Top 20 NuGet portable Packages

PoolSharp is a simple, light weight, thread safe object pool.
Unified Maps provides a Xamarin.Forms map control for iOS and Android apps. It is designed to be a near drop in replacement for the Xamarin.Forms.Maps package but with enhanced functionality.
Redbridge SDK portable client SDK library for iOS
Provide to the Pipe system, all needed element to communicate by network.
Stop writing monolithic applications that make you feel like you have to move mountains to make the simplest of changes. Ninject helps you use the technique of dependency injection to break your applications into loosely-coupled, highly-cohesive components, and then glue them back together in a flex...
KBCsv is an efficient, easy to use .NET parsing and writing library for the CSV (comma-separated values) format, delivered as a netstandard 1.0 library. Online at https://github.com/kentcb/KBCsv.
SgmlReader for Portable Library. SgmlReader is "SGML" markup language parser, and derived from System.Xml.XmlReader in .NET CLR. But, most popular usage the "HTML" parser. (It's scraper!!) /* Use SgmlReader in Html parse mode. */ XDocument document = SgmlReader.Parse(stream); Done!
Obsolete! Use https://www.nuget.org/packages/MrAdvice/ instead! MrAdvice allows to weave aspects at build-time (just like PostSharp, but free as in free beer). Write your own aspects in the form of attributes and apply them to target methods or properties.
Provides platform independent drawing extensions which operate on native .NET arrays.
Portable HAL client for .NET wrapped in a CSharp friendly wrapper
Google Drive file system for the portable FTP server
Provides generally useful extensions to KBCsv as a Portable Class Library. Online at https://github.com/kentcb/KBCsv.
C# Websockets for all platforms using native bridges.
Rox Camera for Xamarin.Forms enables access to the device camera for image acquisition. Targets .NetStandard2.0 and supports Android, iOS, and UWP platforms.
An easy-to-use, portable, tested, documented, serializable, thread-safe, strongly typed library for changing between unrestricted, arbitrary data types
You probably want Spooky.Json20, not this package. Spooky is a client RPC library for .Net, providing an abstraction layer for RPC calls (using sytems such as Json RPC).
Redbridge Xamarin Forms MVVM portable client SDK library for Android
Portable content pipleline library for game development. Part of TOE: Tiny Open Engine.
Portable content pipleline library for game development. Part of TOE: Tiny Open Engine.
Portable content pipleline library for game development. Part of TOE: Tiny Open Engine.