Top 20 NuGet object Packages

This package can determine relation among entities
Provides identity extension methods on top of Qwiq.Client.Soap
Provides Quick Work Item Queries to Team Foundation Server and Visual Studio Online
Provides Quick Work Item Queries to Team Foundation Server and Visual Studio Online via SOAP APIs
UltraMapper is a .NET object-mapper. It can be useful to deep-copy an object, or transform (map) an object of a certain type to another.
Configuration-less object-relational mapper for SQL Server and SQL Server CE
ACID Compliant Object Database for WinRT and Windows Phone 8. Features include LINQ index queries, lazy loading, paging, transactions, constraints, triggers, caching, BLOB, CLOB, Import XML, Export XML, Auto Identity Primary Keys, foreign key relationships, AES encryption, and MiniLZO compression.
ACID Compliant Object Database for .NET, Mono, Xamarin MonoDroid, MonoTouch, Silverlight and Windows Phone 7. Features include LINQ index queries, lazy loading, paging, transactions, constraints, triggers, caching, BLOB, CLOB, Auto Identity Primary Keys, foreign key relationships, AES encryption, an...
The class4js module is for class-driven development in JavaScript. It allows to emulate classes in JavaScript. Module is based on ECMAScript 5 standart and implements open/close principle: "A module should be open for extension but closed for modifications".
See project site for more details https://github.com/derfsplat/differ
A useful set of classes for building an ITypeSource
A simple, lightweight, Nano-ORM for .NET
Enables rapid mailing, error mailing, entity to string or send email, send multiple list items to email, auto map one entity to another by casting, hashing and many more. It solve all regular MVC required functionalities like sending emails, caching, cookies handling, track errors with email, sessio...
An extension for determining whether or not an object is nullable
An extension for representing an object's public instance property values as a series of values in alphabetical order of the property names
An extension for determining whether or not an object can be repsresented as a string
A highly optimized, C# object relational database for .NET 4.6, Xamarin Android, Xamarin iOS, Windows 8.1, Windows Phone 8.1 and Windows 10 (UWP)
PoolSharp is a simple, light weight, thread safe object pool.
Idea.Query.EntityFrameworkCore Class Library
Obujekutoru is a managed in-process object store engine exposing a simple programming interface. Obujekutoru has a very small footprint and the data encryption feature makes it suitable for mobile development of managed applications.