Top 20 NuGet serialization Packages

UniversalSerializer is a free open-source advanced serializer for .NET and .NET Core.
The specific libraries for Windows Forms. This package does not need the main UniversalSerializer package.
A significant abstraction over integrating any relational database into a .NET application, to the point of query-free interactions where tables are merely classes.
Library for validating that .NET types are serializable and deserialize with System.Runtime.Serialization.
A lightweight message routing library supporting various messaging frameworks and serialization formats.
The Connection-Based Asynchronous Messaging (CBAM) NATS assembly contains API (but not implementation) for NATS ( https://nats.io/ ) messaging protocol.
Service bus body serialization library. For usage please see readme.md in the repository.
SpanJson extensions for F#
Yaml serializer for use with LazyData
Json serializer for use with LazyData
Bson serializer for use with LazyData
FlatSharp is an idiomatic C# implementation of the FlatBuffer serialization format. Use attributes to declare your data contracts!
service fabric serialization provider
A DataContract implmentations for RockLib.Serialization.
This is a modification of SharpSerializer to allow the deserialization of objects with private parameterless constructors and no public ones. SharpSerializer is an open source XML and binary serializer for .NET. With only one line of code it can serialize types like: multidimensional array, ...
RedCorners brings some neat utilities to your C# projects.
Custom editor that draws any lists/arrays in Unity Inspector as re-orderable by default.