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.

CSharpFunctionalExtensions by: Vladimir Khorikov

CSharpFunctionalExtensions - functional extensions for C#.

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.

Dapper by: Sam Saffron, Marc Gravell, Nick Craver

A high performance Micro-ORM supporting SQL Server, MySQL, Sqlite, SqlCE, Firebird etc..

Dapper.Contrib by: Sam Saffron, Johan Danforth

The official collection of get, insert, update and delete helpers for Dapper.net. Also handles lists of entities and optional "dirty" tracking of interface-based entities.

DartSassBuilder by: Johan van Rensburg, Dean Wiseman

Compile Sass files to css on project build.

Database by: Gil Sani

Create JSON based database on any device.

DBreeze by: Alex Solovyov / Ivars Sudmalis

DBreeze database key features: - Embedded .NET family assembly, platform independent and without references to other libraries. - Multi-threaded, ACID compliant, with a solution for deadlocks resolving/elimination, parallel reads and synchronized writes/reads. - No fixed scheme for table names (construction and access on the fly). - Tables can reside in mixed locations: different folders, hard drives, memory. - Liana-Trie indexing technology. Database indexes (keys) never need to be defragmented. Speed of insert/update/remove operations doesn't change during the time. - Ability to access Key/Value pair of a table by physical link, what can economize time for joining necessary data structures. - No limits for database size (except "long" size for each table and physical resources constraints). - Low memory and physical space consumption, also while random inserts and updates. Updates reside the same physical space, if possible. - High performance of CRUD operations. When you need, unleash DBreeze power and get 500000 key/value pairs insert or 260K updates per second per core into sorted table on the hard drive of standard PC. - High speed of random keys batch insert and updates (batch must be sorted in memory ascending and non-overwrite flag must be set). - Range selects / Traversing (Forward, Backward, From/To, Skip, StartsWith etc). Remove keys, change keys. - Keys and values, on the low level, are always byte arrays. - Max. key size is 65KB, max. value size is 2GB. Value can be represented as a set of columns, where can be stored data types of fixed or dynamic length. Every dynamic datablock can be of size 2GB. - Rich set of conversion functions from/to between byte[] and other data types. - Nested / Fractal tables which can reside inside of master tables values. - Incremental backup/restore option. - Integrated text-search subsystem (full-text/partial). - Integrated object database layer. - Fast multi-parameter search subsystem with powerful query possibilities. - DBreeze is a foundation for complex data storage solutions (graph/neuro, object, document, text search etc. data layers). Please, study documentation to understand all abilities of DBreeze. hhblaze@gmail.com

dbup by: Paul Stovell, Jim Burger, Jake Ginnivan, Damian Maclennan

This package exists to allow easy upgrades from pre-4.0 version This package was split into two packages dbup-core and dbup-sqlserver so that non SQL Server packages did not need to also reference the SQL Server code. Uninstall this package and install dbup-sqlserver, or the package for the server(s) you are targeting instead!

dbup-core by: Paul Stovell, Jim Burger, Jake Ginnivan, Damian Maclennan

DbUp makes it easy to deploy and upgrade SQL Server databases by running change scripts. This is the core library and should be used in conjunction with the database specific package (eg dbup-sqlserver, dbup-mysql)

dbup-sqlserver by: https://github.com/orgs/DbUp/people

DbUp makes it easy to deploy and upgrade Microsoft SQL Server databases. This package adds SqlServer support.

DeltaCompressionDotNet by: ta.speot.is

A managed wrapper around Microsoft's delta compression application programming interfaces.

deniszykov.WebSocketListener by: Valeriano Tortola, Denis Zykov

A lightweight and highly scalable asynchronous WebSocket listener for .NET Core, .NET and Mono. https://github.com/deniszykov/WebSocketListener

Destructurama.Attributed by: Serilog Contributors

Use attributes to control how complex types are logged to Serilog.

DiffEngine by: https://github.com/VerifyTests/DiffEngine/graphs/contributors

Launches diff tools based on file extensions. Designed to be consumed by snapshot testing libraries.

DiffPlex by: Matthew Manela

DiffPlex is a diffing library that allows you to programatically create text diffs. DiffPlex is a fast and tested library.

DnsClient by: MichaCo

DnsClient.NET is a simple yet very powerful and high performance open source library for the .NET Framework to do DNS lookups

Docker.DotNet by: Docker.DotNet

Docker.DotNet is a library that allows you to interact with the Docker Remote API programmatically with fully asynchronous, non-blocking and object-oriented code in your .NET applications.