Hi HN,
I built [PinSend](https://pinsend.app) — a free web app for instantly sharing text between devices, using a simple 6-character PIN.
- No login, no account, no install.
- Peer-to-peer WebRTC transfer (no server relay, no cloud).
- Cross-platform: works on any modern browser.
I built PinSend for myself while developing web apps—I was always copying ngrok links and sending error logs between my laptop and mobile devices. I wanted a frictionless, instant way to move links and text between anything.
*Demo:*
1. Open https://pinsend.app on your phone & laptop
2. Paste or type some text and hit "Send", enter the PIN on the other device
3. Instant sync!
4. No more emailing or Whatsapping notes to yourself
Would love feedback!
How do we know that it’s end-to-end encrypted and that it’s peer-to-peer (without examine the network traffic)? The source doesn’t seem to be available (I presume this is not open source) and there doesn’t seem to be a self hosting option. This brings me to my next question: what is the business model here?
Your page says “Share text and images instantly and securely across all your devices”, but I don’t see a way to send images. Is that on the roadmap or is the inclusion of images in this description a mistake?
Transferring data across devices on different platforms (like photos from an event, for example) is not easy if one wants to avoid messaging apps. Firefox Send and similar services hosted by generous people for others to use have different limits to manage costs and handle abuse. If this service offers transferring images and videos and the concerns about encryption and privacy are addressed, it could be very useful.