Light share
Share photos between FSTVL phones with light — no Wi‑Fi, pairing, or signal.
How it works
- Light stream — Send flashes a fountain of QR frames (missed frames are fine).
- Camera capture — Receive rebuilds the file from any ~1.2× enough frames.
- Verify & save — SHA-256 checked, then you save on-device.
FSTVL-only format. Prefer photos and short clips.
Tips
- Prop the receiving phone steady — hand shake kills throughput.
- Turn sender brightness up and fill the receiver’s view with the white code.
- Tap the code to enlarge if framing is hard.
- Visit Light share once online so the PWA can cache it for offline use.
Not encrypted: anything on the sending screen can be read by any nearby camera.
Send with light
Pick a file. The other phone opens Receive and points its camera here.
Photo or short video · up to 64 MB
Tap the code to enlarge for easier framing.
Choose a file to begin
Switch this page to on the other FSTVL phone.
· Stays on this page · Not encrypted
Receive with light
Start the camera, hold steady, and fill the frame with the flashing Send code.
Ready — start the camera and point at Send.
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· Stays on this page · Not encrypted