RoseLab is the free online tool to compare two PDFs side by side with synchronized scrolling. Find differences between contracts, reports, blueprints, proposals and bids — all processed in your browser, without sending files to any server.
No installation · No sign-up · Your files never leave your computer
A complete, fast and hassle-free PDF comparison tool.
Navigate both PDFs at the same time, at the same position, without losing your place.
Your files never leave your computer. Everything is processed directly in the browser.
Compare PDFs up to 20 pages at no cost, with no sign-up and no limit on comparisons.
PDFs with no page limit and no ads, starting at $5/month.
A comfortable interface for reviewing documents over long periods.
Portuguese, English, Spanish, French, Chinese, Arabic and more.
Compare two PDFs in 3 simple steps, right in your browser.
Load the original PDF in one panel and the updated version in the other.
Both documents move together, page by page, at the same speed.
See side by side what changed between versions — no need to print anything.
From law firms to HR teams, RoseLab speeds up PDF review.
Compare drafts, contracts and filings to spot changes between versions.
Check balance sheets, reports and statements without extra software.
Compare versions of papers, articles and study materials side by side.
Review proposals, bids and internal documents quickly.
How can I compare two PDF files online for free?
With RoseLab, just open the two PDF files in the side-by-side panels. Scrolling is synchronized automatically, letting you compare page by page with no install and no cost.
Does RoseLab send my PDF files to a server?
No. All processing happens locally in your browser. No PDF file is uploaded or stored on servers, keeping your documents fully private.
Is there a page limit for comparing PDFs on RoseLab?
On the free plan you can compare PDFs up to 20 pages. The Pro plan removes the page limit and the ads.
Does RoseLab's PDF comparator work on mobile and tablet?
Yes, RoseLab works in any modern browser, including smartphones and tablets, with no app to install.
What kinds of documents can I compare with RoseLab?
You can compare contracts, technical reports, blueprints, business proposals, bids, manuals and any PDF document, page by page.
Free for PDFs up to 20 pages. No sign-up, no install, no upload.
Compare PDFs NowNo installation No upload 100% private