This screen transmits
Send a file or text
Any file up to 64 MB, or a pasted text snippet up to 4 MB. Compressed when it helps, restored with its original name.
Transfer files
with light.
Send a file or a block of text from one screen to another device's camera. No account, pairing, cloud storage, or network path between devices.
This camera receives
Point and receive
Point your camera at the sender's screen to receive the file.
Native Android app
Install once. Transfer offline.
The APK contains the complete sender and receiver, needs no account, and has no Internet permission.
Fully isolated computer
Bootstrap a Python receiver with light
If Python 3 and OpenCV are already installed, transfer the receiver itself and then files without any network, cable, or USB drive.