Top 20 NuGet formatter Packages

This package includes a mostly complete port of the MessagePack(for more info see: https://github.com/neuecc/MessagePack-CSharp/) assembly to support .NET 4.5.1 and newer. These types can serialize by default: System.Delegate System.Type System.Globalization.CultureInfo System.Net.IPAddress System....
Phoesion Glow msgpack serializer
ASP.NET Core JSONP formatter, used for working with JSONP responses.
Infinitely fast serializer for .NET, .NET Core and Unity.
Currency Formatter (currency-formatter) binding library for Bridge.NET projects.
Checkstyle Formatter (checkstyle-formatter) binding library for Bridge.NET projects.
Power Assert Formatter (power-assert-formatter) binding library for Bridge.NET projects.
Utf8Json extensions for F#
This package includes a mostly complete port of the MessagePack(for more info see: https://github.com/neuecc/MessagePack-CSharp/) assembly to support .NET 4.5.1 and newer.
This package includes a mostly complete port of the MessagePack.ImmutableCollection(for more info see: https://github.com/neuecc/MessagePack-CSharp/) assembly to support .NET 4.5.1 and newer.
Definitely Fastest and Zero Allocation JSON Serializer for C#(NET, .NET Core, Unity, Xamarin).
Fast, flexible and high customizable XML formatter for Web API.
NXMLFormatter is an open-source XML Formatter and beautifier written with C#. The DLL is available as a .NET Standard 1.3.