Hi guys, i built an offline BIP39 lab after the Coldcard incident. You can try it :

BIP39 Visual — Experiment

If you can’t see the path from entropy → checksum → 12/24 words, you’re trusting a black box. BIP39 Visual (single HTML, no server) • Coin / dice / binary input • Standard: phrase + SeedQR • Pro: full pipeline (bits, SHA-256, groups) • Time to crack • Browser “Generate” flagged as unsafe on purpose Not a wallet. Learning tool only. Never use a web seed for real funds. I would appreciate the feedback. Thank you!

Muy buen juego, despues lo juego.