Peertransfer

In-browser secure P2P-filetransfer in three simple steps:

1. Select the file you want to send.

• Open the generated link on other PCs.
• Download over a direct (as in peer-to-peer) and end-to-end encrypted line.

Thus the file will only be available for download as long as the sender keeps his browser tab open.

Features

• Uses WebRTC for peer-to-peer data connection
• End-to-end encryption
• Authenticate incoming connections
• Display progress for both sender and receiver
• Allow multiple transfers at once
• Cache encrypted data for successive transfers in one session
• Stop sending if the receiver becomes unavailable

Install

Simply pull the gh-pages branch like so. Peertransfer can be used on any (managed) hoster.

git clone https://github.com/pguth/peertransfer.git
cd peertransfer
git checkout gh-pages

# done and works right out the box if `peertransfer/index.html`
# etc. can be accessed through the web.

Tech in focus

• WebRTC wrapped by PeerJS.
• Stanford Javascript Crypto Library

Influences & sources

• HTML/CSS forked from Creating a File Encryption App with JavaScript.
• Code inspired by oro-chat.

Related &|| noteable

• My presentation slides
• A variation of peertransfer I wrote: peermesh
• sharedrop "HTML5 clone of Apple's AirDrop - easy P2P file transfer powered by WebRTC"
• ShareFest "Web based p2p file sharing built on WebRTC Data Channels API"
• serverless-webrtc "A demo of using WebRTC with no signaling server."
• WebTorrent "Streaming torrent client for node & the browser"
• OnionShare "Securely and anonymously share a file of any size"
• FilePizza "Peer-to-peer file transfers in your browser"