How this works

Every tool on this site runs entirely inside your browser. Here’s exactly what that means and how you can check it yourself.

Nothing you process is ever sent anywhere

When you choose or drop a file, it’s read directly by your browser’s own JavaScript engine. The libraries that do the actual work — merging pages, splitting a document, rotating a page — are downloaded once from this site and then run on your device using your device’s own processing power. Your file’s contents never travel over the network at any point.

You can verify this yourself: open a tool page, let it finish loading, then turn off your Wi-Fi or unplug your network cable. The tool still works. That’s not a coincidence — it’s a direct consequence of how the site is built, not a claim we’re asking you to take on faith.

What does leave your device

Two things, and we’d rather say so plainly than let a privacy pitch overstate itself:

• A page-view count. This site uses GoatCounter, a privacy-focused analytics service, to count visits. It doesn’t use cookies or collect personal information.
• Advertising. This site runs Google AdSense to help cover its costs. AdSense may set its own cookies and use data according to Google’s own policies, which we don’t control.

Neither of those has anything to do with the files you process — that part genuinely never leaves your device. Full detail on both: see the privacy page.

Why build it this way

Most free PDF and file tools work by sending your file to a server, doing the work there, and sending a result back. That’s simpler to build, but it means a copy of your file — which might be a contract, a statement, or anything else you didn’t necessarily want to hand to a third party — passes through someone else’s infrastructure. Running everything in the browser means that step just doesn’t exist.