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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

For phones/tablets

Mobile app for iOS & Android

  • Fast and slick mobile app
  • Install on multiple phones/tablets
  • All data stored on your device
  • Sync data to CLZ Cloud (optional)
  • Built-in camera barcode scanner

For computers

Web-app for Windows and macOS

  • Easy to use online software
  • Login and use from any computer
  • All data stored in the CLZ Cloud
  • Automatic updates & backups
  • Free CLZ Barry barcode scanner app

For Windows only

Download for Windows

  • For advanced Windows users only!
  • Install on one Windows PC
  • Manage your own data & image files
  • Sync data to CLZ Cloud (optional)
  • Free CLZ Barry barcode scanner app

Buy them together and get a discount

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

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.

Latest software updates

I realized today that I have been using your Book Collector software for nearly ten years now, since I switched from a physical book collection to ebooks. Simply put, I seriously doubt there is a better program available for managing my ever growing collection. The ease at which books can be added and managed, the efficient manner in which databases can be searched and reviewed, and the overall smoothness of the program in general is what makes it superior. Keep up the good work and I'm looking forward to another ten years of your excellent program! — Michael Wallen (USA) on October 09, 2021

Reviews from customers

October 09, 2021
Excellent program
I realized today that I have been using your Book Collector software for nearly ten years now, since I switched from a physical book collection to ebooks. Simply put, I seriously doubt there is a better program available for managing my ever growing collection. The ease at which books can be added and managed, the efficient manner in which databases can be searched and reviewed, and the overall smoothness of the program in general is what makes it superior. Keep up the good work and I'm looking forward to another ten years of your excellent program! — Michael Wallen (USA) on Book Collector
October 09, 2021
Track our huge book collection
Fun, so far a great way to add and track our huge book collection. App works wonderfully, and syncing between devices is great. — Kevin Holst on CLZ Books
October 07, 2021
Esta app me ha permitido organizar mi biblioteca
Es fácil de usar. Puedo controlar dónde están los libros que me han prestado y los que yo he prestado. Ahora puedo localizar fácilmente mis libros cuando quiero revisar un dato en específico. La relación costo/beneficio es adecuada para una biblioteca pequeña (650 libros aprox,) como la mía. — Demetrio M Velasco on CLZ Books
October 06, 2021
No more duplicates
This is a terrific App. You carry your book collection in your pocket which enables you to make a quick check before making a book purchase. App is well set up with good support screens backed up via first class online support. — Paisley Saint (United Kingdom) on CLZ Books
September 27, 2021
I love this app
We have a ginormous book collection and once I put the time and effort into organizing and scanning all of them, it has been so easy to look up what we have when out. Because of sharing the database, we both can refer to it too. Super easy to use, and we'll organized. We grabbed music version as well. — Nell Ruedin on CLZ Books
September 25, 2021
I updated and thought all my data was lost
Sytske got back to me within minutes and it was solved. Whew. I’m an early adopter and had put a lot of work into the entries, mostly manually. Love the program and the support was there. — Cali iPhone (USA) on CLZ Books
September 24, 2021
Easy to use
Easy to use and great for organizing an architectural firm's collection of books! — Linda T on CLZ Books
September 23, 2021
THE book organization app you want
CLZ Books is THE book organization app you want and need in your life. I downloaded at least 10 apps recently, trying to organize my bookcases. I deleted them all except for CLZ Books. The support is quick and precise. The amount of customization and ease of use simply rose above the competition, and quite beautifully too. — Trinity Pierce on CLZ Books
September 21, 2021
Does it all. Cover to Cover
I had tried a few catalogue apps for my book collection. Most were okay, but they didn’t do everything I wanted, or they were too difficult to manoeuvre through, or just too expensive. Then one day, about 7 or 8 years ago, the one I was using just quit working. I couldn’t even get into it to export what I had already entered in. I went online and found out that it was done, no longer supported, and no questions would be answered. So I went online and started looking. It didn’t take long. I found a reference to Book Collector. This was an app that I could download and it looked like it would everything that I wanted. It was a reasonable price, and so I decided to give it a try.
FABULOUS ! FABULOUS ! FABULOUS ! It does everything I need, and does it well, and smoothly, and with over 3500 books on my shelves, that’s important. Since then I have switched to their cloud service, CLZ Books. I no longer have to use my memory space. I just log in, make entries, deletions or changes and it’s done. The price is still very reasonable. This is the best book cataloguing service of any I have ever used. They also offer apps or cloud service for collectors of Movies, Music, Comics and Games. This team of developers has done and continues to an outstanding job. I would 100% recommend this to anyone who has a library to keep track of. — Ti-Cat Matt (Canada) on CLZ Books
September 20, 2021
Like a Personal librarian, great support!
I have been in the process of moving house and clearing out a family storage unit, thrilled with the books I’m finding, remembering and hoping to organize them all into a great library. I was seriously thinking of hiring a librarian to help me with all this when I found this fabulous app. I am able to seamlessly add volumes by isbn numbers and have manually added obscure volumes, photographing the covers and noting their particular histories.
I have been so eager with the newly discovered app, trying to get up to speed, I quickly asked support for some features that I subsequently discovered on my own. I was pleased to get an equally quick answer to my query— how to print out my lists— and can’t wait to do more. I may still hire someone to help me but with this app I am assured that even a student will be able to do a thorough, professional organizing of my library.
Bravo! Six stars! — intensia (USA) on CLZ Books
September 17, 2021
Au-delà de ce que j'espérais. — S Yanely on CLZ Books
September 15, 2021
You are the best
I could not manage my collection without. I love the option to scan a book in the store and find out if I already own it. Happened a couple of times before I converted my collection to your program. — Frank Bernhardt (USA) on Book Collector
September 15, 2021
Perfect for the classroom!
I love this app! I have been a teacher for 29 years and have been trying to keep track of all of my classroom books. I have over 1,000 children’s books that are now organized nicely with in this app. I love the features of being able to tag the book with key words for future searches. Uploading books is easy and quick. — WileyMom3 (USA) on CLZ Books
September 14, 2021
CLZ Books
He probado varias apps de archivo bibliotecario y esta es la mejor. Funciones casi profesionales a un coste muy bajo y con una facilidad de uso que la hacen apta para cualquiera. — Emilio Alonso on CLZ Books
September 11, 2021
I rely on and trust CLZ
Best software for book collectors. I have so many titles in different formats and different places, i can not keep track without CLZ.It’s reliable, customizable, fun to work with. Syncs perfectly with its PC version. Always improving, and excellent customer service. Highly recommended — MagoryOH (Canada) on CLZ Books
September 10, 2021
Just a short note of thanks
Just a short note to tell you I would be totally lost without your program (Book Collector) with 2000 books on the shelves it would be impossible to know where to find a specific book, and I would finish up with a lot of doubles on my shelves.
Thank you very much. — Mario Sbrana (Australia) on Book Collector
September 08, 2021
Excelente aplicación
Funciona muy bien y tiene un magnífico soporte técnico. — Pemárame on CLZ Books
September 08, 2021
Easy to use system
I finally found an easy to use system for cataloguing my specialist book collection. I am sure I only use a small proportion of its capabilities but it’s straightforward and the customer service is excellent. — Toucan 2oo (United Kingdom) on CLZ Books
September 08, 2021
Great customer service
Great App, Great Customer Service. — Paul Urbanowicz on CLZ Books
September 06, 2021
Great app
Can't Beat the Price or the Functionality. — Jerry Bailey on CLZ Books
September 04, 2021
The program is excellent and the improvements since I first purchased the program are considerable. — S (USA) on Book Collector
September 04, 2021
Loving it
Great app, updated often with new features. Reliable. — Richard Banks on CLZ Books
August 30, 2021
It works!
I just got this app and I love it! It was rocky setting up some of the books I have but didn’t check my email which had a welcome note with clear instructions on how to add books! I contacted customer service with some search questions and received a nice response very quickly. It’s not an automated reply! I even deleted a different book tracking app because this one is easier to use and faster! Feature I like are seeing books I own that are marked read or not read, the ease of scanning. and the folders for categorizing! Oh and the friendly customer service! Thank you! — LisNeal on CLZ Books
August 30, 2021
Textbook catalog
I am trying to catalog my husband’s library of about 2500 textbooks in different languages. I searched all over the web and finally came upon CLZ. This sounded just like what I needed. I emailed them to inquire about this and got a positive answer in less than 24 hours. We bought the app and I started to catalog all the books. By now I have entered about 1150 and moved to the cloud. Every time I had a question I got an answer in less than 24 hours. Their support staff is excellent. This is really a great app and I couldn’t be happier with it. I highly recommend it to anyone who tries to catalog their libraries. — ollldie on CLZ Books
August 29, 2021
Book collection app
Finally a well functioning book collection app! Bonus points for the sync function. — Sylvia Schaffrath on CLZ Books
August 19, 2021
Love the CLZ apps
I have used CLZ apps for years and absolutely love them. — Rosie Fugate on CLZ Books
August 11, 2021
Eccellente applicazione
Completa versatile e personalizzabile (versione desktop). Supporto continuo. Tra i migliori acquisti di "software applicativo" — mario sgobbi on CLZ Books
August 10, 2021
Un team di sviluppo molto disponibile
In assoluto il miglior programma+app per la catalogazione e la gestione delle biblioteche personali. Utilissimo avere sempre a disposizione in mobile le proprie raccolte. Aggiornamenti costanti e un team di sviluppo molto disponibile. — stefano stefanutti on CLZ Books
August 10, 2021
Great book catalogue
Love working with this app. Books can be entered by scanning their barcode, so it’s a powerful bookcataloguing system that’s very quick and easy to use. I make heavy use of options that allow you to personalize the settings and stored details, so it’s tailored to my needs.
Over the 7 years that I’ve used this app, I’ve seen lots of improvements. The developers are in-tune with their customers—if we ask for new functionality, it’s actually considered and often implemented. I even had the owner email me when I had an issue! — Kxt213 on CLZ Books
August 09, 2021
Highly recommended
Easy to use, extremely detailed app that allows me to keep my library nice and organized... not to mention, keeping me from buying the same book more than once. Highly recommended. A++ — Rodrigo Mendonça on CLZ Books

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