card-gen

Generate Luhn-valid test payment card numbers from the command line.

Install

npm install -g card-gen

Usage

card-gen [options]

Options:
  -n, --count <number>   Number of cards to generate (default: 5)
  -t, --type <network>   Card network (default: "all")
  -b, --bin <prefix>     Custom BIN prefix (overrides --type)
  --cvv                  Include CVV/CVC in output
  --expiry-from <MM/YY>  Earliest expiry date (default: current month)
  --expiry-to <MM/YY>    Latest expiry date (default: 3 years from now)
  -h, --help             Display help
  -V, --version          Output version number

Examples

# 5 random cards across all networks
card-gen

# 10 Visa cards with CVV
card-gen -n 10 -t visa --cvv

# 3 cards with a custom BIN prefix
card-gen -n 3 -b 453985

# Mastercard cards expiring between 01/25 and 12/27
card-gen -n 8 -t mastercard --expiry-from 01/25 --expiry-to 12/27

# JCB cards with CVV
card-gen -n 4 -t jcb --cvv

Supported networks

| ID | Network | |---|---| | visa | Visa | | mastercard | Mastercard | | amex | Amex | | discover | Discover | | unionpay | UnionPay | | jcb | JCB | | diners | Diners Club | | maestro | Maestro | | mir | Mir | | rupay | RuPay | | eftpos | eftpos |

Notes

• All card numbers pass the Luhn algorithm — they are structurally valid but not real cards.
• Card numbers are displayed without spaces for easy double-click selection and copying.
• Amex CVV is 4 digits; all others are 3 digits.
• UnionPay and Maestro cards can be 12–19 digits depending on the spec.

License

MIT