LightTransfer
Transfer files via light, no network needed
LightTransfer lets field researchers, photographers, and event organizers move large files between devices using only a screen and a camera. No cables, no Wi‑Fi, no app installation—just a web page and a QR stream.
Vite + Express + Clerk for auth + Stripe for billing + PostgreSQL for session data
Not required
Free tier: up to 2 MB per transfer, 5 transfers per day, no custom domain. Pro tier: unlimited transfers, custom domain, analytics, priority support.
Medium — The app requires HTTPS and camera access, but can be deployed on Vercel or Netlify with a simple Node/Express backend and a Vite front‑end.
- ✓High demand for offline data transfer in remote environments
- ✓Open source base reduces development time
- ✓Unique use case with low competition
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