Open Source Software in C#

AspectDNG is a .NET multi-language aspect weaver. Aspects and base code may be written in any programming language, as soon as it compiles into MSIL.

BlogEngine.NET is an open source .NET blogging project. A blog platform with less complexity, easy customization, and one that takes advantage of the latest .NET features. Features: * Very easy to setup and customize. * It comes with all the features of a modern blog engine as well as new unique features such as AJAX comments and screenshot trackbacks. * Features social bookmarks, OpenSearch support, XFN tags, AJAX, Microsummaries, Gravatars, coComments, tag cloud, Google sitemap and other so called Web 2.0 features. * The referrer statistics enables you to see which websites link to you. * There is a variety of cool widgets that such as an AJAX post calendar or a blogroll that automatically retrieves the latest posts from each blog and displays the title beneath the blog. * It features a very advanced commenting system in AJAX that supports country flags, live preview, Gravatars, coComments. * It supports sindication feeds in any possible location. * Trackbacks and pingbacks. * The search capability of BlogEngine.NET allows the visitors to search in the comments. * It supports the creation of static pages that exist outside the blog chronology. * It fully supports multiple authors to write posts on the same blog. * Cool themes * All the controls in BlogEngine.NET are 100% XHTML 1.0 compliant. * BlogEngine.NET is built from the ground up using nothing but C# and ASP.NET 2.0. It means that you can write new controls and themes by using the skills you already have as a .NET developer.

Build Studio offers a complete solution for an automated software build process.

The GlynnTucker.Cache assembly provides a data structure for caching slow data retrievals, for example data retrieved from a database server over the network. Think of it as a Hashtable that can automatically expire its data after a set amount of time or a specified period of inactivity, on a per-object basis. It is written in C# and dual licensed under the GPL/MPL, it should work with any .NET language.

DaveChart is a free .NET charting library.

A Chat Server and Client Application written in .Net FrameWork

Composite C1 CMS is a fully featured free open source web Content Management System developed for (and by) web professionals who focus on customized websites and content. Broad support for ASP.NET features like Razor, .master pages, MVC and Web Forms. Very front-end developer friendly.

A test code coverage tool for C# .NET

db4o (database for objects) is the embeddable open source object database for C#. Features include: fast native C# object persistence, ACID transactions, Native Queries, automatic class schema recognition, small footprint, zero administration.

Yuza open erp it's a open source enterprise Erp Application, written in c# and running on MS Access database (also supported MS SQLServer MySql Oracle).

dnfBB is a powerful and fast 3 Tier, C# discussion board or forum for websites running ASP.NET. Native support for multiple forums within the same db structure. Designed to work with Firebird and MySQL, support for additional RDBMSs in the future.

Aciqra is a simple and easy to use desktop planetarium tracks the objects of the sky from anywhere on Earth to an accuracy of 1/5 of a degree for the next 1000 years.

C# Studio is a simple IDE for a C#/Mono/GTK# developer.

A project to produce an open source package that can compete with the commercial installer products

A .NET IoC container written in C#. Focus on programmatic configuration with builder syntax. Zero intrusion into existing code. Create components using reflection or with lambda expressions for unlimited flexibility. Managed disposal of any IDisposable components created by the container within a defined scope.

BTsys is a lightweight desktop bug tracking system, written using C# and ADO.NET for accesing to database

Quartz.NET is a full-featured, open source job scheduling system that can be used from smallest apps to large scale enterprise systems. Quartz.NET is a port of very propular open source Java job scheduling framework, Quartz. Quartz.NET supports clustering and database persistence out-of-the-box and has powerful means to schedule jobs using cron like expressions, interval triggers and exclusion advices.

Common.Logging is a library to introduce a simple abstraction to allow you to select a specific logging implementation at runtime. There are a variety of logging implementations for .NET currently in use, log4net, Enterprise Library Logging, NLog, to name the most popular. They do not share a common interface and therefore impose a particular logging implementation on the users of your library. Common.Logging solves this problem.

GROF# (Group Oriented Framework for C#) provides a simple API written in C# which provides group communication features for distributed applications.

The C# Mail Server is a C# port of the Java Email Server (JES). JES is an established email server targeted at small centrally maintained installations.

FO PDF is similar to ASP.NET Server Controls, written in C#

Advanced Data Provider is a transparent data provider to use with ADO. NET

Media Portal turns your PC in a very advanced Multi MediaCenter / HTPC. It allows you to listen to your favorite music & radio, watch your video's and DVD's, view, schedule and record live TV and much more. You get Media Portal for free/nothing/nada/noppes and best of all it is opensource. This means anyone can help developing Media Portal or tweak it for their own needs!

.NET profiler and generic profiling API.

PTM is an Open Source time tracking tool. It looks like Windows Task Manager. It is designed for tired and overworked people. Tasks are organized hierarchically (like folders in the Windows Explorer). Includes statistics. Measure yourself, this is a self improvement tool.

Aggie is a news aggregator: it is a desktop application that downloads the latest news and displays it in a webpage.

Drools.NET is a Business Rules Engine (BRE) based on Charles Forgy's Rete algorithm. Developers can now exploit a powerful Rule Engine through a completely managed .NET code base! Drools.NET is based on Jboss Rules, and comes with all the features of that Rules Engine.

QASL (Quality Assurance Scripting Language) is an open source, easy to use scripting language aimed towards both technical and non-technical users that provides a simple method for creating automated web application test scripts.

Lucene.Net is a source code, class-per-class, API-per-API and algorithmatic port of the Java Lucene search engine to the C# and .NET platform utilizing Microsoft .NET Framework. In addition to the APIs and classes port to C#, the algorithm of Java Lucene is ported to C# Lucene. This means an index created with Java Lucene is back-and-forth compatible with the C# Lucene; both at reading, writing and updating. In fact a Lucene index can be concurrently searched and updated using Java Lucene and C# Lucene processes.

Bouncy Castle Crypto is a set of APIs for OpenPGP, CMS, TLS, X.509, and PKCS#12.

AnkhSVN is a Visual Studio .NET addin for the Subversion version control system. It allows you to perform the most common version control operations directly from inside the VS.NET IDE. Not all the functionality provided by SVN is (yet) supported, but the majority of operations that support the daily workflow are implemented.

Database Commander is a database manager with user-friendly interface for Windows operation system.

.netTiers is a set of open source code generation templates that simplify the tasks of creating customized Application Tiers for your Microsoft.Net applications in just a few minutes. .netTiers utilizes the power of the best code generation tool available today, CodeSmith Tools. .netTiers generated architecture is custom to your domain, uses familiar patterns, and follows the guidance of Microsoft's recommended patterns and practices. In fact, the .netTiers base architecture is built upon the Microsoft Enterprise Library Application Blocks.

Inspired by JUnit, csUnit brings the power of unit testing to the .NET framework. csUnit is your key to unit testing and test-driven development using .NET languages such as C#, Visual Basic .NET, Visual J#, or Managed C++. csUnit provides versions for VS2002, VS2003, and VS2005 with add-in support. Of course there is also a stand-alone GUI application and a command line. csUnit is open-source but its license (zlib/libpng) also allows for using csUnit or parts of it in closed-source and commercial projects.

MonoUML is a CASE Tool for the mono framework. Designed for allowing to all UNIX/Linux developers faster computer systems design using a friendly GUI application. Not only a diagramming tool but rather a complete CASE tool based on the OMG standars and fully compatible with propietary tools.

Creuna Platform is a an open source web application framework based on Microsoft .NET and is fully written in C#. The aim for Creuna Platform is to make life easier for system developers by providing a highly competent component toolkit that increases the productivity and quality of a system. The framework contains components for data access, configuration handling, messaging and a broad range of utility classes, controls and services. The framework also has several components for the EPiServer CMS. Creuna Platform is licensed under Affero GNU General Public License Version 3.

SB Timmy is IMAP mail client for WAP/WML devices. It's written in C#/ASP.NET (works both with MS .NET Framework and Mono). Timmy handles all types of MIME (base64, quoted-printable encoded; multipart messages). It can send mail through SMTP. It's possible to download message attachments to your mobile device (like JPEG photos). Timmy is multi-language (currently english and lithuanian translations).

Caucho's Hessian binary protocol has been ported for .NET. HessianC# (www.hessiancsharp.org) represents the latest implementation of Caucho's Hessian Binary Web Service Protocol. Hessian is a lightweight, self-describing binary RPC protocol. Hessian is a lightweight alternative to the XML-based web services protocols. The Hessian makes web services usable without requiring a large framework. Because it is a binary protocol, it is well-suited to sending binary data without any need to extend the protocol with attachments. The Hessian protocol eliminates external API descriptions like WSDL. HessianC# is also available for Compact Framework. It supports IIS. It is powerful and easy to use.

IeUnit is a simple framework to test logical behaviors of web pages. It helps software engineers to create, organize and execute functional unit tests. IeUnit is an implementation of the xUnit framework in C# and JavaScript language. It uses Windows COM interface to control the Internet Explorer browser. Apart from web site testing, IeUnit also provides a simple way to to automate web browsing tasks through the smart-bookmark feature.

Deki Wiki is a free open source wiki and application platform for communities and enterprises. MindTouch DekiWiki was developed with an emphasis on usability, open standards, extensibility, and performance. DekiWiki began as a MediaWiki fork that was beta tested for a year and half across multiple verticals and use scenarios: manufacturing, education, non-profit, interactive design, software design and development, and more. Based on input from the beta users DekiWiki evolved into something significantly more than just another wiki. It facilitates information sharing in a contextually rich environment, which makes knowledge capture and sharing significantly better than traditional Intranet tools, network file servers, CMS, and any other wikis. MindTouch DekiWiki has the most comprehensive feature set, which includes a rich WYSIWYG Editor, page level file attachments which are indexed and searchable, hierarchical information organization, image galleries, information discovery tools (RSS feeds and a web interface), page and file versioning, page diffs, page level permissions, time based guest invitations, browse wiki link dialog, in-place images, and all data is stored in XML. Additionally, all control logic is being ported to MindTouch's Dream Framework, which is a .NET/Mono distributed application manager.

NetBpm is a .Net Port of JBpm. NetBpm is an open source platform for building, executing and managing workflows. It is very simple to use and integrate in other .Net applications. This Bpm Tool supports the build of Applications which are able to turn business models into executable software models. Business analysts are able to use a model driven approach to design, implement, execute and track business processes. So business people can easily react on business and strategy changes.

MyXaml allows developers the opportunity to create user interfaces dynamically with ease. It allows the design team to take advantage of the architectural strengths of XAML. It easily adds scalable, vector graphics and 3rd party controls. And, it gives your users the option to modify the interface dynamically. The XAML can also be secured using encryption and digital signing. Let us fully address the importance of several key points as they will most certainly be of use to your development needs.