Two devices, same WiFi. Scan the square with the other device, check the safety number, then pinch a real file across. It goes straight between the two devices, encrypted — no server ever holds it.
On the other device, scan the square — or open pinchit.pages.dev/live and type this code. You do not need to press anything here; this device is already in the room waiting.
WANT IT WITHOUT A TAB OPEN? This page only works while it's open — every browser closes the tab, and the transfer with it. Pinch Desk is the app version: it sits in your tray, finds every Pinch device on your WiFi by itself, and keeps receiving files with the window shut. Coming to this page as a download.
PRIVATE BY WIRING: the file moves device-to-device over an encrypted WebRTC channel. Our server relays only a small handshake (a few kilobytes) — never your file or its name. Setting up a direct connection means the two devices learn each other's network addresses, and a STUN server sees your IP to make the introduction; no file data is involved. Camera and eye tracking run entirely on this device — no video ever leaves it.