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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

Mobile app

App for phones and tablets:

  • Install on your phone or tablet.
  • Built-in camera barcode scanner.
  • All data stored on your device.
  • Optional CLZ Cloud storage.
purchase includes all
app updates + online services


Easy to use & easy to manage

  • Login with any web-browser.
  • Free barcode scanner app.
  • All data stored in CLZ Cloud.
  • Automatic updates & backups.
subscription includes all
software updates + online services


Fully customizable and configurable

  • Install on your own PC / Mac.
  • Free barcode scanner app.
  • All data stored on your computer.
  • Optional CLZ Cloud storage.
includes a 1-year Service Plan
(a Service Plan is USD $29.95 / year)

Buy them together and get a discount

CLZ Books
Full App
Book Connect
1 year
Book Collector
Full Version
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 absolutely adore your software, and have had a blast adding my nearly 3,000 books to my database. (I've included a pic of one wall of my library.) It's fantastic to be able to check the mobile app while out shopping, to make sure I don't buy a duplicate of something I already own.
I wish you continued success, which you greatly deserve, because you've nailed it with the library software.
I have recommended your apps to many people – anyone who collects books, music or movies – and will continue to do so, although I think I’m too old to know anyone who collects comics or video games. LOL
— Melissa Bailey (USA) on February 02, 2019

Reviews from customers

April 18, 2019
This app is excellent
It allows me to scan in most of my book collection using the ISBN barcode. A small minority of my collection is not in the database yet, but inputting these is not difficult. Finally, I can download a custom CSV of my library to make a spreadsheet. The app interface is efficient and pleasant to interact with. This is app is an ideal took for a book collector like myself to use to catalog a personal library. — Sean Sovine on CLZ Books
April 15, 2019
Love it!
Been using for year's and am in it all the time. — A Google user on CLZ Books
April 08, 2019
Se você tem livros definitivamente precisa de um aplicativo para facilitar a organização e a localização - e esse não tem concorrentes. Uso versões para Windows, Mac, iPhone e Android, atualizo ou introduzo dados em qualquer um deles e sincronizo via nuvem nos demais. Excelente. — Angelo Salignac on CLZ Books
April 06, 2019
Awesome resource. — Rae Phelps on CLZ Books
April 02, 2019
Great products
Keep up the good work your products tick so many boxes its great. — Andy Mitchell (United Kingdom) on Book Collector
April 02, 2019
Book collection app
Relatively new user but it does pretty much everything I want from a book collection app - was happy to uograde. — David Walker on CLZ Books
April 01, 2019
Love it!
Easy to use plus you can back up info. Exactly what I was looking for. — Nancy Rodriguez on CLZ Books
March 31, 2019
Excelente programa de lançamento de livros. — Fernando Alves on CLZ Books
March 29, 2019
The very highest quality
I am a retired librarian doing a favour for an old friend. And I have to say that, from day one, I have found your software to be of the very highest quality. Congratulations on a superb product!
I should also add that I have found your after-sales service team to be most helpful and efficient.
All Good Wishes for the future (and for Ajax!) — Richard C-H (United Kingdom) on Book Collector
March 29, 2019
So far enjoying using this app. Purchased it today only. — A Google user on CLZ Books
March 28, 2019
Editing existing books is fast, the search function is fast and better targeted than before, the overall look is an improvement, and being able to see the collection on different devices is great. — Harry Andrews (United Kingdom) on Book Collector
March 26, 2019
Beyond expectations
Added the books version to my CLZ stable of products. CLZ works beyond my expectations. — gavin8r on CLZ Books
March 24, 2019
Great resource
Easy to use and a great resource! — Mary Jarbeau on CLZ Books
March 23, 2019
If in Australia I would only use the cloud version. But I particularly like the way the phone apps, the cloud data as well as the laptop data base all sync so easily.
Having had 5 friends in different locations add to the the library over the past few months we would conclude overall that the software is very good. Each individual found their preferred way to add books and search for covers. Any questions we had we were so promptly answered... this gives such confidence in the quality of the software and its future development. When I get to the school in Kenya it will be interesting to to see if the situation is going to be suitable to do all the school borrowing from the laptop library data base. Electricity for charging can be intermittent. We may need a paper system as well. — Max Sargent (Australia) on Book Collector
March 23, 2019
Just perfect
Great book database. Best people to deal with. Help is never a problem. — A Google user on CLZ Books
March 21, 2019
Thank you!
I'm really pleased with the program, and appreciate everyone's hard work in developing and maintaining the application. Please tell the whole team 'Thank You' from me. — Bruce Rose (USA) on Book Collector
March 20, 2019
Easy to use. Worth the cost. — A Google user on CLZ Books
March 17, 2019
Best Book Organizer on the Market
I’ve tried two other apps to keep track of my huge book collection and have been disappointed... until now! Finally, someone who gets it! Easy input by scanning the ISBN barcode (for most books), or typing in the title. Contains more information than other apps by linking to the Library of Congress. User friendly in that all data can be manipulated to meet specific requirements. Thumbnails are included and can be changed if needed. Pick lists are editable, too. Try it, you’ll like it! — Consumerpaul on CLZ Books
March 10, 2019
The best
Waited a long time to get started - this is the best!! — Darrel Rogers on CLZ Books
March 08, 2019
Great stuff
You've added the resize window to image for every image, wicked! I nearly missed it as it wasn't mentioned in the "what's new" and fixed all those damn toolbars too. Really great stuff and thanks to all. — Geoff Owen (United Kingdom) on Book Collector
March 07, 2019
Working out great!
It's about time someone came out with an App that will organize my entire book and movie collection! This is working out great! — Robert Corns on CLZ Books
March 06, 2019
Very easy to use
I've only just started using this app, but I like it so far. It seems to work well for my needs. — Kimberly Harkins on CLZ Books
March 05, 2019
Great app
This app is pretty great. I only use it to track the books I’ve read not necessarily books I actually own. I found buying books kinda of wasteful so I just borrow books from the library. — mmw604 on CLZ Books
February 28, 2019
Handy app
Easy to use and Oh so handy. — Damien Adams on CLZ Books
February 25, 2019
This has saved so much time. It has made shopping for missing books in a series painless. — A Google user on CLZ Books
February 21, 2019
Makes inventory easy!
Excellent app!!! — A Google user on CLZ Books
February 19, 2019
Super easy to use
This app lets me keep track of all the books i own and its super easy to use. This keeps me from buying duplicates. I highly recommend for anyone who has a lot of books. — A Google user on CLZ Books
February 19, 2019
A great app
I bought this up as a surprise for my husband (a voracious reader). I decided to create a digital catalog of our home library and it makes life so much easier. A great app and a great customer support team! — Olga.I.A on CLZ Books
February 14, 2019
I love this app
Before CLZ, many times I did not know what I had when I went out to buy books, comics, etc. Now I have the option of checking my collection instantly to prevent any purchasing mistakes. That is invaluable to me as a serious collector. It's uses continue to improve my collecting life a few years after first getting this app. — A Google user on CLZ Books
February 13, 2019
Been using these for years on the PC, so glad it's available for the phone too. — Kerry Maguire on CLZ Books

Read more reviews from customers