Library Software
Catalog your book library
Automatically download book details and imagesLike author, title, publisher, genres, subjects & cover art.
Just search our huge online book database ... ... by ISBN or by author & title.
Over 40 million ISBNs recognizedGuaranteed 97% success rate on your ISBN searches!
CLZ Books
Mobile
Mobile app for your phone or tablet
iOS & Android
iOS & Android
USD $19.95
per year
More about the mobile app
CLZ Books
Web
Web-based software for your computer
Windows & macOS
Windows & macOS
USD $39.95
per year
More about the web app
CLZ Books
Mobile + Web
CLZ Books Mobile
1 year
CLZ Books Web
1 year
USD $0.00
USD $0.00
save USD $0.00
Or... use them both,
as perfect companions!
Both CLZ Books Mobile and CLZ Books Web 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 Mobile on your phone, then use CLZ Books Web 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.
Latest software updates
v10.0: Read ISBN numbers with OCR!
Nov 14, 2024
Sneak Preview: CLZ Books 10.0 – Add books by reading ISBN numbers with OCR
Nov 08, 2024
v9.4: New app icon to fit our new company name and logo
Oct 12, 2024
v9.3: Several improvements and fixes
Sep 27, 2024
v9.1: CLZ Books is now free to use up to 100 books
May 31, 2024
Nov 16, 2024
An excellent app
I have used this app for over a decade and it just continues to get better and better. I highly recommend it if you have a library of books to keep track of.
Reviews from customers
Nov 15, 2024
User-friendly for all age groups
Finding this app at 63 was a blessing. I have an extraordinary library and continue to collect, yet sometimes you find out you already have the book. This app has been helping me keep track of my existing library and when shopping, I pre-scan the book to ensure I don't own it. Thank you.
Nov 8, 2024
Lifesaver
I would just like to thank you for your marvelous Book Collector application. It has been a mainstay that helps me manage my book library for many years now. The flexibility is incredible and accomodates my changes in the way I access and use my books. I am about to finish my MA degree and during my school years I used this application to quickly find books on topics I was doing research papers about. It has been a lifesaver!
Blessings on you for creating and maintaining this application.
Blessings on you for creating and maintaining this application.
Nov 6, 2024
Useful tool
My wife is the library committee chair for our retirement community and we have used CLZ Books as our catalog for our 1600 books. it gives us many useful tools for this activity. We know what we have in our collections so we can check donations for duplicates. We use it when we order or shop for books to ensure that we don't purchase duplicates and waste our limited funds. The fact that we can see our cloud library on all of our devices makes this available anywhere and for both of us.
Aug 21, 2024
The best I have found
I have over 1200 books and have used a number of catalog apps over the years. CLZ Books does the job of keeping track of my library and gets syncing right. Most importantly (speaking as a software developer) they keep improving the app. It’s tough to make a business of niche software products. These folks have apparently figured out how to make a go of it and they keep improving. Kudos to them!
Jun 17, 2024
Highly recommended
The app does a great job of keeping track of my library. It's easy to add books, and to keep everything synced with my CLZ account in the cloud. Great support as well. I recently had an issue with the app (I couldn't add a new book), and the support team worked with me until the problem was resolved.
Jun 11, 2024
Easy to scan and upload
Started with CLZ on the computer storing all the wife's books in her library, after a few walks back and forth II downloaded mobile app and haven't looked back, easy to scan and upload.
Apr 27, 2024
Outstanding
Outstanding Library Organizational Tool!
Apr 15, 2024
Great software
I’m a long-time user of Music Collector, thought I should finally catalog my book and music score library. That 7-day trial with Book Connect has made data entry much easier. Once I get my collection in, the mobile app will probably serve my purpose. We’ll see!
Thanks for the great software. Feeds my OCD challenges.
Thanks for the great software. Feeds my OCD challenges.
Oct 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.
Aug 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.
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.
Jun 8, 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.
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!
May 28, 2023
Easily 5 stars
Makes tracking your book library as easy as it could possibly be.
Feb 20, 2023
Library
Great way to keep track of my written library.
Jan 4, 2023
My llbrary
Great way to keep track of my library.
Aug 17, 2022
Great app, great team!
I have been using this app for at least four years. The use is intuitive, the acquisition system is quick and the database is extremely well-stocked. The cards have an incredible variety of data with high customization. Furthermore, the support in case of need has always been fast and decisive. I highly recommend it for those who want to keep their library in order.
Jul 30, 2022
Your library in your pocket
User friendly app to keep track of books, music, and more. Know what's in your media library and avoid duplicate purchases. You can even create a wish list for items to add to your library. Works on a desktop computer as well as a smart phone.
May 22, 2022
Perfect to keep track of everything
Downloaded the trial and started adding books, upgraded to yearly subscription within 1/2 hour! Most of my library is packed away for a bigger house so this app is perfect to keep track of everything I have and don't have as I keep going with my collection. The book Nerd and organiser in me LOVES this app!
May 18, 2022
Love it
So easy to use! So great to finally be able to catalog our library..and find when we have more than one copy of something!
May 6, 2022
Book library
I recommend Collectorz to all the collectors I know and my father-in-law loves it for keeping track of his extensive book library.
Mar 29, 2022
Love Book Connect
Many thanks as always for your kindness and generosity. I have always appreciated working with you.
A real blessing to me to keep my library in shape. You have a GREAT product in Book Connect, and I can be assured that all your other offerings have the same high degree of excellence.
At age 82, I really appreciate the simplicity and completeness of Book Connect.
A real blessing to me to keep my library in shape. You have a GREAT product in Book Connect, and I can be assured that all your other offerings have the same high degree of excellence.
At age 82, I really appreciate the simplicity and completeness of Book Connect.
Feb 26, 2022
Book Collectorz is one amazing application!
I've been using it now for a few years to manage a 1000 book library collection for my quilt guild. What I really love is that the Collectorz team is constantly making improvements to the app that make it easier and faster for the user to manage their collection. The team is responsive and genuinely interested in what their users have to say about the program. The app is simple to use, and very intuitive. You can slice and dice your collection in any way you want to see what you have, and there are a lot of customizable fields if you have specific interests. The connection to "core" is flawless, and simply by putting in the ISBN from the back of a book you get all the information you need in seconds. The price is very reasonable for the value you get from this app.
While I haven't used their other products, I'm sure they are just as refined and useful. Thank you CLZ team, great job!
While I haven't used their other products, I'm sure they are just as refined and useful. Thank you CLZ team, great job!
Jan 27, 2022
Great App Organizer
I am an avid reader and collector. I never thought to have a catalog system for my books. After using this app to get an idea of my library, I found that I purchased several books twice. Donated those to the local library.
Jan 3, 2022
Great tool for your library
Just started with the app. Very user friendly and gives you clear overview of your book library in various views, along with some other characteristics of each of your books.
Dec 9, 2021
Accurate and user-friendly
This is an excellent app that provided me with the means to create a decent inventory of a small school library. It is very accurate and user-friendly and I am able to create new titles, link existing ISBN's and access my numbers instantly. Highly recommended.
Dec 5, 2021
School library
We have catalogued our full school library this year and found the Connect platform to be very useful. Our favorite feature is the picture of the cover of the books. Teachers can quickly identify what they are looking for from our printed index. We're excited for our library to grow.
Nov 15, 2021
Great Tool, Easy to Use, Cross Platform!!
Love this app! I’ve been using it for several years and it just gets better and better. I volunteer at the Friends of the Poway Library Bookstore, and recommend it regularly to patrons. Like it so much I also bought licenses for their Movie App which I also love! Running both on my PC, iPad and Samsung Galaxy Note 8 phone and they sync flawlessly. Updates are quick and easy and support is really impressive. I wish more Apps worked this well and had this level of support!
Nov 4, 2021
Works like a charm!
We use this as the card catalog for our retirement community library.
Sep 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.
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.
Sep 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!
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!