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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

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

Downloadable

Downloadable software

  • Downloadable desktop software
  • Install on one PC or Mac
  • All data stored on your computer
  • Sync data to CLZ Cloud (optional)
  • Free CLZ Barry barcode scanner app

Web-based

Web-based software

  • State-of-the-art online software
  • Login and use from any computer
  • All data stored in the CLZ Cloud
  • Automatic updates & backups
  • 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 just downloaded the latest version of Book Collector, and I have to say, it amazes me, how you people continue to improve an already stellar product. I would be absolutely lost with your program. Thank you, doesn't seem adequate for all you do. I wish I could look each of you in the eye, and say thank you in person. Please know that the hard work each one of you do every day, makes my life better. I hope I am saying this correctly,"Heel erg bedankt."
I tell everybody what great products you have and how wonderful your customer service is.
— Keith Petersen (USA) on January 14, 2020

Reviews from customers

February 02, 2020
My book database
When I bought the app it was after a good many years where I had made my own database, just to be sure that I didn’t borrow books from our local Danish libraby, that I’ve already read. I gave it up when I found Collectorz. I combined from the start the PC application and the Android do.
Soon I realized that it was not all of my read books, that I did put up on the DB. But rather books that I wanted to talk with other people, friends and acquaintances, about.
Somehow there’s also a satisfaction with just looking and seeing what you have spent your time with. I mean a book, read, represents hours and hours of time.
I am very satisfied with the Coillectorz.com – and I follow the development of the app carefully. For example the latest I have discovered: the possibility to make categories of your books – that could be periodically read, year by year, or otherwise. — Finn Alring (Denmark) on Book Collector
January 31, 2020
Great help
A great help in keeping track of all my books. — Elizabeth Gingerich on CLZ Books
January 29, 2020
Excellent
Excellent, best yet. Thanks! — Paul Walton on CLZ Books
January 26, 2020
100 books in under an hour
I downloaded this app yesterday to help me scan the ISBN numbers for a ton of books I'm selling on Amazon. I managed to scan around 100 books in under an hour, upload the data to the cloud and then download the book data in CSV format which made adding products to Amazon much faster. This app is so easy to use and well designed. I'm using the free 7 day trial but I'll definitely be buying the 12 month subscription. — Tarik Davis on CLZ Books
January 22, 2020
Love this app
I've tried a lot of these types of apps and this one is the best so far. — Dawn Hetherington on CLZ Books
January 21, 2020
Thank you CLZ!
I am amending my review to reflect the wonderful customer service I have received, as well as the functionality of the app. Of all the apps I tried to catalog my antique book collection, CLZ Books is my favorite. I like all the various data you can input, including reading date and price. My collection is from well before ISBN numbers (being published prior to 1900), so ease of manually inputting all of the data I want is important to me. I did try out scanning on one current book and it worked very well, but I haven't explored that side extensively. Edited to add, I just added a sci-fi/fantasy collection and used the ISBN scanner and was wowed by the plot summaries that came up! It's so fun! — RockyMtnSky on CLZ Books
January 14, 2020
Stellar product
I just downloaded the latest version of Book Collector, and I have to say, it amazes me, how you people continue to improve an already stellar product. I would be absolutely lost with your program. Thank you, doesn't seem adequate for all you do. I wish I could look each of you in the eye, and say thank you in person. Please know that the hard work each one of you do every day, makes my life better. I hope I am saying this correctly,"Heel erg bedankt."
I tell everybody what great products you have and how wonderful your customer service is. — Keith Petersen (USA) on Book Collector
January 06, 2020
Wonderful resource
I LOVE my Book Collector (and with well over 2600 books, I NEED it LOL) What a wonderful resource. I have recommended it to many people. You're all great and so responsive. — Roberta Monteparte (USA) on Book Collector
January 05, 2020
User Friendly
Easy to use, frequent updates, user friendly. — John on CLZ Books
January 04, 2020
Excellent
Had a bunch of my books ruined with a water leak and this app is working quickly and efficiently to catalogue what I have left. — Bonnie Muller on CLZ Books
January 03, 2020
Love this app
Excellent way to keep track of the books I’ve read. Easy to add books to the collection, very few I’ve had to add manually so far. And I’ve read some oddball stuff. I had a small problem when I moved from a monthly to yearly plan and support was very responsive; led me through the fix and got me going quickly. I’ve tried others, free and not, and this app is well worth the price. — Miss Eddyp on CLZ Books
December 29, 2019
Large home library
We are very avid readers and have a large home library. This app keeps a complete list our books so when we are in our local bookstore we are able to see if we already have a copy or not. My only complaint is that not every book is listed in the database so I occasionally have have to manually add a book but that is a very minor inconvenience for what this app does. — Gerald Delgy on CLZ Books
December 28, 2019
My library
I have been using this app for several years. It is continually improving, and provides for a very comprehensive database of my large number of books. Easy to use, add books, and access details of my library. — Steve Harper on CLZ Books
December 25, 2019
Perfect
Brilliant - does exactly what it should and lots of extra features too. — Mary Carpenter on CLZ Books
December 24, 2019
This is just what I needed
I have hundreds of books all over the house. Trying to catalog them manually would be a nightmare. So I find myself buying duplicates (thank goodness amazon tells you if you bought it before).
This app has already helped me work through the first 100 books and when I had a question customer service had a quick and perfect response.
If you have tons of books this is what you need — A Sailor Fan on CLZ Books
December 23, 2019
Excellent app
Excellent app especially if you have the PC program as well. Syncing through the cloud can be manual or automatic and data is backed up. All round really easy to use. Technical support is excellent and prompt. Raised a problem through the app and got a personalised fix within a working day. Thoroughly recommend (and the other collectors apps too). Really useful to have a list to hand on the phone so you avoid duplicate purchases. Regular updates provide new features as well as fixes. — Sam Pringle on CLZ Books
December 22, 2019
Great filtering options
Easy to use, keeps improving, great filtering options. — Byron Williams on CLZ Books
December 22, 2019
Excellent!
Practical, informative, user friendly application for book lovers and readers! In addition of all personal information you can add, it gives you a nice overview on your personal reading interests and helps to keep a history of accomplished readings and it’s content. I recommend it +++! — Zaziezazou on CLZ Books
December 19, 2019
Sehr zufrieden
Alle Infos bestens online abrufbar! Bin sehr zufrieden. — Tadeusz Sienkiewicz on CLZ Books
December 19, 2019
Excellent way to organize your books
With this app, you will always have the titles of the books you have read or want to read in a very organized and easy to use format. No more going to the library or book store and not remembering if you already read a particular book. — Richard from Nevada on CLZ Books
December 19, 2019
Simply the best!
I’m a retired history professor who has a lot of books in my personal library. CZL Books handles everything brilliantly and makes my research so much easier. Not only that, but if you have a question, or problem, the help is prompt and really helpful. Keep up the good work. — masad92 on CLZ Books
December 19, 2019
Magnifica aplicación
Magnifica aplicación para tener catalogados tus libros. — Pemárame on CLZ Books
December 19, 2019
Book library
The app is truly amazing. It’s intuitive and easy to use. Not only has it allowed me to (finally)stop buying multiple copies of the same book, but I’m now able to find the location of a book in my library quickly. — artbookaddict on CLZ Books
December 19, 2019
Fantastic App
I bought CLZ after 15 years of using and maintaining my own custom built database. I couldn’t be happier. Perfect for cataloguing your book collection ! Has custom fields and tons of standard fields. Quickly add books to your collection by scanning bar code or entering titles/authors. Beautifully syncs with browser based and desktop app. Can’t beat it. — Rndmnknm on CLZ Books
December 19, 2019
Easy
Easy to use, especially the barcode entry. — Jeremi Przadka on CLZ Books
December 19, 2019
Great database
Great existing database, easy to add and track your collections. — Justin Merrick on CLZ Books
December 19, 2019
The best book database ever
I have been using it for over 5 years and love it the mobile app is so handy for checking to see if I have the book already in my library. And their support is the first-rate problems solved very quickly. Highly recommend. — woody161051 on CLZ Books
December 16, 2019
Fabulous
Fabulous ,super simple ,easy to use unlike so many things of today’s world. — Bumps tear on CLZ Books
December 16, 2019
Excellent interface
Great layout to keep track of books, movies, music, and more. Never buy any duplicates again! Carry a handy record of everything you own; highly recommended! — Franklin Reed on CLZ Books
December 09, 2019
Awesome app and support
I downloaded this app after trying many book tracking apps. I found this to be the best interface to help get my son interested in reading. The cover flow is a great way for my son to see what he has read and help him to keep track of his favorite books. I love this app and company. — jwiens35 on CLZ Books

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