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Keep track of your book collection - just scan ISBN barcodes

Automatically download book details by ISBNLike author, title, publisher, genres, subjects & cover art.
Just search our huge online book database ... ... by ISBN or by author & title.

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

Reviews from customers

November 05, 2019
CLZ Books
Having taken the time to evaluate this app I can honestly say it is a great way to keep track of your ebooks. Sure it is laborious entering the details if like myself you have thousands of books but believe me it is worth the effort. I love the fact that I can open the book details and see when I purchased it and when I last read it. The support you get is first class, any problems just email and you get a fast response. Highly recommend this app for all bookworms out there like myself. — Kerig Girl 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 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
Awesome
Awesome for keeping track of my books. — Joseph Duffy 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
July 22, 2019
Great!!
Great app to keep track of your collection with many extra options! — Vanemst on CLZ Books
July 20, 2019
Cool app
Great way to keep track of books. — Bonnie Moul on CLZ Books
July 19, 2019
Great app
Great app for keeping track of my books. Had a problem at the start that was quickly solved. Very quick to respond to my query.
Happy — Nanuke12 on CLZ Books
July 15, 2019
Cool app
Perfect for keeping track of book collections large and small. — bob rae on CLZ Books
May 03, 2019
Excellent app
Great for keeping track of books Barcode scanner is worth it. Good online database for manual search too. — Barry Powell 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
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
January 29, 2019
Keep track of my books
The best thing ever to keep track of your books especially in the bookstore so you do not buy duplicates. — Karen Radatz on CLZ Books
December 16, 2018
Keep track
I really enjoy Book Collector - it is so nice to be able to keep track of all the books we have! — F. Fernandez (USA) on Book Collector
November 12, 2018
Love this program
I do love this program to keep track of my books. I love reading. This has helped me not buy duplicates (partly why I want kindle books added to my list). Been known to buy a book twice because forgot already purchased it. Lol. Now I can look it up on my phone so I don’t do that. — Sara J (USA) on Book Collector
November 05, 2018
I love this program
I've been using Book Collector for 2 years now and I've finally gotten my ebook inventory completely entered. I know I often contact you with questions, suggestions or bug reports, so I wanted to take the time and let you know how much I love this program. I looked for a long time for a catalog/database program that would let me enter the info I wanted to keep track of. Your software more than fits the bill wonderfully. The fact that I can customize so many fields to match my needs is fantastic. — Brenda Claussen (USA) on Book Collector
November 05, 2018
Great product
Great product, super duper support. I love this application for keeping track of my library. — Mary R (USA) on Book Collector
October 21, 2018
Would recommend this to anyone
I just want to say I really like keeping track of my books and keeping them in order even when i'm not around!
I would recommend this to anyone who loves books as much as I do! — Ainsley Marie Helgerson (USA) on Book Collector
October 19, 2018
It’s AMAZING!!
I have a HUGE collection of books and this helps me keep track of them even when I’m not at home! I would recommend this to anyone who has an amazing collection of their own!! Best app ever!! — bdjedj on CLZ Books
August 31, 2018
Worth it
Very helpful with keeping track of your home library. I usually don't buy apps but it's been worth it. — Eryn Davis on CLZ Books
July 05, 2018
Fantastic app
Fantastic app that helps me keep track of all my books in an orderly way. I find it most useful when shopping - a quick glance and i can see whether i, or a family member, already has a book! — A Google user on CLZ Books
July 02, 2018
Love this app
The app makes it easy to add books and keep track of what I have. I am loving the way things work. — Thomas Lee on CLZ Books
April 10, 2018
Keep track
I literally have over 1000 books and trying to keep track of them all is a task. Collectorz takes the worry away. — Kim McCoy (USA) on Book Collector
February 27, 2018
Great tool
Great tool for keeping track of my books. As I'm entering them into the system I am finding quite a few duplicates that I can sell & get new books. — A Google user on CLZ Books
January 25, 2018
Must have for any collector
I use this app to keep track of my tabletop RPG collections. Makes it so much easier. I also use the comics and games version. A must have for any collector. — Kristopher Orcutt on CLZ Books
November 13, 2017
Wonderful App
This is a great app. I’ve used it for several years to keep track of books I’ve read. Since I’ve read over 900 books it’s important to me to be able to see which books I’ve already read. I’ve had absolutely no problem with this app. My list syncs perfectly between my iPad and android phone allowing me to review my books on either device. — GrandPuppy4 on CLZ Books
September 27, 2017
Keep track of my books
This app let's me keep track of books better than any other app or software that I know of. — Wyatt Kiefling on CLZ Books
August 19, 2017
Great app
Great app for keeping track of my book collection. — David Rose on CLZ Books
August 08, 2017
Makes the lending of books a breeze
As Library Coordinator for our chapter of a national environmental organization I use Book Collector to stay organized. The software makes the lending of books a breeze. We have over 230 books which some of your respondents would scoff at but, since I haul the books to monthly meetings, it is plenty big enough.
I value Book Collector highly and rely on it to keep track of all details of running a much used chapter library. Thank you and keep up the good work! — Virginia Watson (USA) on Book Collector
July 06, 2017
Love this app
Great for keeping track of have/need list for fav authors. — Zepo132 on CLZ Books

Read more reviews from customers