Home What's new? Reviews Shop Support

Book Database Software - catalog your book collection

Automatically download book details and imagesLike author, title, publisher, genres, subjects & cover art.
Just search our huge online book database ... ... by ISBN or by author & title.

3 home library solutions - mobile app, web-app or desktop software:

Feature comparison

For Windows, macOS, iOS & Android

The "login & go" solution :

USD $2.50
Mobile app for iOS & Android

The mobile solution :

  • Install on your phone or tablet.
  • Built-in barcode scanner.
  • All data stored on your device.
  • Optional cloud storage (free).
For Windows & macOS

The pro solution :


Use the free CLZ Cloud service to:

  • Synchronize your book database between the desktop software, mobile apps and the Connect web-app.
  • View your list online and share it with friends and family.
  • Always have an online backup of your book database.

Free CLZ Barry barcode scanner app

  • Scan barcodes with the camera of your phone or tablet.
  • Instantly send the scanned barcodes to the Book Collector or Book Connect software on your desktop computer.
  • Download CLZ Barry from the App Store / Play Store.

Latest software updates

I would like to congratulate you on recent changes. The new design for the Book Connect is excellent, it is cleaner and crisper, plus it is faster to use. That is always a plus. Additionally, the changes to searching in the Core are beneficial as well, much faster, especially the new integrated search blank (author and title together), plus the way we can now see more information about each book in the Core. That is a big help in selecting a good volume out of many. Bravo! — Debbie Cox on January 10, 2018

Reviews from customers

March 14, 2018
A blessing
I absolutely love this app since I’m a collector of children’s books it has been such a blessing to put all my inventory online. — Jackie Johnson on CLZ Books
March 12, 2018
Love this app!! — Brittany Jones on CLZ Books
March 10, 2018
The best
Best booklist app I've found. — Aura Lipski on CLZ Books
March 09, 2018
Great app!
I've been using this app more and more and the desktop version less. I use four Collectorz apps. — Beer John on CLZ Books
March 08, 2018
Sehr zufrieden
Super leicht zu bedienen mit ausführlicher Datenbank zum suchen und speichern; bin sehr zufrieden. — Didi Gores on CLZ Books
March 02, 2018
I just wanted to send a big THANK YOU for making the app I’ve always needed in my life! :D I’m such a control freak when it comes to my books and this app has made it both helpful and fun to get a good overview of all my books! (There’s a LOT of books...)
So thank you, keep up the great work and happy Friday! :) — Trine on CLZ Books
March 01, 2018
Das beste Buchprogramm
In Verbindung mit der Desktopversion das beste Buchprogramm, dass ich kenne. Wird ständig besser. — Ein Google-Nutzer on CLZ Books
February 27, 2018
Great tool
Great tool for keeping track of my books. As I'm entering them into the system I am finding quite a few duplicates that I can sell & get new books. — A Google user on CLZ Books
February 26, 2018
Excellent product
I've neglected my collection for some time and i recently set about putting everything up to date. i just want to tell you how you've made an already excellent product even better, constantly making improvements. its a pleasure to use. I also own the book collector apps for android and IOS so you can imagine how happy i am about the ease of syncing it all. I wish you continued great success. — Loraine Mooney (Canada) on Book Collector
February 26, 2018
Great app
600 and counting. ^_^ — Christopher James on CLZ Books
February 26, 2018
I love all CLZ
I love all CLZ, I also use comic data base. — Dee Martin on CLZ Books
February 24, 2018
Excellent database app
Works well across platforms, constantly updated. Well worth the money if you have a decent size library. — Cod Codliness on CLZ Books
February 19, 2018
Superb catalogue manager
I find it a superb catalogue manager and a blessed relief after years of trying to maintain a very large collection with spreadsheets. It is one of the very few apps I have been willing to pay for (I'd rather spend the money on more books!) and I have not regretted doing so. — Barry Brown on CLZ Books
February 17, 2018
Grazie al cloud CLZ sono riuscita a importare la mia libreria da un'altra app senza perdere dati! Sono entusiasta... erano be 1109 libri! — Rita De Meo on CLZ Books
February 06, 2018
This app is an absolute god-send. If you're a collector it is completely invaluable. — Scott Jensen on CLZ Books
February 06, 2018
Easy to use
Easy to use and efficient. Great. — Marie Nadeau on CLZ Books
February 03, 2018
CLZ Books
Una base amplia base de datos, con criterios de organización amigables para la clasificación de bibliotecas. — Erickson Jose Bautista Espejo on CLZ Books
February 03, 2018
Una de las aplicaciones más completas para gestionar una biblioteca; se puede comprar en su web un lector por.codigo de.barras o descargar uno desde PlayStore o IOS. MUY COMPLETO!! — Andrés López-Carrasco Rodríguez on CLZ Books
February 02, 2018
Track my home library
An amazing way to track my home library for insurance purposes. — Brandon Michael Queen on CLZ Books
January 31, 2018
Fantastic app
Great way to stay organized! — Erika McCord on CLZ Books

Read more reviews from customers