. It has features like: - Tabs - Bookmarks - Parental Control System - Language support - Theme support etc.

Use the pen! FormFlow is a software for filling XML based forms in Tablet PC environment. The system will include development UI for rapid modelling.

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.

Greenshot is a lightweight screenshot software tool for Windows that quickly creates screenshots of a selected region, window, or full screen; you can even capture complete (scrolling) web pages from Internet Explorer. Greenshot easily annotates, highlights, or obfuscates parts of the screenshot. Greenshot also exports screenshots in various ways: save to file, send to printer, copy to clipboard, attach to e-mail, send Microsoft Office programs, or upload to photo sites like Flickr or Picasa. And Greenshot has a lot more options, to simplify the creation of, and work with, screenshots every day. Overall, Greenshot is easy to understand and configurable, that's why it is an efficient tool for project managers, software developers, technical writers, testers, and anyone else creating screenshots.

Hathi, P2P client. Rewritten in C#, using mono and .net, for linux and windows platforms. Initial networking support for edonkey, with bittorrent in planning. We are looking for contributors!! Back in action after some busy days :)

An Open Source (C# .NET) TeamPlay Environment. - Permits the easy downloading of games that may not be available via Steam, and their Source Port derivatives. - Preconfigured for easy play. - Enables the easier download of enhanced user made content for such titles. - Enables easier Multi-Player. - May incorporate a chat client in later versions. - Encryption: May incorporate up to 9.99% U.S.-origin parts or components. Officially Supported Operating Systems: - Windows 7 Ultimate x86, N, x64 - Windows 7 Enterprise x86, N, x64 - Windows 7 Professional x86, N, x64 - Windows 7 Home Premium x86, N, x64 - Windows7 Home Basic x86, N, x64 - Windows 7 Starter N - Windows Vista Ultimate x86, x64 Ed. + More...

OpenMH (Open Multi-Head) is an open source, multi-monitor management engine for use with DirectX/OpenGL applications and game clients.

PellettiMies (PelletGuy in english) is a software to log and follow electric bills and the use and price of wood pellet. Designed to be use in homes/houses with wood pellet stoves and wood pellet heating.

Pocket Sudoku is the definite sudoku application for Pocket PC (Windows Mobile). It can currently generate sudoku puzzles using six different difficuties, solve any valid puzzle, show pencil marks, hint you when you've got stuck, and much more...

Roboships is a programming game, you must build and program 2-10 roboships to fight against each other. Ships can have different hulltypes and set of weapons. Programming is done with flowcharts and battles are fought in 2D sea.