Description:

A pure JavaScript ISBN toolbelt

Install:

npm install -g isbn_toolbelt

Usage: isbn.js [COMMAND] ISBN

Commands:
  check     Check to see if an ISBN is valid
  convert   Convert between 10 and 13 ISBN
  generate  Generate an SVG barcode

If COMMAND is omitted and an ISBN is present,
it will display both the 10 and 13 length ISBNs.

Demo: https://nmrugg.github.io/isbn/demo.html