OurPDF

Compare PDFs

View two PDF files side-by-side for easy comparison.

Runs in your browser · files never leave your device

How to use Compare PDFs

  1. 1

    Choose the original and the changed PDF.

  2. 2

    Adjust the options – the defaults work for most files.

  3. 3

    Read the result on screen or download it.

  • 100% in your browser – no upload
  • Free, no sign-up, no watermark
  • Works offline once loaded
  • Part of 67 private PDF tools

Questions & answers

Is Compare PDFs free?

Yes, completely free with no limits on the number of files and no watermark.

Are my files uploaded to a server?

No. Everything runs in your browser on your own device. Your documents are processed locally and never leave your computer or phone.

Does Compare PDFs work on mobile?

Yes. It works in any modern browser on Android, iPhone, Windows, macOS and Linux. AI Tools tools also work offline after your first visit.

View two PDF files side-by-side for easy comparison. OurPDF does this entirely inside your browser: nothing is uploaded, there is no account and no watermark.