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Book Database Software - catalog your book collection

Keep track of your book collection and wish listMobile app, web-app or downloadable? Your choice!
Automatic book details and cover imagesJust search our huge online book database by ISBN
Over 40 million ISBNs recognizedGuaranteed 97% success rate on your ISBN searches!
For your phone
  • Available for iOS and Android
  • Built-in camera barcode scanner
  • Sync data with the Movie Connect software
For your computer
  • For Windows, macOS, Linux, chromeOS, etc.
  • Use with the free CLZ Barry barcode scanner app
  • Sync data with the CLZ Movies mobile app

Or... use them both, as perfect companions!

Both CLZ Books and Book Connect 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 on your phone, then use Book Connect 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.

CLZ Books
1 year
Book Connect
1 year
USD $0.00
USD $0.00
save USD $0.00

Also still available: Book Collector for Windows

Book Collector is our legacy desktop software. Old-skool software that you install on your own computer, with your data stored locally.
Using Book Collector is only recommended for advanced Windows users, who know how to install/update software, manage folder and file permissions, configure firewall/security software, make their own backups, etc...

Learn more about Book Collector

Latest software updates

I have used this program for over 4 years now! Works immediately after downloading and networks with the current ISBN database. Responsive customer service is another plus. IMHO it’s the best book cataloguing app out there! — Greg luxist (USA) on September 01, 2023

Reviews from customers

September 11, 2023
A serious time-saver!
It's a working quite well, thank you! I've managed to catalog over 160 books in just under 2 hours of time. With a collection exceeding 1500 books, this app is a serious time-saver! Out of these books so far, I've only found 3 needed a little extra love or manual attention. The barcode scanning is awesome! — Ron J. on CLZ Books
September 02, 2023
Facilidade em adicionar livros manualmente e por ISBN Facilidade em filtrar livros por qualquer característica. — fernando almeida on CLZ Books
September 01, 2023
Exceptional book database!!
I have used this program for over 4 years now! Works immediately after downloading and networks with the current ISBN database. Responsive customer service is another plus. IMHO it’s the best book cataloguing app out there! — Greg luxist (USA) on CLZ Books
August 21, 2023
Very useful
I've started the trial for the cloud version and the desktop version to see which I prefer. I might end up using the cloud version but still keeping the app on my phone as well as it's just more user friendly when in a book shop to open and check my library list.
Honestly out of all the apps I've used this one has been the easiest to get used to, add books to and navigate. As I've now gotten too many books that fit in my apartment I've found that it will be very useful to keep catalogues of what's in storage, what's in the apartment and what I keep at my office and lend out. — Monique Gomez (Australia) on Book Collector
August 14, 2023
Wonderful product
I'm delighted with both Book Connect and now CLZ Books. Initial setup worked well.
I've entered almost 3,500 books in the database, with about 500 more remaining. Collected over more than 60 years.
Thank you for producing, maintaining, and constantly improving such a wonderful product. — Les Bergen (USA) on Book Collector
August 01, 2023
La uso da anni con piena soddisfazione. Consigliabilissima anche assieme alla versione desktop. — Raffaele Petralli on CLZ Books
July 31, 2023
Easy to use, easy to add to, fantastic as a phone app when I'm out buying second-hand books. Well worth the subscription. Well done CLZ Team! — David South on CLZ Books
July 27, 2023
Reliable app
I've been using this for years. It is reliable. — Izura Pilus on CLZ Books
July 27, 2023
Easy to use
Great app. Quick and easy to use. If problems occur tech support is quick, responsive and very helpful. — Adam Arnold on CLZ Books
July 17, 2023
So easy
Makes it so easy to keep track of the books in our personal library! — Jessie Rohlmeier on CLZ Books
July 09, 2023
The CLZ programs are among my favorites
I have used CLZ software for several years, for my audiobooks, and hard and soft covered books. Also, I use their software for all of my movies, whether it be DVDs, Blue Ray disks, or what I've bought on Amazon Prime Video. Of all the many software/apps I use CLZ programs are among my favorites. The book and movie programs are what I use to inventory my stuff. — Richard Menard (USA) on CLZ Books
July 06, 2023
No more duplicate purchases
Thank you for your time and patience with this. At first, I was not sure if I wanted to use this particular piece of software as I had been less than impressed with other brands, but after cataloging my collection, and now that this is done, continue to add to the collection as I add books—and to be able to see what books I have so I don’t duplicate the purchases.
This is the software I was looking for, and the tech support pretty much puts your brand over the top for me. Thanks again. — Robert T. on CLZ Books
July 04, 2023
Technical Support always answer. — Rodrigo V on CLZ Books
July 03, 2023
Using for years
I have been using for years. Would not use anything else. — Roger Torres on CLZ Books
June 30, 2023
Indispensable for book collectors. — T. Adams on CLZ Books
June 29, 2023
Very intuitive
Flexible and very easy to use. The user interface is very intuitive. It has had several nice and useful enhancements over the time I have been using it. Support, if and when you need it, it is fast and very efficient. — Joao Bentes de Jesus on CLZ Books
June 21, 2023
Great for keeping track of books
Barcode scanner fantastic. Good online database for manual search.
Update 6/23. Tech help prompt and responsive and App continues to be improved. Took 3 years to enter the thousands of books in our home library. Great having them at our fingertips. Now no second guessing about whether we've bought a book or read it before so, in addition to the unparalleled convenience our having the library on our phones we've saved more than it cost in not doubling up. — Barry Powell on CLZ Books
June 11, 2023
Had a play around to see how it worked and love that I can choose which fields I use. I do find when going back into a book I've already added can be a little confusing as there are multiple pages but I'm sure I'll figure it out. — Tracey Hinton on CLZ Books
June 10, 2023
Ottima applicazione
Ottima applicazione e soprattutto un eccellente servizio di assistenza, rapido, cortese e competente! — Enea Cavallo on CLZ Books
June 08, 2023
Quick to get organized
Took a few days to figure out How To, but once I self -learned, it's so quick to get my library organized. — Susan T on CLZ Books
June 03, 2023
Love this app
I’ve been using this app for over a decade, and it keeps me from purchasing duplicates. Not only do I enjoy the book database capability, but I particularly appreciate the customer support. The two times I have needed help, I have received a response within 24 hours. They also update the app on a regular basis, so they are always working to offer an improved product. This is a great app for book collectors. — CDColeman (USA) on CLZ Books
May 31, 2023
Fantastic app
Live that it finds the LOC catalogue numbers. — Tafirkhoo on CLZ Books
May 28, 2023
Fantastic product
Fantastic product that also has fantastic customer service support if needed. Direct support provided by savvy engineers included in license purchase. A great asset having your library in you pocket, always backed-up to the cloud! — birdwriter1 (United Kingdom) on CLZ Books
May 28, 2023
Easily 5 stars
Makes tracking your book library as easy as it could possibly be. — Gary Pierce on CLZ Books
May 22, 2023
I'm loving this program
I've been taking more time to input my books, both physical and digital, into Book Collector. I've had this program for years and have used it in spurts but now I'm putting time into it. Thanks for creating this way back when. I'm more than happy to have a subscription. Thanks for your improvements and making this the best option to catalogue my books — Phil S. (USA) on Book Collector
May 13, 2023
I Love it
Cloud access is useful when I'm at a bookstore and buying new books and checking my collection. — Alba Tigris on CLZ Books
May 11, 2023
Best app ever!!
CLZ Books is my go to app for tracking my book libraries. I rely on it whenever I purchase new books or audiobooks to avoid duplicating purchases. I recommend the app to all my friends.
The customer support function is also outstanding. I recently had an issue and contacted customer support for help. They responded quickly and helped solve my issue. Having such customer support makes the app that much better. — Shelby5463 (USA) on CLZ Books
May 08, 2023
Thank you!
Oh my goodness, this latest re-designed collection tab-bar is AWESOME!
Just what I wanted/needed.
Thank you so much for all the work to do to keep improving this already great product. — Brian Lund (USA) on Book Collector
May 02, 2023
So easy
Scanning books is so easy! I was using a different app to track the books i own, but was having problems with it properly tracking them. This app is so easy to add and navigate! — Amanda Rosman on CLZ Books
April 28, 2023
Great organizational capabilities
I've been using the comic app for some time and love it, great organizational capabilities, and I just learned you have a book app and it has everything I need.
Love it! — Dylan Mitchell (USA) on CLZ Books

Read more reviews from customers