Nellix/sonic-chat

Offline authenticated text chat carried entirely by audible sound — no Wi-Fi, Bluetooth, account, or server.

2 best points · 2 comments · 1 Hacker News post · 5 GitHub stars · View on GitHub

Hacker News discussions

• Show HN: What if two devices could chat using only sound? (2 points, 2 comments, by n3ll1x93, 2026-08-18)