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 20, 2026
So slick and versatile
This is a magnificent software suite which I have huge faith in, to allow me to keep tabs on my various music collection (classical, pop, humour). It is so slick and versatile and widely adaptable. The Team are so on the ball and forever refining the software. I am most appreciative of their skills.
HDavid Lane (United Kingdom) on CLZ Music Mobile
Feb 19, 2026
Excellent Customer Support
Ran into an issue and sent in a request for help via their online help site. Athan-Jon de Jager responded back promptly and quickly took interest in the issue I was having. After sifting through and a few recommendations, he discovered the issue and replied back with a fix. Thank you guys. You’re the type of dev team I want to support! Keep up the great work!
Teknoman3 (USA)
Feb 19, 2026
Super!
We love this app, it does what it promises and has a super customer service.
Charlottemage (Netherlands)
Feb 10, 2026
Best Music App Ever!
I‘m using this fantastic app since more than 4 years and I am happy having a wonderful overview about my Vinyl and CD collection with more than two thousand items. I am also very satisfied with the great support by the CLZ team in case of developing new features and replying questions in great quality. Prize/Quality is absolutely top!!! I highly recommend this app!!!
golthuis (Germany)
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)
Feb 1, 2026
User support
The support I’ve gotten from CLZ is great. I haven’t had many problems, but the few I’ve had they’ve helped quickly, with easy solutions.
Good people doing good business here - highly recommend.
TheFreelanceTeacher (USA)
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)

Latest CLZ news


Such a good week for comics! With DC taking the crown of most releases this week compared to Marvel. We saw Absolute Wonder Woman #17 in our Most Wanted on Monday. But it looks like Detective Comics #1106 beat that today! Here are a few books that were hand picked by our content managers:

Are you ready for a new Punisher #1? I sure am always in the mood for it.The Punisher #1. Written by Benjamin Percy and art by José Luis Soares Pinto, Oren Junior and Frank D’Armata. It sees the return of Jigsaw and Frank Castle hunting for answers after his memory is damaged once again. Definitely getting the Alex Maleev Variant!

Boom! Another new volume of anything and everything Massive-Verse. Across the Massive-Verse TP Vol. 2. This time it features Radiant Red, Radiant Pink, No/One and Cowl. I’d say a perfect entry point for new readers!

New History of the DC Universe: The Dakota Incident #1. From what we’ve seen and has been teased so far, this is going to be a solid read! It’s about a murder that leads to an all out war between the heroes of Dakota City and the US government. Surely that won’t be troubling? Static & Rocket and likely other Milestone character will hopefully safe the day 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


Today, another huge update for your CLZ Books mobile app, version 10.6. The update brings several new features and data fields that have been requested by our customers through the years:

  • Track your Reading History, with multiple read sessions, each having Start and End Dates, Reading Status, Reading Progress and Reader fields.
  • New dimension fields: Spine Thickness and Weight, delivered automatically from Core!
  • Next to Book Condition, a new field for the Dust Cover Condition
  • Place of Publication, plus Original Place of Publication

Read more

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CLZ Comics Mobile

Week 9: Most wanted comics

Feb 23, 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

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CLZ Comics Web

Create your own Custom Fields!

Feb 23, 2026

This is it, THE main feature release for 2026. A huge step forward in the customizability of the software. And I am not talking about tweaking the look and feel here, like layout, colors, fonts, etc… No… this time we are giving you the ability to actually customize the database itself!

Yep, today is the launch of the “Custom Fields” feature (previously known as “User Defined Fields”).

The Custom Fields feature will let you create your own data fields, to catalog any information for which the software does not have a built-in field. You can create text fields, number fields, date fields, Yes/No toggles, pick list fields and much more.

All fields you create can be edited on a special Custom Fields tab of the Edit screen and their data will nicely appear in a special section in the comic details panel in the main screen. And of course, you will be able to use the fields like any built-in fields, use them as columns, sort on them, use pick list fields as folders, add the fields to printed list, exports, etc..

Read more

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CLZ Games Web

Create your own Custom Fields!

Feb 23, 2026

This is it, THE main feature release for 2026. A huge step forward in the customizability of the software. And I am not talking about tweaking the look and feel here, like layout, colors, fonts, etc… No… this time we are giving you the ability to actually customize the database itself!

Yep, today is the launch of the “Custom Fields” feature (previously known as “User Defined Fields”).

The Custom Fields feature will let you create your own data fields, to catalog any information for which the software does not have a built-in field. You can create text fields, number fields, date fields, Yes/No toggles, pick list fields and much more.

All fields you create can be edited on a special Custom Fields tab of the Edit screen and their data will nicely appear in a special section in the games details panel in the main screen. And of course, you will be able to use the fields like any built-in fields, use them as columns, sort on them, use pick list fields as folders, add the fields to printed list, exports, etc..

Read more

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CLZ Music Web

Create your own Custom Fields!

Feb 23, 2026

This is it, THE main feature release for 2026. A huge step forward in the customizability of the software. And I am not talking about tweaking the look and feel here, like layout, colors, fonts, etc… No… this time we are giving you the ability to actually customize the database itself!

Yep, today is the launch of the “Custom Fields” feature (previously known as “User Defined Fields”).

The Custom Fields feature will let you create your own data fields, to catalog any information for which the software does not have a built-in field. You can create text fields, number fields, date fields, Yes/No toggles, pick list fields and much more.

All fields you create can be edited on a special Custom Fields tab of the Edit screen and their data will nicely appear in a special section in the album details panel in the main screen. And of course, you will be able to use the fields like any built-in fields, use them as columns, sort on them, use pick list fields as folders, add the fields to printed list, exports, etc..

Read more

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CLZ Books Web

Create your own Custom Fields!

Feb 23, 2026

This is it, THE main feature release for 2026. A huge step forward in the customizability of the software. And I am not talking about tweaking the look and feel here, like layout, colors, fonts, etc… No… this time we are giving you the ability to actually customize the database itself!

Yep, today is the launch of the “Custom Fields” feature (previously known as “User Defined Fields”).

The Custom Fields feature will let you create your own data fields, to catalog any information for which the software does not have a built-in field. You can create text fields, number fields, date fields, Yes/No toggles, pick list fields and much more.

All fields you create can be edited on a special Custom Fields tab of the Edit screen and their data will nicely appear in a special section in the book details panel in the main screen. And of course, you will be able to use the fields like any built-in fields, use them as columns, sort on them, use pick list fields as folders, add the fields to printed list, exports, etc..

Read more

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CLZ Movies Web

Create your own Custom Fields!

Feb 19, 2026

This is it, THE main feature release for 2026. A huge step forward in the customizability of the software. And I am not talking about tweaking the look and feel here, like layout, colors, fonts, etc… No… this time we are giving you the ability to actually customize the database itself!

Yep, today is the launch of the “Custom Fields” feature (previously known as “User Defined Fields”).

The Custom Fields feature will let you create your own data fields, to catalog any information for which the software does not have a built-in field. You can create text fields, number fields, date fields, Yes/No toggles, pick list fields and much more.

All fields you create can be edited on a special Custom Fields tab of the Edit screen and their data will nicely appear in a special section in the movie details panel in the main screen. And of course, you will be able to use the fields like any built-in fields, use them as columns, sort on them, use pick list fields as folders, add the fields to printed list, exports, etc..

Read more


Are you ready for the next step in customizing your CLZ Web software?
Coming up next Monday:

Create your own Custom Fields!

The Custom Fields feature will let you create your own database fields, to catalog any information for which the software does not have a built-in field.

Fill in your custom fields on the special tab of the Edit screen and their data will nicely appear in a special section in the details panel in the main screen. And of course, you will be able to use the fields like any built-in fields, use them as columns, sort on them, use pick list fields as folders, add the fields to printed list, exports, etc..

Read more


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