Send a file. It lands anywhere.
One file, flying device to device
The arc is the live encrypted channel between the two devices — not a detour through a server. On the same Wi-Fi it never even leaves your network.
Three taps, then it flows
Pair
One device shows a QR code; the other scans it, or types a short room code. That's the whole handshake.
Drop
Pick any files. They stream directly between the two devices over an encrypted WebRTC channel.
Done
Bytes go device-to-device — never through a server. On the same Wi-Fi it stays fully local.
The file never touches a server
A note on how this works: scanning a QR code to pair is the unavoidable price of “no install, runs in any browser.” It isn’t zero-tap like AirDrop — browsers can’t silently discover devices on your network — but it’s the smoothest version that genuinely works iPhone ↔ Windows, with nothing to download.
Ready when you are.
No sign-up. No app store. Open it on both devices and send.