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

Feb 13, 2026
Just What I Needed
Easily catalogue your book collection with a large number of categories to record all relevant information. Makes for easy referencing when your book hunting to not only know if you already have a book but also whether your copy has all the same features.
GradyB58 (USA) on CLZ Books Mobile
Feb 7, 2026
Superior customer service
I have been using Collectorz products for several years. They constantly improve their products and provide superior customer service. Highly recommended! 10 years on I am still a completely satisfied customer!
Brian J Munro (Canada)
Jan 27, 2026
Excellent!
Thank you so much for your support. My experience with this app has been out of this world. I’ve been searching for something like this to help me with my collection.
Adam L. (Canada)
Jan 27, 2026
Support
Great app and support is great!
David Liban (USA)
Jan 19, 2026
Thank you so much for your assistance
CLZ has been so easy to use and this is the first time I have had any problem and couldn’t be happier with the outstanding customer service. My issue was addressed quickly and clearly.
Jodi (Australia)
Jan 19, 2026
Excellent customer service
I'm writing to let you know that I genuinely appreciate the excellent customer service.
Matt F. (USA)
Jan 11, 2026
Impressed
I appreciate the support. The app is great, whether it's Windows or Android. I'm really impressed.
Mark A. (USA)
Jan 7, 2026
Awesome
Wow! You guys are awesome! Thank you so much! FYI, I really enjoy the mobile app. Making hunting so much easier. Thanks again.
Ben T. (USA)
Jan 6, 2026
Great support
Outstanding app, great support along with it.
Jack n Connor (USA)
Jan 3, 2026
My entire collection cataloged
For the first time in years, I will have my entire collection cataloged. I had a question regarding a minor issue and customer support responded quickly and was able to help me out. I would definitely recommend.
Chad Lynema (USA)
Dec 30, 2025
Worth every penny
This app (and the company behind it) is incredible. It is constantly getting new features, fixes, and improvements. This makes it easy for me to catalog and track my collection (and the missing pieces I'm hunting for).
Tom Callaway (USA)

Latest CLZ news


Lots of fun books to choose from this week. From continuous issues to new number ones. NCBD has it all! Here are a few books that were hand picked by our content managers:

It’s time to cue the music, it’s time to dim the lights. It’s time to get things started as the Muppets return tonight! Legendary cartooning talent and Muppets comics veteran Roger Langridge bellies up to the drawing table once more for an all-new tale of crime and pun-ishment with The Muppets Noir #1, where he’s going to have to solve the baffling mystery of the Snoozing Sleuth. Check that wonderful Declan Shalvey cover!

Who doesn’t love Marvel’s baby shark? I sure can’t get enough of him. It’s Jeff Meets Daredevil. Jeff the Land Shark learns the meaning of courage from on other then the man without fear! Love the Jaws homage variant by Nic Klein.

I Hate Fairyland #48. Are you caught up yet to this series? In this issue Gert and Larry find themselves merged together into a fly-hybrid creature. Yuck! As a massive Garbage Pail Kids fan, I couldn’t help myself and had to snag the B variant for this issue. Such a cool homage!

All comics releasing this week can be found in the NCBD tab in your add comics screen. All new releases have been carefully cleaned up, with lots of info added! Be sure to check them out in the app when you hit your comic shop or when you’re back home adding your stack you’ve just come home with!

Happy reading!

Read more

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CLZ Comics Mobile

Week 8: Most wanted comics

Feb 16, 2026

These top-10s are created by you all, the users of the CLZ app and software, as they’re based on how often these comics already appear on your wish lists in the CLZ Cloud, even before release!

Read more


Another stacked new comic book bay this week! With many #1’s by both Marvel, DC and the indie publishers. Here are a few books that were hand picked by our content managers:

A new superhero universe is born! Written by the legendary Larry Hama and art by Mark D. Bright with Josh Burcham. Without spoiling the plot: It takes place in a world where superheroes have become commonplace, heroes are required to join a union or else face serious financial liability for the damage caused during battles. And though the delicate balance of mitigating damage while saving lives is already tough enough, they’ve got their own worries with a constant stream of villains rising up to challenge them. The Center Holds #1 with 48 pages of story!

Fan or not, Jar Jar Binks has his #1 releasing this week. Star Wars: Jar Jar #1. This time co-written by the actor Ahmed Best. Art by Laura Braga, Kieran McKeown and Mike Atiyeh. It tells the story of the formation of the Rebel Alliance and has a fun guest star in the form of Kelleran Beq. That’s got to be meta in some way right?

Vertigo is back! Bleeding Hearts #1. The zombies won and ten years after the fall of humanity, they’re the dominant form of life (or not-life) on Earth. They’ve developed their own cultural practices, their own language, their own society. This seems like such a fun read with a slight twist to what we’ve seen before with zombies. It’s written by Deniz Camp and has the art done by Stipan Morian and Matt Hollingsworth. Definitely a pick up for me!

All comics releasing this week can be found in the NCBD tab in your add comics screen. All new releases have been carefully cleaned up, with lots of info added! Be sure to check them out in the app when you hit your comic shop or when you’re back home adding your stack you’ve just come home with!

Happy reading!

Read more

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CLZ Books Mobile

v10.5.4: A couple of bug fixes

Feb 11, 2026

Fixed:

  • Crash: When a book couldn’t be located/selected on start-up or after editing the app could crash
  • iPad: books sometimes wouldn’t be scrolled to after picking it from a search in your own collection
  • Collection bar at the bottom could disappear on closing the sync screen
  • Collection bar didn’t appear immediately when adding a new collection for the first time
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CLZ Movies Mobile

v10.2.5: A couple of bug fixes

Feb 11, 2026

Fixed:

  • Crash: When a movie couldn’t be located/selected on start-up or after editing the app could crash
  • iPad: movies sometimes wouldn’t be scrolled to after picking it from a search in your own collection
  • Collection bar at the bottom could disappear on closing the sync screen
  • Collection bar didn’t appear immediately when adding a new collection for the first time
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CLZ Games Mobile

v10.2.4: A couple of bug fixes

Feb 11, 2026

Fixed:

  • Crash: When a game couldn’t be located/selected on start-up or after editing the app could crash
  • iPad: games sometimes wouldn’t be scrolled to after picking it from a search in your own collection
  • Collection bar at the bottom could disappear on closing the sync screen
  • Collection bar didn’t appear immediately when adding a new collection for the first time
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CLZ Comics Mobile

Week 7: Most wanted comics

Feb 09, 2026

These top-10s are created by you all, the users of the CLZ app and software, as they’re based on how often these comics already appear on your wish lists in the CLZ Cloud, even before release!

Read more


This week’s new comic book bay is absolutely stacked! Truly feels like February is the month that publishers have started back up again after the New Years. Note-worthy comics that have been hand picked by our content managers:

DC releasing their crossover issue with the likes of Scorpion, Homelander, Sabrina the Teenage Witch and many more. All can be found fighting to the death in DC K.O.: Boss Battle #1.

Is this Red Ghost’s dream comic? It might possibly be! It has Marvel’s First Family who find themselves stranded on the Planet of the Apes world. Planet of the Apes vs. Fantastic Four #1. Oh and check out the Germán Peralta Variant!

It’s not a secret that Taco’s a big fan of anything Massive-verse related. He was able to meet and drink a beer with the creative crew in NY! That’s pretty cool right? So this weeks pick isn’t a total shocker, it’s: Inferno Girl Red, Vol. 2 #3. This weeks issue has Inferno Girl Red missing and it’s the conclusion to book two with 45 pages of story. What’s not to love here?

All comics releasing this week can be found in the NCBD tab in your add comics screen. All new releases have been carefully cleaned up, with lots of info added! Be sure to check them out in the app when you hit your comic shop or when you’re back home adding your stack you’ve just come home with!

Happy reading!

Read more

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CLZ Comics Mobile

Week 6: Most wanted comics

Feb 02, 2026

These top-10s are created by you all, the users of the CLZ app and software, as they’re based on how often these comics already appear on your wish lists in the CLZ Cloud, even before release!

Read more


There we go, the first CLZ Newsletter for 2026. This is CLZ Alwin.

We’re off to a good start, with several smaller updates for the CLZ mobile apps: a cosmetic upgrade for CLZ Comics aimed at slab collectors, an often requested (read: demanded) new setting for CLZ Books and 5 performance improving updates for all 5 Android apps.

Next to that, most of the team is working on 2 big projects that will hopefully reach launch before the next newsletter:
Our mobile deveopers Pim and Bernard are implementing all the recently introduced new book fields to the CLZ Books mobile app, including the reading history. More details below.
Then, there is the BIG ONE, the introduction of Custom Fields (aka User Defined Fields) in the CLZ Web software. Read on below for the first Sneak Preview screenshots!

The topics today:

  • CLZ Comics v10.7: Slab frames now also available in images and list views
  • CLZ apps for Android: Smoother navigation between folders, list and details
  • CLZ Books: New setting to disable book values + search your app by ISBN10
  • CLZ Core for Comics: Earlier inclusion of Manga, TPBs/HCs and regular comics
  • Coming up for the CLZ Books app: Track your Reading History, plus other new data fields
  • Sneak Preview of the Custom Fields for CLZ Web!

Read more