Show HN: Generate (animated) QR Codes straight in your terminal

Category: cli-tool

Tags: qr-code, terminal, bitcoin, air-gapped, c

Score: 6.8/10 (Innovation: 6, Technical: 7, Documentation: 8, Utility: 6)

qr is a C-based command-line tool that generates and animates QR codes directly in the terminal. It supports multiple animated QR formats (BBQr, UR, numbered, TXQR) used for air-gapped Bitcoin wallet transfers, and includes careful memory hygiene to protect secrets. The project combines a built-in QR encoder with animation and security features in a single static binary.

Target audience: cryptocurrency users, security-conscious developers, CLI enthusiasts

Repository: https://github.com/Y2Z/qr · C · 0BSD · 70 stars

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