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 5, 2025
Truly amazing
I’d just like to say that Music Collector is the best piece of software I have come across for cataloging my music collection. I wouldn’t use anything else on the market. Your creation is truly amazing. Thank you for making it so easy for me.
Gary PP (United Kingdom)
Nov 5, 2025
Excellent apps
I have just started with the books app but been using your Music and Movies apps for years now and both are quite excellent as I have thousands of each of those.
Now on to books, LOL.
Paul Whiddon (USA)
Oct 14, 2025
Thank you CLZ Team!
I’ve been a fan and user of the CLZ Comics app for more than 12 years now, and there is no app on my phone more important to me. It is absolutely indispensable now, and there’s no way I could manage even a modest collection like mine without it. Thanks to you and the CLZ team for all the work and care you put into the Comics app. I appreciate it as I’m sure every user does or should.
Knowing how useable and comprehensive the Comics app is led me to subscribe to the Movies, Music, and Books apps this week. Especially as I prepare for a couple of moves in the next year or so, this was a great time to subscribe and keep all my other collections organized and noted where individual books and records are stored for easier retrieval.
I’m not a gamer per se, but I’ll probably join the Games app eventually even if only to keep track of tbe Atari 2600 games I own vs what I am still looking for.
Thanks again to you and the whole team.
Frank Saunders (USA)
Oct 14, 2025
Great communication and care
You guys always have such great communication and care for the users and community, of which I already belong to. I'm not going anywhere, don't worry!
Cassie R (USA)
Oct 10, 2025
Phenomenal
It worked perfectly. Thank you so much for the help phenomenal customer service.
Josh (USA)
Oct 6, 2025
Merci beaucoup!
Thank you all so much for your help.
This is a wonderful service you have. Thank you thank you.
Judy (USA)
Oct 3, 2025
Your customer service is great
That looks like it fixed it! Thank you so much, your customer service is great, and quick!
I’ve been a customer and user for many years, and use all my databases daily! I’ve recommended them to many acquaintances over the years.
Anthony (USA)
Sep 26, 2025
The best
These are the best apps to do your cataloguing.
Pete M. (Canada)
Sep 24, 2025
The best out there!
Thank you so much!!! I did the renewal, and am VERY THANKFUL for the discount!!!
We LOVE the programs, and have been telling EVERYONE we know (and don’t know) to get them. They are amazing and are the best ones around for any type of collector!
Wendy (Canada)
Sep 22, 2025
Customer service
Thanks for the quick responses…. As always your customer service and response speed is second to none!
EK (Canada)
Sep 8, 2025
I really admire you and your team
It was a sleepless night, early in the morning hours, and I attempted to complete the purchase on my Android. PayPal decided that was the perfect opportunity to mess with me, and it wouldn't allow me to log on, change the password, etc. This morning I used my laptop, which is a much more generous and forgiving device, and all is resolved!
Don't get me wrong, and just for the record, I am not disparaging my smartphone (all hail our wondrous robot overlords)! Appreciate your concern, rapid follow-up, and friendly offer. I really admire you and your team, even the non-robots.
Have a great week ahead!
John B. (USA)

Latest CLZ news


In today’s version 10.5 update, we are introducing two new features in the Add Comics screen.

  • New “One-by-One” mode in Add By Barcode tab: scan and add comics one-at-a-time, without a queue.
  • New: easily open any series in the Series tab: in any issue preview pop-up, the series title is now a tappable link that takes you straight to that series in the Series tab

Read more

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CLZ Movies Web

v10.2.2: Fix for the ‘Type barcode’ tab

Nov 20, 2025

Fixed:

  • Add Movies: when using the ‘Type barcode’ tab the Preview pop-up could show under the number keyboard
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CLZ Books Mobile

v10.4.2: Fix for the ‘Type ISBN’ tab

Nov 20, 2025

Fixed:

  • Add Books: when using the ‘Type ISBN’ tab, the preview pop-up could show under the ISBN keyboard

NCBD is here once again young comic readers!

Get ready to return to the sweeping plains of Africa for a brand-new series of adventures starring Mufasa and Simba! The Lion King #1 Set in the golden time before the rise of Scar, The Lion King follows the ruler of the Pride Lands and his young heir as they navigate the complex network of relationships that make up their kingdom — and learn firsthand how to defend it against the forces that threaten it both from the outside and from within.
Spawn: The Dark Ages #1 Saxon barbarians harry Britain from the east. In the North, the Pictish threat looms. From the West, Hibernians send raiders from the land that shall one day be called Ireland. Aurelianus, newly anointed king, must defend Britain against all of these threats, whilst also dealing with the growing rebellion amongst his own people. For there are stories of another, more worthy king. One anointed by the old Celtic gods — whom the Christians refer to as the Devil Spawn…

The Dark Knight and the Merc with a Mouth team up for an adventure so mind-bending you’ll think you’re in a dream! Brought to you by legendary creators Grant Morrison and Dan Mora! And be sure not to miss these incredible extra stories: DC / Marvel: Batman / Deadpool #1. Scott Snyder, James Tynion IV, and Joshua Williamson team up with Hayden Sherman for a magical Constantine/Doctor Strange tale! Tom Taylor and Bruno Redondo bring you an epic Nightwing/Dick Grayson and Laura Kinney/Wolverine story! Mariko Tamaki and Amanda Conner smash Harley Quinn and the Hulk together! G. Willow Wilson and Denys Cowan tell an electrifying Static and Ms. Marvel yarn!

Happy Reading!

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Adding books by scanning/reading ISBN barcodes is one of the most popular features of the CLZ Books app. Just scan ISBNs, bleep, bleep, bleep, and the scanned books are added to a “queue”. Then use the Add button at the bottom to add all queued books to your database in one go. Quick and efficient.

However, we always like to keep improving the app, or at least give users multiple options. So today we have added a new “One-by-One” mode to the Add by ISBN screen, that is, without a queue.

Read more


Adding movies by scanning barcodes is one of the most popular features of the CLZ Movies app. Just scan barcodes, bleep, bleep, bleep, and the scanned movies are added to a “queue”. Then use the Add button at the bottom to add all queued movies to your database in one go. Quick and efficient.

However, we always like to keep improving the app, or at least give users multiple options. So today we have added a new “One-by-One” mode to the Add by Barcode screen, that is, without a queue.

Read more


The best day of the week: NCBD!

Colossal Kaya #1 Nathan Fox! James Harren! Mike Huddleston! Declan Shalvey! Ryan Stegman! Wes Craig teams up with some of the greatest artists in modern comics for a jam-packed SPECIAL. Classic centrefold! A colossal 48 pages of story and extras! COLOSSAL KAYA is an exclusive single issue, not to be collected in a trade paperback and includes a 6-page introduction to the series, perfect for new readers.

After quite the wait, it’s finally here. Chapter 5 in the Hush 2 storyline: Batman #162 Batman versus the Bat-Family! Whose side are you on?

REVOLUTIONARY WARRIORS, ASSEMBLE! 1776 #1 Calamity strikes when a mysterious force dares to tamper with the sacred threads of history. Captain America and his formidable squad of Marvel heroes leap into action! Their mission? To safeguard the founding of the United States of America! The fate of the nation hangs in the balance at the dawn of the Revolution, as these valiant heroes must navigate the treacherous waters of the past to ensure a future that remains untarnished.
Happy Reading!

Read more

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CLZ Comics Mobile

Week 46: Most wanted comics

Nov 10, 2025

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!

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It’s already November 5, so the October Newsletter is definitely running a bit late!
But here it is today, with 5 big updates for all 5 mobile apps (eBay links!) and an overview of things to come.
The main upcoming event is of course the introduction of Custom Fields in the CLZ Web and mobile! More details about that one below.

In short, these are the topics today:

  • All 5 CLZ mobile apps: Automatic eBay search links
  • Coming up for CLZ Web: create your own Custom Fields!
  • Coming up for CLZ Mobile: One-by-one mode for adding by barcode
  • Coming up for CLZ Books: Reading history, dust cover condition and more
  • “Incredibly powerful”, a CLZ Music Web review by user Matthew

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New Comic Book Day once again!

Crownsville #1 Founded at the turn of the 20th century outside of Annapolis, Maryland, the Crownsville Hospital was a notoriously segregated, all-Black psychiatric institute. After decades of overcrowding and neglect—alongside darker, more-persistent rumors of patient abuse and illegal medical experiments—it was finally closed. Today, it stands condemned—a crumbling testament to a legacy of all-too-real terror inflicted on a marginalized and vulnerable community. But even as a ruin of its former self, Crownsville still casts a long shadow…

When an unexplained death inside the abandoned hospital is ruled a suicide, Annapolis police detective Mike Simms and journalist Paul Blairare are compelled to dig deeper, only to discover the reality of the horrors that once took place there… and the powerful connection they share to the anguished spirits of the dead that are still locked within its walls.

DC K.O.: Knightfight #1Experience Batman’s epic journey during the explosive DC K.O. event! The Dark Knight is forced to take a different path in the tournament for the Heart of Apokolips — one that has turned Gotham into a deadly arena where Batman must battle against the Batmen of the future! Who are these Batmen? Stay tuned to find out! Get ready for the greatest fight of Batman’s life in this over-the-top crossover miniseries!

Echo: Seeker of Truth #1 When her cousin goes missing in Los Angeles, ECHO goes to the City of Angels to find out what happened to her. But what she discovers is a series of disappearances centered around a mysterious wellness cult called Wisteria Meadows. As Echo dives deeper into the mystery, she’ll discover a truth about herself she never imagined. But who is the faceless puppet master behind the cult, and what is their sinister plan?

Happy Reading!

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