A lightweight CLI for generating Bitcoin cold wallets, managing keys, and signing transactions offline.

Full documentation, command reference, and examples at bitcold.dev

Install

npm install -g bitcold

Quick Start

# Create a wallet with alias 'wallet_0'
bitcold wallet create wallet_0

# Show BIP84 account info
bitcold wallet show wallet_0@account_0:0 --private --mnemonic

# Sign a transaction (ouputs a raw transaction QR code for air-gapped environments)
bitcold tx sign --from my-wallet@account_0:0 --to bc1q... \
  --amount 50000 --fee 1500 \
  --utxo <txid:vout:value> \
  --qr

# Display the address QR code to receive Bitcoin
bitcold wallet receive wallet_0@account_0:0