# Drop P2P

> Secure peer-to-peer file transfer for Chrome, desktop browsers, and phone browsers.

Drop P2P transfers files directly between devices with WebRTC peer-to-peer data channels. A Cloudflare Worker is used only for signaling, so file bytes are not stored on the signaling server.

Canonical URL: https://drop.tonyzone.shop/

## Primary Pages

- Home and web sender: https://drop.tonyzone.shop/
- Chrome extension listing: https://chromewebstore.google.com/detail/drop-p2p-peer-to-peer-fil/ancageadecafpnncnfepepjiiflkhfbf?authuser=0&hl=en
- Signaling health endpoint: https://drop-p2p-signal.tonyzone.shop/

## Core Capabilities

- Send one or multiple files from desktop to phone.
- Receive files by scanning a QR code or opening a shared link.
- Allow multiple receivers to download from the same QR code or link while the source device stays open.
- Send files back from phone to desktop during an active P2P session.
- Install the web app as a PWA on supported browsers.
- Use the Chrome Side Panel extension for quick desktop sharing.

## Technical Model

- File transfer uses WebRTC DataChannel.
- The signaling server stores only SDP handshakes and session metadata.
- File bytes transfer directly between source and receiver devices.
- For multiple receivers, the source device creates a separate WebRTC connection and uploads the files once per receiver.

## Important Limits

- The source device must stay online and keep the page or extension open.
- Mobile browsers are less reliable as a source for large files or many simultaneous receivers.
- Mobile web does not provide reliable stream-to-disk support, so large received files may require significant memory.
- Current free tier UI limit is 1GB per file.
- Real-world transfer reliability depends on device memory, browser behavior, network quality, and source upload bandwidth.

## Suggested Summary

Drop P2P is a Chrome and web-based peer-to-peer file transfer tool. It lets users share files between desktop and phone through QR codes or links, without storing file bytes on a cloud server. Multiple people can download from the same link while the source device remains open.

## More Detail

See https://drop.tonyzone.shop/llms-full.txt