Try CLZ Books Mobile for free
+ online services
Easily catalog books
on your phone or tablet
Automatic cover art and book details
Author, title, publisher, publication date, plot, genres, subjects, etc...
Easily add books by ISBN barcode or title
Scan barcodes with built-in camera scanner or search by author and title.
Customize entries with personal details
Location, owner, purchase price/store/date, notes, your rating, etc...
CLZ Books Mobile features
- scan ISBN barcodes with the built-in camera scanner. Guaranteed 98% success rate.
- search by author and title.
Our CLZ Core online book database automatically provides cover images and full book details, like author, title, publisher, publication date, plot, genres, subjects, etc..
EDIT ALL FIELDS:You can even edit the automatically provided details from Core, like Authors, Titles, Publishers, Publications Dates, Plot descriptions, etc.. you can even upload your own cover art (front and back!). Also, add personal details like condition, location, purchase date / price / store, notes, etc..
CREATE MULTIPLE COLLECTIONS:Collections will appear as Excel-like tabs at the bottom of your screen. E.g. for different people, to separate your physical books from your ebooks, to keep track of books you sold or have for sale, etc...
FULLY CUSTOMIZABLE:Browse your book catalog as a list with small thumbnails or as cards with big images. Sort any way you want, e.g. by author, title, publication date, date added etc.. Group your books into folders by author, publisher, genre, subject, location, etc...
USE CLZ CLOUD TO:- Always have an online backup of your book organizer database.
- Sync your book library between multiple devices
- View and share your book collection online
Or... use them both,
as perfect companions!
Both CLZ Books Mobile and CLZ Books Web can be used on their own, as a stand-alone solution. But these tools really come to life when used together, as they are great companions. While away from your computer use CLZ Books Mobile on your phone, then use CLZ Books Web at home, to work on your database on a big screen, with a real keyboard. Of course, you can sync your database between them through our CLZ Cloud solution.
Learn about CLZ Books WebCLZ Books Mobile Updates
v10.7: Faster down-syncing from CLZ Cloud
Apr 01, 2026
v10.6: Track your Reading History, plus other new data fields
Feb 24, 2026
v10.5 iOS: Disable book values / Search by ISBN10
Jan 07, 2026
v10.5 Android: Smoother navigation / Disable book values / Search by ISBN10
Jan 06, 2026
v10.4: “One-by-One” mode for adding books by ISBN
Nov 14, 2025
I especially like being able to separate family members’ collections. ISBN lookup works with typed numbers for older books. Clean, intuitive UI and helpful support.
CLZ Books reviews from customers
I especially like being able to separate family members’ collections. ISBN lookup works with typed numbers for older books. Clean, intuitive UI and helpful support.
1. I have collected a lot of books through the years.
And 2. I’m not as sharp as I used to be.
This app sorted out my library extremely well , efficiently and graphically smart. Love it.
And 3. The folks at CLZ.provided excellent support to sort out my age addled brain, for which I thank them very much. Both product and support are well deserving of my ranking.
Excellent.
Seitdem organisiere ich wirklich alles darin: Reiseführer, Kochbücher, Hörbücher und sogar Straßenkarten. Besonders toll finde ich die vielen Felder, die sich ganz flexibel an die eigenen Bedürfnisse anpassen lassen.
Auch die Newsletter sind sehr verständlich geschrieben, Neuerungen werden klar erklärt. Man merkt einfach, dass hier viel Herzblut drinsteckt. Und falls doch einmal eine Frage offen bleibt, ist der Support unschlagbar gut.
Ich wüsste ehrlich gesagt nicht mehr, was ich ohne CLZ machen sollte – von mir gäbe es am liebsten 10 Sterne!