Browse free open source C# Frameworks and projects below. Use the toggles on the left to filter open source C# Frameworks by OS, license, language, programming language, and project status.

  • The Most Powerful Software Platform for EHSQ and ESG Management Icon
    The Most Powerful Software Platform for EHSQ and ESG Management

    Addresses the needs of small businesses and large global organizations with thousands of users in multiple locations.

    Choose from a complete set of software solutions across EHSQ that address all aspects of top performing Environmental, Health and Safety, and Quality management programs.
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  • AestheticsPro Medical Spa Software Icon
    AestheticsPro Medical Spa Software

    Our new software release will dramatically improve your medspa business performance while enhancing the customer experience

    AestheticsPro is the most complete Aesthetics Software on the market today. HIPAA Cloud Compliant with electronic charting, integrated POS, targeted marketing and results driven reporting; AestheticsPro delivers the tools you need to manage your medical spa business. It is our mission To Provide an All-in-One Cutting Edge Software to the Aesthetics Industry.
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  • 1
    Boxerp is an open source framework for rich desktop client applications. It supports Windows (Windows.Forms and WPF) and also Linux and other POSIX systems (Gtk#).
    Downloads: 0 This Week
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  • 2
    Brahma is an open-source library written for the .NET 3.5 framework (in C# 3.0), to provide high-level access to parallel streaming computations on a variety of processors, including GPUs.
    Downloads: 0 This Week
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  • 3
    BugEye is an XML-based unit test creation framework. Being XML-based, it can be easily translated to almost any language. The current translations are C#, Java, JavaScript, and Visual Basic. Future translations include C++, Python, Perl, and PHP.
    Downloads: 0 This Week
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  • 4

    ByChance Framework

    A generic framework for the generation of game levels.

    This project has moved to GitHub: https://github.com/npruehs/ByChance
    Downloads: 0 This Week
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  • No-code email and landing page creation Icon
    No-code email and landing page creation

    Make campaign creation fast and easy with Knak

    Built for speed and collaboration, Knak streamlines campaign production with modular templates, real-time editing, simple collaboration, and seamless integrations with leading MAPs like Adobe Marketo Engage, Salesforce Marketing Cloud, Oracle Eloqua, and more. Whether you're supporting global teams or launching fast-turn campaigns, Knak helps you go from brief to build in minutes—not weeks. Say goodbye to bottlenecks and hello to marketing agility.
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  • 5
    C# (.NET) class library to assist with parsing command-line arguments. Design has been originally derived from the Perl Getopt libraries. Code is designed for flexibility and tight integration with features provided by the .NET platform.
    Downloads: 0 This Week
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  • 6
    C# Extension Methods

    C# Extension Methods

    C# Extension Methods | Over 1000 extension methods:

    Enhance the .NET Framework with over 1000 extension methods. Open a binary file, reads the contents of the file into a byte array, and then closes the file. Extract all the files in the specified zip archive to a directory on the file system. Get started by learning C# Extension Methods from cheat sheet. Get started by searching from documented extension methods. Get started by searching and trying some online example.
    Downloads: 0 This Week
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  • 7
    C# Framework that implements the iRobot Roomba SCI spec. Also included is a diagnostic application named Roomba-Term that uses the framework. I invite you to use the Roomba-Term software as a tool & an example on how to program with the C# SCI
    Downloads: 0 This Week
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  • 8
    An API written in C# using the .NET 2.0 framework which allows developers to interact with the delicious (http://del.icio.us) social bookmarking service. NOTE: Repository is being migrated to https://github.com/zobie/DeliciousNet
    Downloads: 0 This Week
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  • 9
    Extensible IDE and framework for managing small and large-scale code generation projects. Through an abstracted code generation layer, CH3ETAH can support almost any template language, workflows, and even tasks not directly related to code generation.
    Downloads: 0 This Week
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  • Digital business card + lead capture + contact enrichment Icon
    Digital business card + lead capture + contact enrichment

    Your complete in-person marketing platform

    Share digital business cards, capture leads, and enrich validated contact info - at events, in the field, and beyond. Powered by AI and our proprietary data engine, Popl drives growth for companies around the world, turning every handshake into an opportunity.
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  • 10
    CLAM (Common Language Automation Machine) attempts to eliminate the rote mapping of data to objects that is prevalent in most modern development languages by breaking the bonds of relational data and providing a generic mechanism for retrieving data.
    Downloads: 0 This Week
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  • 11
    CLI.Net is a framework, class-per-class, API-per-API and algorithmic port of the Jakarta Commons CLI framework to the C# and .NET platform utilizing Microsoft .NET Framework.
    Downloads: 0 This Week
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  • 12

    COOL C# framework

    COOL C# framework

    This framework is translation of COOL Java framework for Compilers course by Prof. Alex Aiken on Coursera platform: https://www.coursera.org/course/compilers Note: the framework is unofficial, but Honor Code still applies! Please download framework file and refer to README for further information how to use this framework.
    Downloads: 0 This Week
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  • 13
    CSLA .NET

    CSLA .NET

    A home for your business logic in any .NET application

    CSLA .NET is a software development framework that helps you build a reusable, maintainable object-oriented business layer for your app. Created by Rockford Lhotka, this framework reduces the cost of building and maintaining applications. The framework enables developers to leverage the power of object-oriented design as the basis for creating powerful applications. Business objects based on CSLA automatically gain many advanced features that simplify the creation of Windows, web, service, and mobile interfaces. CSLA .NET allows great flexibility in object persistence, so business objects can use virtually any data sources available. The framework supports 1-, 2- and n-tier models through the concept of mobile objects. This provides the flexibility to optimize performance, scalability, security and fault tolerance with no changes to code in the UI or business objects.
    Downloads: 0 This Week
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  • 14
    CSTL is a port of the C++ STL to C# 2.0 and .NET. The library utilizes C# generics, anonymous methods, and enumerable iterators, while alleviating some of C#'s deficiencies (no C++ templates, limited operator overloading, no C++ style iterators, etc).
    Downloads: 0 This Week
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  • 15
    CSharpFrame
    C# Framework. CSF is intended to be used primary for our open source applications like DiMo(sourceforge) etc. WEBNETSOFT http://www.webnetsoft.gr
    Downloads: 0 This Week
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  • 16
    CUAHSI water1flow web service 1.0 api provide programming interface for water1flow web services. Api will expose to .net, java, php, javascript etc programming language. Developed by Joe hu at MapWindow software lab,Idaho State University
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  • 17
    CVIDN is a set of class written in C# allowing design of Visual Studio's applications using the National Instruments Labwindows CVI toolkit. It contains a Visual Designer to create user interfaces like WinForms.
    Downloads: 0 This Week
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  • 18
    CZEBOX is a referral Open Source implementation of ISDS DataBoxes (http://datoveschranky.info/), eGovernment messaging system founded by Ministry of Interior Czech Republic and Czech Post.
    Downloads: 0 This Week
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  • 19
    The cacawet framework is intended to provide serialization and edition services to ease the process of game development.
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  • 20
    CacheManager

    CacheManager

    CacheManager is an open source caching abstraction layer for .NET

    CacheManager is an open source caching framework for .NET written in C# and is available via NuGet. It supports various cache providers and implements many advanced features. A simple but very efficient implementation. This handle is faster than any other in most scenarios and works cross-platform. Two implementations are available, based on System.Runtime.Caching and based on the new Microsoft.Extensions.Caching.Memory package. Redis can be used as an extremely fast and reliable out-of-process (or distributed) solution. Another great distributed solution is memcached, which can be used as a layer. The Redis implementation is based on the popular StackExchange.Redis package. Couchbase is primarily a document database but can also be used for simple caching. ASP.NET comes with its own in-process memory cache which can be used as one layer. Our Web NuGet package also comes with a custom OutputCacheProvider.
    Downloads: 0 This Week
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  • 21
    Some stuff for use with Silverlight & WPF: Mostly related to MVVM and WCF RIA Services. This library is *not* being actively developed anymore. In my spare time, I'm still developing further on the WPF side, because of a project I started 2008/2010. But I rarely push my updates to this Lib.
    Downloads: 0 This Week
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  • 22
    Experimental MMORPG
    Downloads: 0 This Week
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  • 23
    Catharsis.NET.Commons

    Catharsis.NET.Commons

    Library of extensions for many common .NET types.

    Catharsis.NET.Commons is a library of extensions for many common .NET types. It can significantly speedup your daily .NET development tasks, relieving you of writing boilerplate code time and again. Do more by writing less code; write less code using a popular fluent-kind interface approach; safely perform many tasks in a single line of code with joined methods calls. This library is extensively unit-tested, greatly reducing the possibility of bugs and quirks. Purpose : Provide extension methods for common .NET types and common domain classes to simplify and speedup typical .NET business applications development process. Target : .NET Framework 3.5/3.5 Client Profile/4.0/Silverlight 5 NuGet package : https://www.nuget.org/packages/Catharsis.Commons
    Downloads: 0 This Week
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  • 24
    Catharsis.NET.Domain

    Catharsis.NET.Domain

    .NET library which provides commonly used types of domain entities.

    Catharsis.NET.Domain is a .NET library which provides commonly used types of domain entities (like Article,Blog, Comment, Download, Faq, etc.) to speed up development of domain layer in many typical business applications. This library includes the following: 1. Domain entity types, declared as partial classes (can be extended if necessary). 2. Set of common domain-related interfaces, like INameable and ITaggable. 3. Set of extension methods for IEnumerable/IQueryable sets of domain entities. The following types of domain entities are provided: Announcement/Announcements Category Art/Arts Album Article/Articles Category Audio/Audios Category Blog/Blog Entry City/Country/Location Comment Download/Downloads Category FAQ Notification Person Playcast/Playcasts Category Profile Setting Song/Songs Album Subscription Text/Texts Category Video/Videos Category Web Link/Web Links Category NuGet package : https://www.nuget.org/packages/Catharsis.Domain
    Downloads: 0 This Week
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  • 25
    Catharsis.NET.Repository

    Catharsis.NET.Repository

    .NET library that provides abstraction over persistent data storages.

    Catharsis.Repository .NET library provides abstraction over persistent data storages by introducing commonrepository pattern interfaces over popular ORM frameworks (NHibernate, Entity Framework, LINQ2SQL), as well as their implementations. Target : .NET Framework 4.0 NuGet package : https://www.nuget.org/packages/Catharsis.Repository The following ORM frameworks are supported at this time : 1. NHibernate 2. Entity Framework 6 (Database-First/Code-First approaches) 3. LINQ to SQL
    Downloads: 0 This Week
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