PairDrop

PairDrop: local file sharing in your browser. Inspired by Apple's Airdrop.

Developed based on Snapdrop

Differences to Snapdrop

Pair devices via 6-digit code or QR-Code
Pair devices outside your local network or in complex network environment (public wifi, company network, Apple Private Relay, VPN etc.).
Paired devices will always find each other via shared secrets even after reopening the browser or the Progressive Web App
You will always discover devices on your local network. Paired devices are shown additionally.
Paired devices outside your local network that are behind a NAT are connected automatically via Open Relay: Free WebRTC TURN Server

The receiving peer must accept the request of files before they are transferred and downloaded automatically afterwords if possible
Multiple files are downloaded as ZIP file
On iOS and Android the devices share menu is opened instead of downloading the files
Multiple files are transferred at one archive which shows the overall progress correctly
The integrity of the files is checked on receive
By zipping the files before sending, all metadata is preserved