Your files never leave this device Merge PDF

Everything happens right here in your browser — no uploads, no servers, no account. Switch off your wifi and it still works.

How can I verify this?

Watch the network. Open DevTools (F12) → Network tab → convert a file. You'll see zero network requests.

Or go offline. Turn off your wifi entirely. The converter still works.

Why it works. The conversion runs in WebAssembly in your browser. There is no server to send anything to.

Share this proof directly: add #verify to the page URL.

Add two or more PDFs, put them in the order you want, then merge.

Drop files here or click to browse

PDF files — add as many as you need