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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 phones and tablets

  • Access your collection on the go
  • Install on multiple phones/tablets
  • All data stored on your device
  • Sync data to CLZ Cloud (optional)
  • Built-in camera barcode scanner
pricing
subscription includes all
app updates + online services

Desktop software

Desktop software for PCs & Macs

  • For advanced computer users
  • Install on your own PC or Mac
  • All data stored on your computer
  • Sync data to CLZ Cloud (optional)
  • Free CLZ Barry barcode scanner app
pricing
subscription includes all
software updates + online services

Web-app

Web-app, fully cloud-based

  • Easy to use, easy to manage
  • Login and use from any computer
  • All data stored in the CLZ Cloud
  • Automatic updates & backups
  • Free CLZ Barry barcode scanner app
pricing
subscription includes all
software updates + online services

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

Great product for book collector. If you got books this is the best way to record them. I use it across an iPhone, iPad, MacBook, and Mac desktop. Seamless. The flexibility of the program is so great that you can record your books in a fashion that highlights what is important to you. You are not pinned down to a specific method that some geek programer in a back room who never owned a book thinks you should use to record your collections. It has flexibility.
Further and just as important or maybe more important is the customer service. I have had this product for 5-10 years and have consistently received the best customer service in the business. Every email is answered. First they understand your question and then they answer it. Other software customer service people do not understand the question, and then give you an answer from some script that the mother ship office directs them to use regardless of whether it answers the question or not. Not so here. These guys are terrific.
The best in the business. Buy the product.
— mathiasuppercove (USA) on September 28, 2019

Reviews from customers

October 30, 2019
Fantastic support
I needed to change, the app I was using to record my reading history was letting me down badly and with nearly 1500 books recorded I had to find a way of transferring my records over into a new app. Alwin at CLZ certainly came up trumps, taking me (a very un-techie silver surfer) through the process step by step. This app really works, is very user friendly and seems to do the job I want it to do. Highly recommended. — Carolintheforest on CLZ Books
October 28, 2019
The absolute best product I have ever bought
I have had Collectorz for several years with a collection over 2,600 books. This app is superb in enabling me to manage my books and all details as to the seller, price, edition and series etc. I also have it on my iPhone and check the app before I purchase any further books. The help component cannot be faulted and even living in Australia any query is answered almost immediately and followed up till I have sorted any it out. This is the best purchase I have ever made and for a book nut it is highly recommended to anyone with a collection, small or large. My thanks to all the staff. — Phil Sutton (Australia) on Book Collector
October 26, 2019
Great app
Great app to easily organize all your book collection. All my books are available go me on a quick and easy app. — A Google user on CLZ Books
October 23, 2019
Easy
Easy way to keep track of my collection. Will be a big help at future book sales. — Michael Cody on CLZ Books
October 21, 2019
Well done!
Perfect and easy. — James Vernon on CLZ Books
October 20, 2019
Love these apps
These are great apps. I love em. But it would be pretty cool to maybe combine them into one app as well. So that there is one app for all of it instead individuals. — Princess Pepper on CLZ Books
October 19, 2019
CLZ Books
I purchased my CLZ Book Collector mid-2005 to inventory my late husbands book collection which is now over 4000 and counting. First, I have to compliment the CLZ support team for their immediate and helpful response over these years to any inquiries, technical or otherwise. I recently purchased the CLZ Book app. I look forward to utilizing as going through my collection on the app I can maneuver easily, access any title, author, and readily add to the collection. The app provides convenience and flexibility away from the laptop. Props to the CLZ team who continually work to improve their product for the benefit of their customers. Cheers! Camilla — Props to CLZ on CLZ Books
October 18, 2019
Book Collector and CLZ
We subscribed to Book Collector over 15 years ago and had very good support from the company. We have since switched over to CLZ because our desktop computers have aged with us. We have had very prompt and succinct responses from their President, Alwin Hoogerdijk regarding our questions and concerns. We are very excited about the new App, since we can now use our iPad camera to catch each ISBN number that then gives you all the information you need and a beautiful cover picture for each book. We will finally be able to complete our collection without duplication of titles, and locate each volume quickly for reference, all in the palm of our hands.Thanks Alwin! — Wycinanki on CLZ Books
October 16, 2019
Love it
Excellent app for keeping track of your books, especially if like me you have bookcases all across the house. Ideal for looking up what you have from which author and if you have that title. — Paul Goodison on CLZ Books
October 14, 2019
The quality of your work
Almost every time I open Book connect, I find improvements and new features. Just want to express my appreciation, as a steady user, for the quality of your work.
Many thanks and keep it up ! — Guy Dauphinais (Canada) on Book Collector
October 14, 2019
Awesome
Awesome for keeping track of my books. — Joseph Duffy on CLZ Books
October 13, 2019
Intuitif
Pour ne plus jamais acheter de doubles, intuitif, facile et rapide. — olivier bequet on CLZ Books
October 11, 2019
DE oplossing om mijn boekenverzameling overzichtelijk te houden
Al heel lang verzamel ik pop-up boeken..Eerst wist ik nog wel welke ik al had en welke niet, maar toen ik dubbele ging kopen maakte ik in Excel een bestandje en printte dat uit en nam dat elke keer mee....aangevuld met handgeschreven informatie. Maar toen ontdekte ik Collectorz.com, echt geweldig!!!!!!
Alle boeken staan er (bijna) en nu kan ik zelfs met mijn telefoon in de winkel zien of ik een boek al heb door het isbn te scannen. Ontzettend blij ben ik er mee , het is heel gebruiksvriendelijk en jullie support is ook snel en adequaat, als het nodig is. — Anneke Eggink (Netherlands) on Book Collector
October 11, 2019
App is great
Support very quick and efficient. I used to use the programme years ago but find it has proved greatly over the years. Can certainly recommend it. — Howard Lawless on CLZ Books
October 10, 2019
CLZ books works excellent!
I have been using CLZ music since a year or so and decided to try also CLZ books. Despite an initial issues with synchronization (solved by the excellent customer support provided by the vendor) the app works very well and I am looking forward to continue to catalogue my books collection books in the app. — Eriksve on CLZ Books
October 08, 2019
Utterly first class
Your app and backup are utterly first class. In fact so professional I am 100% supportive even though its just my home library of 2000 ish books it is wonderful to use and explore. — Mike waterfield (USA) on Book Collector
October 07, 2019
The best
I’ve been slowly editing my CLZ Database of books. Correcting typos, retaking photos, adding my own thoughts, removing some genres and subjects.
I must say this is the best database in the market. — Paul Morrow on CLZ Books
October 07, 2019
Perfect
Perfect app, makes things so much easier! — Rob Conley on CLZ Books
October 06, 2019
Excellent
Just what I was after. — Philip Spedding on CLZ Books
October 05, 2019
I really like this app
It keeps track of the books I've read in an organized fashion. I can add my comments, rate, and date the books when I finish them. I recently had some difficulty logging into my app so I contacted Support. They were very helpful and stayed in contact with me until we worked out my problem. I highly recommend this app. — Jan Adamson on CLZ Books
October 02, 2019
Klasse
Einfach Klasse auf jedem Gerät. — Oskar Schönherr on CLZ Books
October 02, 2019
Can keep track of all my books
Also it is great that I have the list of book borrowed from the library so I do not bring away duplicates of ones I have already read. — Barbara Leonard on CLZ Books
September 28, 2019
Best product and customer service
Great product for book collector. If you got books this is the best way to record them. I use it across an iPhone, iPad, MacBook, and Mac desktop. Seamless. The flexibility of the program is so great that you can record your books in a fashion that highlights what is important to you. You are not pinned down to a specific method that some geek programer in a back room who never owned a book thinks you should use to record your collections. It has flexibility.
Further and just as important or maybe more important is the customer service. I have had this product for 5-10 years and have consistently received the best customer service in the business. Every email is answered. First they understand your question and then they answer it. Other software customer service people do not understand the question, and then give you an answer from some script that the mother ship office directs them to use regardless of whether it answers the question or not. Not so here. These guys are terrific.
The best in the business. Buy the product. — mathiasuppercove (USA) on CLZ Books
September 26, 2019
CLZ Books
Clear, easy to use interface with extensive customization options. The few times I've reached out to support they have responded quickly and effectively. — Seth Wilpan on CLZ Books
September 25, 2019
No more duplicates
Love this app to make sure I don't buy dupes. — Michael Manning on CLZ Books
September 24, 2019
Easy to use
Love it! Very easy to use! — Aaron K on CLZ Books
September 23, 2019
Highly recommended
I have been using this app for several years and it just gets better. I had a problem today which I raised with CLZ Support. Within a few minutes, I was in contact with Alwin Hoogerdijk (the head honcho of CLZ) who guided me through the steps which restored my database of over 1500 book titles in very quick time. I'm VERY grateful and recommend this app wholeheartedly! — brian reeds on CLZ Books
September 21, 2019
Essential app
Absolutely essential for keeping track of what books I have or what I want! — Dennis Griffin on CLZ Books
September 20, 2019
CLZ Books App
I love this app. I have also recommended to many people. I find most all books old and new are in the data base. I have had to manually enter the odd book. I love it as when I am on the go I can check also what books I have already. I “had” a habit if buying the same book again. IKR Crazy! I have over 1600 books and added them quickly and seamlesly. Thanks guys and gals at CLZ. — Tarahthemedi on CLZ Books
September 20, 2019
Wonderful
Great app. I love it. — Catherine Bell on CLZ Books

Read more reviews from customers