PhotonDrop v29
Optical ready

AIR-GAPPED FILE TRANSFER

Files move through light.

Pair through the camera. Transfer optically while offline, or accelerate over an end-to-end encrypted direct connection.

01Choose

Pick any file on the sending phone.

02Point

Hold the receiving camera over the full screen.

03Save

Missing frames recover automatically; SHA-256 verifies the result.

Send
Step 1 of 3

SEND A FILE

Choose your file

Start here. We recommend the first transfer option unless you specifically need to stay completely offline.

How should we send it?
Advanced optical settings
Your file stays private The other phone gets the secret key from your screen. A relay may forward scrambled file pieces, but it cannot read them and does not store the file.
Receive

RECEIVER

Receive a file

Tap the button, then point this phone at the entire code on the sending screen. Keep all four colored corners visible.

◉
Camera-key encryptionThe file key and plaintext remain on the two devices.