Original document

or drag it in this box

Changed document

or drag it in this box

By uploading your files or using our service you agree with our Terms of Service and Privacy Policy.

Comparing is the act of evaluating CAD files by finding the relevant, comparable characteristics of each element, and then determining similarity of characteristics to each other. Diff checker tools are used for many reasons, when one wishes to compare text files other one wishes to compare CAD files, a visual comparison is usually the best. This gives you the opportunity to see which elements are changed, if the files should be merged to create one containing all the differences — GroupDocs.Comparison is the best.

If you need to find similarities in your CAD documents that you cannot compare manually because the files are very large, and you want to see all the smallest differences so, then the Comparison is what you need. This online diff checker tool will let you know about all the changes between CAD files because the difference checker compares all elements of your files and displays the result in a few seconds.

GroupDocs.Comparison is a powerful software which allows you to see the difference of CAD files by highlighting changes with red (deleted) and green (added) colors. Also, our diff checker can detect even changes of styles in your CAD file and highlight it with bright yellow color. Compare your documents free on any OS and platform using just your browser. All the computational operations are done at our side.

Check our video

How it works

How to diff check document

Step 1

Click inside the file drop area to upload document file or drag & drop a file

Step 2

View list of changes in a panel and navigate between pages.

Step 3

Download a file with comparison results.

FAQ

Questions & Answers

Is GroupDocs Comparison app free?

Our comparison app is absolutely free. Feel free to use it as much as you want.
What document formats can I diff check?

We support more than 30 modern documents formats. So you can compare text, images, PDFs, Microsoft Word, Excel, PowerPoint, Visio Diagram etc. Full list can be found here.
How can I diff check a document?

First, you need to upload a file: drag & drop your file or click inside the white area to choose a file.Then you will be redirected to the comparison application.
Is it safe to diff check files using free GroupDocs Comparison App?

Of course! The preview files will be available instantly after the file uploaded. We will delete the uploaded file after 24 hours.
Can I diff check documents on Linux, Mac OS, iOS, or Android?

Definitely yes, you can! Our diff checker works online and does not require any installation of any software other than a web browser.
What browser should I use to diff check documents?

You can use any modern browser to diff check documents, for example, Google Chrome, Microsoft Edge, Firefox, Opera, or Safari.

More apps

Diff Checker CAD files

Diff tool that allows you to compare files from any device. 100% free online!

About Comparison app

How to diff check document

Questions & Answers

Diff Checker CAD files

Diff tool that allows you to compare files from any device. 100% free online!

About Comparison app

How to diff check document

Questions & Answers

APIs available

GroupDocs online applications

Select a language