Tool Profile

ShadowCat

Browser-based QR file transfer tool for moving bytes without servers.

At a glance:

First seen:2026-05-22

Last seen:2026-05-22

Sightings:1

Source:github.com

What it is

Browser-based QR file transfer tool for moving bytes without servers.

Why developers recommend it

The thread drew praise for the fountain-code QR transfer idea and surfaced adjacent tools with real demand.

Hacker News evidence

2026-05-22

Commenters called the approach efficient and "cool and minimalistic," then pointed to qr-send.com and phntm.sh as related projects.

Show HN: ShadowCat – file transfer through QR Codes in a Browser