CommonServiceLocator by: .NET Foundation and Contributors

The library provides an abstraction over IoC containers and service locators. Using the library allows an application to indirectly access the capabilities without relying on hard references.

CommunityToolkit.HighPerformance by: Microsoft

This package includes high performance .NET helpers such as: - Memory2D<T> and Span2D<T>: two types providing fast and allocation-free abstraction over 2D memory areas. - ArrayPoolBufferWriter<T>: an IBufferWriter<T> implementation using pooled arrays, which also supports IMemoryOwner<T>. - MemoryBufferWriter<T>: an IBufferWriter<T>: implementation that can wrap external Memory<T>: instances. - MemoryOwner<T>: an IMemoryOwner<T> implementation with an embedded length and a fast Span<T> accessor. - SpanOwner<T>: a stack-only type with the ability to rent a buffer of a specified length and getting a Span<T> from it. - StringPool: a configurable pool for string instances that be used to minimize allocations when creating multiple strings from char buffers. - String, array, Memory<T>, Span<T> extensions and more, all focused on high performance. - HashCode<T>: a SIMD-enabled extension of HashCode to quickly process sequences of values. - BitHelper: a class with helper methods to perform bit operations on numeric types. - ParallelHelper: helpers to work with parallel code in a highly optimized manner. - Box<T>: a type mapping boxed value types and exposing some utility and high performance methods. - Ref<T>: a stack-only struct that can store a reference to a value of a specified type. - NullableRef<T>: a stack-only struct similar to Ref<T>, which also supports nullable references.

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

Confluent.SchemaRegistry by: Confluent Inc.

A .NET Client for Confluent Schema Registry

Confluent.SchemaRegistry.Serdes.Avro by: Confluent Inc.

Provides an Avro Serializer and Deserializer for use with Confluent.Kafka with Confluent Schema Registry integration

ConsoleControl by: Dave Kerr

The ConsoleControl is a WinForms control that you can drop into a Form to run an external process in a C# application.

ControlzEx by: Jan Karger, Bastian Schmidt, James Willock

ControlzEx is a library with some shared Controls for WPF.

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

CoreCompat.System.Drawing

CoreProfiler by: teddy.ma

CoreProfiler - A .NET Core Profiling Library

CoreProfiler.Web by: teddy.ma

CoreProfiler.Web - A .NET Core Profiling Library

Costasdev.Uuidv7 by: Ariel Costas Guerrero

UUIDv7 implementation for .NET, based on RFC 9562.

Costura.Fody by: geertvanhorrik, simoncropp

Fody add-in for embedding references as resources.

coverlet.collector by: tonerdo

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

Crc32.NET by: force

Fast version of Crc32 & Crc32C algorithms for .NET and .NET Core. It is up to 3x-5x times better than other "fast" implemenations. Code based on Crc32C.NET library.

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, Kyrgyz and Japanese.

Cronos by: Andrey Dorokhov, Sergey Odinokov

A fully-featured .NET library for parsing cron expressions and calculating next occurrences that was designed with time zones in mind and correctly handles daylight saving time transitions.

CronScheduler.AspNetCore by: kdcllc

A lightweight Cron-based Scheduler for AspNetCore applications, designed for Kubernetes/Docker environments. An efficient alternative to Quartz Scheduler and HangFire.

CronScheduler.Extensions by: kdcllc

A powerful Cron-based Scheduler for .NET Core applications, optimized for Kubernetes/Docker and Windows Services. A lightweight alternative to Quartz Scheduler and HangFire.

CSharpFunctionalExtensions by: Vladimir Khorikov

CSharpFunctionalExtensions - functional extensions for C#