Top 20 NuGet compare Packages

What you have been waiting for. Perform a deep compare of any two .NET objects using reflection. Shows the differences between the two objects.
A CSharp library that allows you to diff two objects and get a list of the differences back.
Add deep object comparison to your NUnit assertions. Simply use Is.DeepEqualTo in place of Is.EqualTo.
An extensible deep comparison library for .NET
Simple Object Comparer that generates a Diff between objects and is able to Patch one object to transforms into the other. Uses Newtonsoft Json.Net for Diff and Patch. Note: this nuget package contains C# source code and depends on .Net 4.0.
Framework provides mechanism to compare classes, allows override comparison rules for specific properties and types.
GroupDocs.Comparison for .NET is a lightweight library which allows you to merge and compare two versions of a PDF or Office document and display differences between them. GroupDocs.Comparison is a one-stop solution for comparing documents of all common formats. It can be used to generate diff...
Finds the differences between two xml files.
Provides a complete diffing model of HTML.
Provides dynamic datatype conversion functions and a high performing alternative to the `object`type when dealing with data types that are unknown at compile time.
This library allows comparing objects and provide distinctions. What is more, this tool can set compare strategy for certain properties or fields and types
This tool will be used to compare two security roles from same instance or from different instances
Efficient Processing, Compilation, and Execution of Expression Trees at Runtime
Client library for the Draftable document comparison API
Library to compare two entity object graphs detecting changes
VisioForge Video Fingerprinting SDK package. Samples - https://github.com/visioforge/video-fingerprinting .
Package Description
Compares members of two objects and evaluates if they are equal or none equal based on conventions (public properties with the same names and same/derived/convertible types). Provides also few tweak options
Document Compare REST APIs for Any Platform. Boost your document compare process to compare over 50 document and image formats in any application, using our native document comparison APIs for cloud.
Compares Images and calculates mean error, absolute error and diff image. Supports optional tolerance mask/images to ignore areas of an image. Use this for automated visual comparing in your unit tests.