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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

After inadvertently deleting my database from my phone, I contacted CLZ and within minutes, they answered me with the solution. It worked and my database is complete again. Thank you so much!! — Willa Hensley (USA) on November 24, 2023

Reviews from customers

November 27, 2023
Your customer service is great
I appreciate good “after-sales” service and an excellent product. It is, after all, this that I tried to provide when I was managing my company. You probably know the adage that getting to number one is difficult but staying number one is even more difficult. The paradox of excellence i.e., once you have achieved a certain level of “excellence”, a decline is inevitable. This is at least what most experts believe. I made it a goal to prove them wrong.
The reason I write this is because I think that this is the philosophy that you are applying with your company. You are constantly “tweaking” your product – adding features, making it easier and fun to use. I find this commendable and worthy of praise.
As you know, I purchased your product some years ago. At the time, I “evaluated” different databases. I even attempted to create my own but found that yours met all my criteria including being readily affordable. I have not been disappointed. In the coming months, I hope to enter the rest of my book collection. This has become a priority since my wife has criticized me for not being able to locate a book that she asked for and that I know I have. (It is in one of my many bookcases, but it has not been entered in my database yet! The good news is that after hours of searching, I found it. This made me realize that had I entered it, I would have found it immediately and really impressed my wife instead of being chastised. Good customer service will forever remain valuable!)
Since I have books that were purchased before barcodes were introduced, entering these books has been a little more challenging. Should I encounter a particularly difficult situation that I cannot resolve, I will be sure to contact you. I know that help is only an email away.
I wish you continued success which I am sure that you will enjoy as long as you keep doing what you are currently doing. — Michael Mancini (Canada) on Book Collector
November 24, 2023
Excellent support team
After inadvertently deleting my database from my phone, I contacted CLZ and within minutes, they answered me with the solution. It worked and my database is complete again. Thank you so much!! — Willa Hensley (USA) on CLZ Books
November 22, 2023
Ottima applicazione
Ottima applicazione e soprattutto un eccellente servizio di assistenza, rapido, cortese e competente! AGGIORNAMENTO - Sempre meglio! L'ultima release contiene un'utilissima funzione di azzeramento dei campi vuoti nelle Pick lists: era un'osservazione che avevo fatto meno di una settimana fa! Servizio clienti assolutamente fantastico. — Enea Cavallo on CLZ Books
October 30, 2023
The best
The best program for this matter. — Goern Luedtke on CLZ Books
October 26, 2023
Good App
Good app, finds almost all books via the bar code otherwise it can be added manually. Great asset to not buy books twice when your library grows and your cannot memorize each item. — duzbigalo (Germany) on CLZ Books
October 23, 2023
Easy to use
Really easy to use and categorize. — Johannah Caley on CLZ Books
October 02, 2023
You guys have the best program
I wanted to thank all of you for doing such a wonderful job of creating a program that I use for my entire collection of almost 8K books. Every single book I own is in there and I have had multiple sources ask me how I have such an organized collection and I tell them you guys have the best program and incredible customer service. You guys are just a really great company and for someone like me with a disability this helps me organize. — Nelson Fountain (USA) on Book Collector
September 29, 2023
Great software. Fantastic customer service. Almost perfect. — Jutrdghcxdf (USA) on CLZ Books
September 25, 2023
My book collection
I have been using the program to catalogue my book collection for quite a while and only recently decided to print my catalogue. The program worked very well, allowing me to choose the fields I wanted to include. I am very satisfied so far. — Bob G. (Canada) on CLZ Books
September 23, 2023
I absolutely LOVE this app!
I have been wishing for a tool like this ever since made my first book collection database in Excel 20 years ago, and now I have finally found it! It is beautifully designed, it's very intuitive and simple to use, it is easy and quick to add new books, and it has all the functionality you could wish for. It is also easy to personalize so that you only use the functions that you need, you can sort and organize your collection exactly as you please. And I LOVE that it has all the cover photos instead of just long lists of titles. I strongly recommend CLZ Books to all book lovers out there! — Inger-Anne (Norway) on CLZ Books
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

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