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..

DeepCloner by: force

Small Library for fast deep or shallow cloning .NET objects. It allows to copy everything and has a lot of performance tricks for fast copying.

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

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

DistributedLock.Core by: Michael Adelson

Core interfaces and utilities that support the DistributedLock.* family of packages

DistributedLock.FileSystem by: Michael Adelson

Provides a distributed lock implementation based on file locks

DistributedLock.Redis by: Michael Adelson

Provides distributed locking primitives based on Redis

DocumentFormat.OpenXml by: Microsoft

The Open XML SDK provides tools for working with Office Word, Excel, and PowerPoint documents. It supports scenarios such as: - High-performance generation of word-processing documents, spreadsheets, and presentations. - Populating content in Word files from an XML data source. - Splitting up (shredding) a Word or PowerPoint file into multiple files, and combining multiple Word/PowerPoint files into a single file. - Extraction of data from Excel documents. - Searching and replacing content in Word/PowerPoint using regular expressions. - Updating cached data and embedded spreadsheets for charts in Word/PowerPoint. - Document modification, such as removing tracked revisions or removing unacceptable content from documents.

DocumentFormat.OpenXml.Framework by: Microsoft

The Open XML SDK provides tools for working with Office Word, Excel, and PowerPoint documents. It supports scenarios such as: - High-performance generation of word-processing documents, spreadsheets, and presentations. - Populating content in Word files from an XML data source. - Splitting up (shredding) a Word or PowerPoint file into multiple files, and combining multiple Word/PowerPoint files into a single file. - Extraction of data from Excel documents. - Searching and replacing content in Word/PowerPoint using regular expressions. - Updating cached data and embedded spreadsheets for charts in Word/PowerPoint. - Document modification, such as removing tracked revisions or removing unacceptable content from documents.

DynamicExpresso.Core by: Davide Icardi

C# expression interpreter/evaluator

Elasticsearch.Net by: Elastic and contributors

Exposes all the Elasticsearch API endpoints but leaves you in control of building the request and response bodies. Comes with built in cluster failover/connection pooling support.

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

A collection of minimal binary files.

Excubo.Analyzers.Annotations by: Stefan Lörwald

Contains attributes used by the Excubo.Analyzers

Excubo.Blazor.LazyStyleSheet by: Stefan Lörwald

Excubo.Blazor.LazyStyleSheet makes it easy to dynamically load style sheets in razor components. This improves page load times and reduces the amount of data transferred over the network.

Excubo.Blazor.TreeViews by: Stefan Lörwald

Excubo.Blazor.TreeViews is a Blazor component library for tree views.

Excubo.Generators.Blazor by: Stefan Lörwald

Source Generator for Blazor

FakeItEasy by: Patrik Hägne FakeItEasy contributors

It's faking amazing! The easy mocking library for .NET that works great in C# and VB.NET alike. No need to know the difference between a stub, a mock or a spy, everything's a fake! The easy to use, refactoring friendly API makes faking a breeze.

FluentValidation by: Jeremy Skinner

A validation library for .NET that uses a fluent interface to construct strongly-typed validation rules.

Fody by: Fody

Extensible tool for weaving .net assemblies.

Fractions by: Daniel Mueller

The fraction data type consists of two BigInteger values for numerator and denominator. It implements various operations (addition, subtraction, multiplication, division and remainder) with operator overloads.