Welcome to CLZ!

CLZ is THE collection database software!

Easily catalog your comics, movies, video games, music or books.

Work on your phone or computer and sync data between them.

Reviews from CLZ users

Nov 8, 2024
Wonderful and detailed program
Thanks for the email. I am loving the program. I have collected comic books for almost fifty years, including being a comic book dealer in the 1970s & 80s.
This is the database I wish I always had. My collection has been sitting dormant in storage for many years and I am now getting great enjoyment cataloging and rediscovering my years of collecting.
Rob Gore (USA) on CLZ Comics Mobile
Nov 7, 2024
My libraries organized
Thanks for making such programs, they really help keep music, movies and book libraries organized.
Errol Hunt (USA)
Oct 24, 2024
Amazing
Really appreciate your amazing customer service.
Maryann C. (United Kingdom)
Oct 20, 2024
5 stars!
Great app. Very helpful and great support. This is the premier way to track and value your collection.
Donald Riley
Oct 18, 2024
High level of customer service
I wanted to thank you very much for the credit you have issued to me and the clarification of what I should be purchasing in the future. If all companies had the same high level of customer service as Collectorz we would be a lot better off.
Larry F. (USA)
Oct 14, 2024
Great app!
Great app with stellar customer service.
GamingCritic955 (USA)
Oct 13, 2024
Top class support
I just want to say that your support has been fantastic, you have been excellent and I really appreciate the time, effort and patience you have had with this.
Top class support. Thank you so much.
Richard (United Kingdom)
Oct 10, 2024
CLZ is a great product
Thanks so much for you quick response to my question. CLZ is a great product that contributes to my enjoyment of my collection.
Scott Hornsby (USA)
Oct 7, 2024
Quick service
The process you suggested worked!
Thank you for quick and knowledgeable service.
George Dyer (USA)
Oct 3, 2024
I am a fan
I’ve long been a fan of your company’s software and end-user services. Now I’m a fan of the customer-support team, too.
Bill B. (USA)
Sep 27, 2024
The best software support
I had been using “Music Collector” (PC version) for about 2 years and recently was having some issues when I added new albums to my inventory (I have about 1,500 albums either on CD of Vinyl LP.) I contacted Collectorz.com user support and then heard back from Anthan-John (AJ) for assistance. We must have exchanged emails about 5x (note I am on the East Coast of the USA and Collectorz.com is located in Amsterdam, the Netherlands) and of course there is a 6 hour difference as they are ahead of me. I did not expect to hear from them until the next day. The next day I received a response and each day after I sent additional info to AJ I heard back the next day. AJ suggested I might want to try the internet version of their software “Music Connect.” I gave it a try and then switched to it because it is a lot easier to add an album and they have my inventory on their server. I can also back-up for inventory on my PC, an external drive or export it to a CV file if needed.

I also use their Android version on my Galaxy S20FE 5G so I can check my inventory as I am shopping for an album, so I don’t purchase one I already own.

I also must say that AJ & Alwin Hoogerdijk, owner and founder of Collectorz.com, provide one of the best software support I have had in years. (I have been using computers since 1986). So if you are concerned about support don’t worry they will always have your back and the annual subscription is extremely reasonably priced.

DWB (USA)

Latest CLZ news


A big v10.0 update is coming up for your CLZ Books app within 2 weeks, so here’s a Sneak Preview!

CLZ Book 10.0 will bring a vast improvement to the Add Books by ISBN feature!
Previously the scan screen could only scan ISBN barcodes, but v10 will also “read” ISBN numbers that are printed on the book using OCR (Optical Character Recognition).

Read more


New Comic Book Day is here once again. This week we prepared 216 new issues with 500 overall releases.

Absolute Superman #1 has landed! Jason Aaron is here to bring you his twist on the last son of Krypton, Rafa Sandoval (artists) & Ulises Arreola (colorist) as the artists. This title completes the Absolute Trinity within this new universe. If you’re hungry for more, there are more Absolute titles on the way!

Five years ago Image Comics brought us a new horror title. Today they are here with a prequel comic Something is Killing the Children #0. James Tynion IV and Werther Dell’Edera are giving you an untold story within the Slaughterverse, detailing the mission preceding the fateful Archer’s Peak Saga, where the entire story began.

Aliens vs. Avengers is a series that you don’t want to miss out on. Here with #2, Esad Ribić is able to expand the Marvel Universe mapped out by Jonathan Hickman with his artwork. This story continues on the Alien mythos, with a twist….
Happy Reading!

Read more


We’ve fixed various crashes that happened throughout the app that.. shouldn’t happen anymore with this new version 🙂

We recommend you update your app A.S.A.P. Your app may have updated itself already (check the menu top left, the version number is at the top). If it hasn’t updated itself yet, here’s how to force the update:

  1. On your device, open the Play Store app.
  2. Search “CLZ” and select your CLZ app.
  3. Tap “Update” to update the app.

We’ve fixed various crashes that happened throughout the app that.. shouldn’t happen anymore with this new version 🙂

We recommend you update your app A.S.A.P. Your app may have updated itself already (check the menu top left, the version number is at the top). If it hasn’t updated itself yet, here’s how to force the update:

  1. On your device, open the Play Store app.
  2. Search “CLZ” and select your CLZ app.
  3. Tap “Update” to update the app.

We’ve fixed various crashes that happened throughout the app that.. shouldn’t happen anymore with this new version 🙂

We recommend you update your app A.S.A.P. Your app may have updated itself already (check the menu top left, the version number is at the top). If it hasn’t updated itself yet, here’s how to force the update:

  1. On your device, open the Play Store app.
  2. Search “CLZ” and select your CLZ app.
  3. Tap “Update” to update the app.

We’ve fixed various crashes that happened throughout the app that.. shouldn’t happen anymore with this new version 🙂

We recommend you update your app A.S.A.P. Your app may have updated itself already (check the menu top left, the version number is at the top). If it hasn’t updated itself yet, here’s how to force the update:

  1. On your device, open the Play Store app.
  2. Search “CLZ” and select your CLZ app.
  3. Tap “Update” to update the app.

Fixed:

  • Add Albums: Tracks, Label, Release Year and Barcode were missing from the add sheet
  • Fixed a couple of startup crashes
  • Small tweaks to the app icon
icon
CLZ Comics Mobile

NCBD: The 10 most anticipated comics for week 45

Nov 04, 2024

This top-10 is created by you all, the users of the CLZ app and software, as it is based on how often these comics already appear on your wish lists in the CLZ Cloud, even before release!

Read more


CLZ Alwin here, bringing you the CLZ newsletter for October 2024.

This month was all about our name change (we are now “CLZ”!), our new website, new app icons and new names and URLs for the web-based software. This big change has been cooking for a long time and we are super happy it is finally all live now!

Most of the team has been involved in this big “renaming” project, as we have been updating all sites and products. And we’re still not done. You can expect to see minor tweaks to the look and feel of our sites, fixes to our documentation, etc…

While all that was going on… our mobile team has been quietly and secretly working on a major new feature for the CLZ Books mobile app: OCR scanning of ISBN numbers!
A great way to add books that do not have barcodes, but DO have an ISBN listed on the book. Read on below for more details.

This is what we have been working on in October:

  • We are CLZ!
    • Collectorz.com is now “CLZ”
    • New logo and new website
    • New app icons for all 5 CLZ Mobile apps
    • Connect is now called “CLZ Web” and is now at app.clz.com
  • Coming up:
    • CLZ Books 9.5: Scan ISBN numbers with OCR!
  • CLZ Core updates:
    • Core for Games: “Check Covers” project, FINISHED!
    • New Core for Games project: a better Hardware database
    • Core for Movies: “Check Covers” project, 81.75% cloud coverage!
    • Core for Comics: New Comic Book Day summary, 2,493 new releases

Read more


Fixed:

  • When editing a series, personal viewing dates for episodes weren’t loaded correctly