CommunityToolkit.WinUI.Notifications by: Microsoft.Toolkit dotnetfoundation

The official way to send toast notifications on Windows 10 via code rather than XML, with the help of IntelliSense. Supports all C# app types, including WPF, UWP, WinForms, and Console, even without packaging your app as MSIX. Also supports C++ UWP apps. Additionally, generate notification payloads from your ASP.NET web server to send as push notifications, or generate notification payloads from class libraries. For UWP/MSIX apps, you can also generate tile and badge notifications.

ConfigureAwait.Fody by: Cameron MacFarland Simon Cropp

Configure async code's ConfigureAwait at a global level.

Confluent.Kafka by: Confluent Inc. Andreas Heider

Confluent's .NET Client for Apache Kafka

Consul by: PlayFab G-Research

Consul.NET is a .NET client library for the Consul HTTP API

Coravel by: James Hickey

Near-zero config .NET Core library that makes Task Scheduling, Caching, Queuing, Mailing, Event Broadcasting (and more) a breeze!

Coravel.Razor by: James Hickey

Razor views etc. required by Coravel

CoreCompat.System.Drawing by: CoreCompat.System.Drawing

CoreCompat.System.Drawing

Costura.Fody by: geertvanhorrik simoncropp

Fody add-in for embedding references as resources.

Couchbase by: Couchbase Inc.

The Official On-Premise Couchbase .NET SDK.

CouchbaseNetClient by: Couchbase Inc.

The Official Couchbase .NET SDK.

coverlet.collector by: tonerdo

Coverlet is a cross platform code coverage library for .NET, with support for line, branch and method coverage.

coverlet.msbuild by: tonerdo

Coverlet is a cross platform code coverage library for .NET, with support for line, branch and method coverage.

CronExpressionDescriptor by: Brady Holt

A library that converts cron expressions into human readable descriptions. Supports multiple languages including: English, Brazillian, Spanish, Norwgian, Turkish, Dutch, Chinese Simplified, Russian, French, German, Ukrainian, Persian (Farsi), Polish, Romanian, Italian, Swedish, Slovenian, Danish, Finnish, Greek, Kazakh and Japanese.

CryptoHelper by: Henk Mollema

Standalone password hasher for ASP.NET Core using a PBKDF2 implementation.

CryptoHelper.StrongName by: Henk Mollema

DEPRECATED - The 'CryptoHelper' is now strong named by default.

CrystalDecisions.Shared by: zqb971

CrystalDecisions.Shared

CsvHelper by: Josh Close

A library for reading and writing CSV files. Extremely fast, flexible, and easy to use. Supports reading and writing of custom class objects.

Cucumber.CucumberExpressions by: Cucumber Ltd Gaspar Nagy

Cucumber Expressions implementation for .NET.

Cucumber.Messages by: Cucumber Ltd TechTalk

JSON schema-based messages for Cucumber's inter-process communication

Dapper by: Sam Saffron Marc Gravell Nick Craver

A high performance Micro-ORM supporting SQL Server, MySQL, Sqlite, SqlCE, Firebird etc. Major Sponsor: Dapper Plus from ZZZ Projects.