Spine

A shelf that reads you back

Spine is a personal book library app. Build a visual shelf of the books you own, add new ones by typing them in or snapping a photo of a bookshelf or Kindle library, and get AI-powered recommendations weighed against your own taste.

Visual bookshelf — your library as colored spines, not a plain list.
Add books by typing them in, a shelf photo, or a Kindle screenshot.
AI-powered detection reads book spines and Kindle screenshots to find titles automatically.
Recommendations weighed against what you already own.
Private by default — only you can see your library.

Read the Privacy Policy for details on how your data is handled.