OverReader – Goodreads plus Overdrive and/or Kindle Unlimited
Ok, admittedly, not really craft-related, (unless you count coding as a craft?)… but if you use Goodreads and either Overdrive or Kindle Unlimited for ebooks, take a look at OverReader. It can scan the books on your shelf and tell you if they are available at your local Overdrive library or if they are available in Kindle Unlimited.