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.

DapperExtensions by: Thad Smith Page Brooks

A small library that complements Dapper by adding basic CRUD operations (Get, Insert, Update, Delete) for your POCOs. For more advanced querying scenarios, Dapper Extensions provides a predicate system.

DapperExtensions.DotnetCore by: DapperExtensions.DotnetCore

Dapper Extentsions for dotnet core

DeviceDetector.NET by: totpero

The Universal Device Detection library for .NET that parses User Agents and detects devices (desktop, tablet, mobile, tv, cars, console, etc.), clients (browsers, feed readers, media players, PIMs, ...), operating systems, brands and models. This is a port of the popular PHP device-detector library to C#. For the most part you can just follow the documentation for device-detector with no issue.

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

DotNetCore.NPOI by: NCC Savorboard

A .NET library for reading and writing Microsoft Office binary and OOXML file formats.

DynamicExpresso.Core by: Davide Icardi

C# expression interpreter/evaluator

EFCore.BulkExtensions by: borisdj

EntityFramework .Net EFCore EF Core Bulk Batch Extensions for Insert Update Delete Read (CRUD) operations on SQL Server, PostgreSQL, MySQL, SQLite

Elsa.Designer.Components.Web by: Elsa Contributors

Elsa is a set of workflow libraries and tools that enable lean and mean workflowing capabilities in any .NET Core application. This package provides ASP.NET Core component bindings for the Elsa Designer web component.

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

A collection of minimal binary files.

EntityFramework by: Microsoft

Entity Framework 6 (EF6) is a tried and tested object-relational mapper for .NET with many years of feature development and stabilization.

EntityFramework.DynamicFilters by: ZZZ Projects John Cachat

Provides global & scoped filters for Entity Framework with dynamic filter parameters that are evaluated at query execution. Supports use cases such as Multi-Tenancy and Soft Deletes.

EPPlus by: EPPlus Software AB

A spreadsheet library for .NET framework and .NET core

EPPlus.Core by: Vahid Nasiri

EPPlus.Core is an unofficial port of the EPPlus library to .NET Core.

Esprima by: Sebastien Ros

Standard-compliant ECMAScript 2016 parser (also popularly known as JavaScript or ES6).

ExcelDataReader by: ExcelDataReader developers

Lightweight and fast library written in C# for reading Microsoft Excel files (XLS, XLSX).

ExcelDataReader.DataSet by: ExcelDataReader developers

ExcelDataReader extension for reading Microsoft Excel files into System.Data.DataSet.

ExtendedNumerics.BigDecimal by: Adam White Jan Christoph Bernack Rick Harker

An arbitrary precision decimal (base 10) floating point number type using a mantissa and exponent. Supports nth roots, trigonometric functions, logarithms, natural e, pi, etc.

FastEndpoints by: FastEndpoints

A light-weight REST Api framework for ASP.Net 6 and newer that implements REPR (Request-Endpoint-Response) Pattern.

FastEndpoints.Swagger by: FastEndpoints

Swagger support for FastEndpoints.