Often you need to compare two MS Word DOC/DOCX files to see changes. While many online document comparison tools exist, you may want to embed this feature in your own web app or build a custom solution. In this guide, I’ll show how to compare two Word DOCX files using C# in an ASP.NET application. The app includes:
- C# .NET API to Compare Word DOCX Documents
- Compare two Word (DOC/DOCX) documents in C#
- Download the comparison result in DOCX format
- Download the comparison result in PDF format
C# .NET API to Compare Word DOCX
We use Aspose.Words for .NET, a robust word‑processing API that works without MS Office. Install it via NuGet or download it directly.
PM> Install-Package Aspose.Words
Compare Two Word Documents in C# ASP.NET
- Create a new ASP.NET Core Web Application in Visual Studio 2017 or later.
- Choose the Web Application (Model-View-Controller) template.
- Install the Aspose.Words for .NET package using NuGet Package Manager.
- Copy and paste the following script in index.cshtml view.
- Copy and paste the following method in HomeController.cs controller.
- Insert the following CSS and JS files of drag and drop plugin in the head tag of _layout.cshtml view.
- Build the application and run in the browser.
C# ASP.NET Word DOCX Comparison App - Demo
The following is the demonstration of how to compare two Word documents using our C# ASP.NET document comparison application.
Comparing Word DOCX in ASP.NET
Download C# ASP.NET DOCX Comparison Application
You may download the complete source code of ASP.NET Word document comparison application from here.
About Aspose.Words for .NET
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