Compare Documents Online

Online diff tool to compare two documents from any device, with a modern browser like Chrome, Opera and Firefox.

Source Document
Please drop or upload your file

Target Document
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We have already processed 9,772 files with the total size of 11,185 MB

Free Document Conversion, Viewer, Merger app for Windows

Easily convert, view or merge unlimited files on your own Windows PC.
Process Word, Excel, PowerPoint, PDF and more than 100 file formats.
No limit on file size.
Batch conversion of multiple files.
One app with rich features like Conversion, Viewer, Merger, Parser, Comparison, Signature.
Regular FREE updates with new features coming every month.

Free Download

Discover GroupDocs.Comparison free online app!

Compare PDF, DOCX, XLSX, PPTX, VSDX, HTML, EPUB, RTF, XPS, ODT, ODP, and many more document formats (see supported formats list)
Compare files from anywhere - it works on all platforms including Windows, MacOS, Android and iOS.
All files are processed on our servers so no additional plugins or software installation is required.
Power of GroupDocs.Comparison document comparing API

DWG AutoCAD Drawing Database File

Files with DWG extension represent proprietary binary files used for containing 2D and 3D design data. Like DXF, which are ASCII files, DWG represents the binary file format for CAD (Computer Aided Design) drawings. It contains a vector image and metadata for the representation of the contents of CAD files.

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How to compare, view & download changes of a document using GroupDocs Comparison App

Click inside the file drop area of source & target files to upload files or drag & drop files.
Click "Compare Now" button to compare / view / download changes instantly.
View list of changes in a panel.
View and navigate between pages.
Download a file with comparison results.

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GroupDocs.Comparison for .NET API

Powerful document comparison.Net library & API.

Build your own solutions with document comparison functionality using our.NET library.

More Platforms

GroupDocs.Comparison for Java

Java version of GroupDocs.Comparison library & API.

Compare your documents using our Java library.

GroupDocs.Comparison Cloud

Easy to use cross-platform Cloud solution.

Or use our Cloud API to integrate document comparison functionality on your solutions

Open-Source UI/UX Solutions

GroupDocs.Comparison for .NET and Java

Integrate document comparison in your apps using our out-of-the-box open-source front-end solutions based on Angular and GroupDocs.Comparison for .Net/Java.

UI / UX solutions can be run as standalone application or can be integrated in any.Net / Java application, download and build your comparison solution within few clicks!

GroupDocs.Total for .Net and Java

GroupDocs.Total is an open - source UI / UX solution where all GroupDocs products are working together as one.

GroupDocs.Total provides multiple high quality features against over 120 document formats, such as conversion, signature, parser and much more!

GroupDocs.Total for .NET MVC Example
GroupDocs.Total for .NET WebForms
GroupDocs.Total for Java Dropwizard (Coming Soon)
GroupDocs.Total for Java Spring (Coming Soon)