Turn your books into cash.
ShelfGem tells you in seconds which books are worth money — scan any book on any phone, with no app to install — and we buy them from you.
No app. No hardware. Works on the phone already in your pocket.
How it works
Three steps, no learning curve
If you can take a photo, you can use ShelfGem.
Scan a book
Point any phone's camera at a book. No app, no setup.
Get the answer
ShelfGem tells you instantly whether it's a buy.
Get paid
Keep the books worth money — we purchase them from you.
Why ShelfGem
Built to be effortless
Powerful technology behind a screen anyone can use.
Any phone, no app
It runs right in the browser. Nothing to download, no special scanner to buy.
Instant answers
Scan a book and know in a second whether it's worth money.
Fits your workflow
Works alongside the sorting and scouting tools you already use.
We pay you back
Set the right books aside — we buy them from you.
Who it's for
For shops and for shelves
Whether you move thousands of books or just have a few boxes.
Partner with ShelfGem
Turn donations and overstock into revenue. Spot the books worth money in seconds, with no new hardware to buy. Tell us about your shop and we'll get you set up.
Request access →Cash back for your books
Soon you'll be able to get paid for the books sitting on your shelves. Join the list and we'll let you know the moment it's ready.
Join the waitlist