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

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  • 1
    Application Management
    Application Management makes your application life easier. Automatic do memory management, handle and log unhandled exceptions, profiling your functions, make your application single instance and also provide util functions to get system information.
    Downloads: 0 This Week
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  • 2
    Async MySQL Connector .NET and .NET Core

    Async MySQL Connector .NET and .NET Core

    Async MySQL Connector for .NET and .NET Core

    This is an ADO.NET data provider for MySQL. It provides implementations of DbConnection, DbCommand, DbDataReader, DbTransaction, the classes needed to query and update databases from managed code. This library implements true asynchronous I/O for database operations, without blocking (or using Task.Run to run synchronous methods on a background thread). This greatly improves the throughput of a web server that performs database operations. This library outperforms MySQL Connector/NET (MySql.Data) on benchmarks. This library is MIT-licensed and may be freely distributed with commercial software. Commercial software that uses Connector/NET may have to purchase a commercial license from Oracle. Fixes dozens of open bugs in Oracle’s Connector/NET; passes all ADO.NET Specification Tests. First MySQL library to support .NET Core; uses the latest .NET features.
    Downloads: 0 This Week
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  • 3
    Asynchronous data access layer for .NET.
    Downloads: 0 This Week
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  • 4
    Downloads: 0 This Week
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  • 5
    Basic Computer Games

    Basic Computer Games

    An updated version of the classic "Basic Computer Games" book

    Basic Computer Games is a modern revitalization of the classic “Basic Computer Games” book’s collection of games, ported and expanded into various modern, memory-safe and scripting languages. It includes illustrative code examples of many classic games (e.g. Blackjack, Bowling) in multiple languages, with the goal of making the historical games accessible and educational in safe modern environments. Definitely use the most recent versions and features of the target language, but also try to keep the code samples simple and explainable – the goal is to teach programming in the target language, not necessarily demonstrate the cleverest one-line tricks, or big system "enterprise" coding techniques designed for thousands of lines of code.
    Downloads: 0 This Week
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  • 6
    BenchmarkDotNet

    BenchmarkDotNet

    Powerful .NET library for benchmarking

    BenchmarkDotNet is a powerful .NET library designed for creating accurate and reproducible benchmarks. It handles complexities like warm-up, outlier removal, and statistical analysis, presenting results in a clean, customizable summary format. BenchmarkDotNet has tons of features that are essential in comprehensive performance investigations. Four aspects define the design of these features: simplicity, automation, reliability, and friendliness. A lot of hand-written benchmarks produce wrong numbers that lead to incorrect business decisions. BenchmarkDotNet protects you from most of the benchmarking pitfalls and allows you to achieve high measurement precision.
    Downloads: 0 This Week
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  • 7
    .Net extension methods, attributes and tools to make you more productive. Write less code, write less bugs.
    Downloads: 0 This Week
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  • 8
    BezierSignature
    A simple .NET signature box for handheld application. Usage of bezier curves makes the resulting signature look more like the pen and paper version.
    Downloads: 0 This Week
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  • 9
    A dynamic .NET library to operate on really big Integers. Supports all native c# Integer operators and some mathematical functions.
    Downloads: 0 This Week
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  • 10
    BikiSoft contains the windows software and atmel firmware for the BikiRom Mega-board product line. The bikirom boards are used to re-tune 1990-2002 Nissan SR20 based ECUs and ER34 ECUs. The hardware is available seperately.
    Downloads: 0 This Week
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  • 11
    THIS PROJECT HAS NOW MOVED TO GITHUB: https://github.com/arenhag/BizUnitCompare BizUnitCompare enables you to easily compare the actual result of your integrations with an expected result. It differs from the XPathValidationStep in that it allows you to define what to exclude rather than have to define everything to include.
    Downloads: 0 This Week
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  • 12
    BlueCsv
    Blue Csv es una libreria para la lectura y escritura de archivos CSV para .NET y java. descargar dll o jar segun el caso. Es liviana, potente y bien documentada por lo tanto facil de implementar para cualquier otro lenguaje.
    Downloads: 0 This Week
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  • 13
    BooruSharp

    BooruSharp

    A C# library to browse Booru websites

    BooruSharp is a C# library designed to simplify interaction with booru-style imageboard websites by providing a unified API for retrieving and managing image data across multiple platforms. It abstracts the differences between various booru implementations such as Danbooru, Gelbooru, and others, allowing developers to query posts, tags, and metadata without needing to handle site-specific logic. The library is distributed via NuGet and integrates seamlessly into .NET applications, making it particularly useful for developers building image browsers, bots, or automation tools. It supports a wide range of booru endpoints and exposes structured methods for accessing posts by ID, tags, or hashes, as well as retrieving random images and metadata. Additionally, BooruSharp includes support for related APIs such as comments, favorites, and tag autocomplete, depending on the target site.
    Downloads: 0 This Week
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  • 14
    Box.NET API is an easy to use C#.NET library for interfacing with the box.net web api. Allowing you to upload & download files. Create folders and other box.net functionality.
    Downloads: 0 This Week
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  • 15

    Braille Espresso For C#

    This is a library written for Braille translation.

    This library is designed to promote the importance of Braille while hiding learning concepts from developers. This is designed so that the developer only has to know that Braille is one more language without thinking of the rules or even knowing the system itself. The hope is to convince developers to apply Braille translation technology to web, GUI or any other application. Only a few lines of code are required.
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  • 16
    This is simply a set of classes used to deserialize Collada files(core, fx, phys, b-rep, and kinematics). Should be more useful than classes created by the xsd.exe tool.
    Downloads: 0 This Week
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  • 17
    C# Algorithms

    C# Algorithms

    Plug-and-play class-library project of standard data structures

    A plug-and-play class-library project of standard Data Structures and Algorithms, written in C#. It contains 75+ Data Structures and Algorithms, designed as Object-Oriented isolated components. Even though this project started for educational purposes, the implemented Data Structures and Algorithms are standard, efficient, stable and tested. This is a C#.NET solution-project, and it contains three subprojects. Algorithms, a class library project which contains the Algorithms implementations. Data Structures, a class library project which contains the Data Structures implementations. Also, UnitTest, a unit-testing project for the Algorithms and Data Structures.
    Downloads: 0 This Week
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  • 18
    A C# implementation of the Smart Space Access Protocol to access Smart-M3 (http://sourceforge.net/projects/smart-m3/). Hosted by the University of Bologna and under development within the ARTEMIS SOFIA project (http://www.sofia-project.eu/)
    Downloads: 0 This Week
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  • 19
    C# SNMP Library

    C# SNMP Library

    C# SNMP Library (#SNMP) - Open source SNMP implementation for C#

    SharpSnmpLib is an open-source SNMP library for C# and .NET applications. It helps developers add Simple Network Management Protocol functionality without building the protocol layer from scratch. The project supports SNMP v1, v2c, and v3, making it useful for a wide range of network management scenarios. It can be used to build both SNMP managers and agents. Its asynchronous operations help applications stay responsive while handling network communication. The library is also designed to be extensible, so teams can adapt it to specialized monitoring, discovery, and device management needs.
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  • 20

    CCM (C# Collections Mapper)

    The CCM is a mini ORM, working with the database and C# collections

    CCM is a solution for the data management layer in the combination of Sql Server with a C # application. In whole this is a strongly typed entity mapper projecting the application's business logics onto database tables using T-SQL stored procedures. CCM allows you to implement fairly complex data structures in your application, without bothering about difficult and tedious questions of data acquisition and conversion issue, allowing you to pay more attention to the develop of business logic and UI. There no need to worry about migrations, context, etc. At the same time, ORM completely relieves the developer from direct communicating with ADO - datasets, tables, rows, and other data aceess component, to track connections, commands or operate with adapters because ORM works at a higher level of data abstraction. At the same time you will be completely protected from memory leaks and free to create complexity application logic at the primary data level.
    Downloads: 0 This Week
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  • 21
    C# Implementation of the Consumer Product Safety Recalls Database API. This application allows you to search the US. Recalls Database. The VS2010 source is separated into two projects. A dll / SDK is included to add this functionality in any .Net App
    Downloads: 0 This Week
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  • 22
    CQL

    CQL

    an all new query language and a sequel to SQL

    The project was developed for C/C++ programmers who are not familiar with SQL syntax.
    Downloads: 0 This Week
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  • 23
    CSChessControls contains chess controls for Windows Forms Application. Source code is open and free to use. Developed in C#.Avaliable controls are ; ChessBoard , CapturedPiecesControl, ChessTimer, FischerTimer
    Downloads: 0 This Week
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  • 24
    CSharp MARC

    CSharp MARC

    Full featured editor for reading and manipulating MARC Records

    *** THIS PROJECT HAS MOVED TO GITHUB *** https://github.com/frozen-solid/CSharp_MARC/ ********************************************************** C# MARC: C# class structures for reading and manipulating Library of Congress MARC records using the MARC21 standard. Based upon the PHP Pear package File_MARC (http://pear.php.net/package/File_MARC) by Dan Scott. C# MARC Editor: A full featured SQLite based editor for quickly modifying MARC records and exporting them to MARC21 or MARCXML.
    Downloads: 0 This Week
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  • 25
    CSharpWriter

    CSharpWriter

    A C# Control use to edit RTF can replace RichTextBox.

    CSharpWriter(short name CSWriter) is a new RTF style document process engine without RichTextBox control. it is more powerfull than RichTextBox.We holpe it can replace OpenOffice in .NET World.
    Downloads: 0 This Week
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