# Dropoff

> Dropoff is a free, secure, zero-backend file sharing tool that sends files directly between browsers over an encrypted peer-to-peer WebRTC connection. Everything runs client-side, so files are never uploaded to or stored on a server.

## What it is

- Project name: Dropoff
- Category: client-side file transfer utility
- Model: zero-backend, peer-to-peer (browser to browser)

## Core features

- Client-side processing: the entire tool runs in the browser; there is no backend that handles file data.
- Zero server upload: files never leave the two connected devices and are never stored on a server.
- Privacy-first: encrypted peer-to-peer transfer with one-time, unguessable share links and no accounts or tracking of file contents.
- High speed: transfers use the direct peer connection between the two browsers, avoiding a round trip through cloud storage.
- No limits from the service: because nothing is uploaded, there is no server-side file size cap.

## Pages

- [Home](https://www.dropoff.lol/): pick files, generate a one-time link, and share it.
- [About us](https://www.dropoff.lol/about): why Dropoff exists and how it started.
- [Blog](https://www.dropoff.lol/blog): guides and notes on private, browser-based file sharing.
- [Why Client-Side File Processing Is the Future of Online Privacy](https://www.dropoff.lol/blog/client-side-file-processing-online-privacy): how client-side processing keeps your files on your device.
- [Why Peer-to-Peer File Sharing with WebRTC Is Faster and More Private Than Cloud Storage](https://www.dropoff.lol/blog/webrtc-p2p-file-sharing-faster-more-private): how WebRTC sends files directly between devices.
- [Terms](https://www.dropoff.lol/terms): terms of service for using Dropoff.

## Details

- Share links use the format `https://www.dropoff.lol/receive/<id>`.
- Practical file size limits are set by the browser: roughly 1–2 GB on desktop Chrome, about 1 GB on Firefox, and a few hundred MB on iPhone/iOS Safari.
- The sender's tab must stay open while the transfer is in progress, because the sender's browser is the source of the files.
- Works on Windows, macOS, Linux, iOS, and Android in any modern browser.

## Contact

- Email: admin.dropoff@gmail.com
- Open source: https://github.com/ketanofc/dropoff