Top 20 NuGet utilities Packages

Common interfaces for contracts
Database tools for interacting between .NET and Databases.
Supports rapid development and deployment of services.
A collection of .Net utilities for Json
LinksPlatform's Platform.Helpers Class Library
A collection of .Net utilities for Xml
Ultimate.Utilities provides the utility functions for strings, collections, objects. It has StringUtils, CollectionUtils, ObjectUtils and CommonUtils. These classes provide you with a large number of helper functions that can help you code much better. And the best thing is it is available for .Net ...
Craig's Utility Library is one of the largest collections of utility classes and extension methods for .Net. It includes code to help with tasks including encryption, compression, serialization, file management, email, image manipulation, Active Directory, Exchange, SQL, various file formats (CSV, i...
Craig's Utility Library is one of the largest collections of utility classes and extension methods for .Net. It includes code to help with tasks including encryption, compression, serialization, file management, email, image manipulation, Active Directory, Exchange, SQL, various file formats (CSV, i...
Craig's Utility Library is one of the largest collections of utility classes and extension methods for .Net. It includes code to help with tasks including encryption, compression, serialization, file management, email, image manipulation, SQL, various file formats (CSV, iCal, etc.), randomization, v...
Many utilities like: enumeration, hash, json (extension newtonsoft)m regexm signature, string, uri, etc
A library of interfaces, extension methods, and small bits of functionality that are useful in almost any software project, according to the theme "things that should be built into the .NET framework, but aren’t". At least half of Loyc.Essentials is devoted to collections: collection interf...
A kit filled with things Dylan finds useful for building things.
Craig's Utility Library is one of the largest collections of utility classes and extension methods for .Net. It includes code to help with tasks including encryption, compression, serialization, file management, email, image manipulation, SQL, various file formats (CSV, iCal, etc.), randomization, v...
Test base class and utility methods.
Network utilities.
Kode-Aid shared configuration library.
Set of tools to help Single Page Application development
Common google api authentication classes for .NET applications
A collection of .Net utilities for System.Net