Secure Optical Transfer
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 and secure.
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. AES-256-GCM encryption happens before the first QR frame.
This camera receives
Point and receive
Point your camera at the sender's screen to receive the file.
No network path is required between the devices; encrypted bytes travel as light. A recorded QR stream does not reveal the plaintext file. Keep the JSON master key and separate six-digit transfer code protected.