ShadowCat is an open-source web application that enables file transfer between devices using QR codes, requiring no server infrastructure. The tool works entirely in the browser using WebRTC for peer-to-peer connections, making it useful for quick, offline file sharing in environments where traditional methods aren't available. While innovative, it's currently limited to smaller files due to QR code size constraints.
Background
WebRTC enables peer-to-peer data transfer directly between browsers without plugins, while QR codes have become a popular method for quickly sharing small amounts of data between devices.
- Source
- Hacker News (RSS)
- Published
- May 22, 2026 at 07:11 PM
- Score
- 5.0 / 10