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

Jun 25, 2025
Finally an easy way to catalogue my huge CD collection
We have a very eclectic CD collection of around 2000 and I gave up trying to copy them to my Apple Music Collection. I finally found this fast and easy app with great support and I am finally able to catalogue my collection.
laughsoutloud (USA) on CLZ Music Mobile
Jun 22, 2025
Top notch folks
Best way to keep track of your DVD's. I would also like to thank customer service. They are fast and very helpful. I couldn't get into my account and they helped me.
James Ferrell (USA)
Jun 20, 2025
Wonderful customer service
Wonderful organizer for your comics. Very user friendly. Recently experienced a problem with the app and after contacting the developer the problem was fixed the next day.
David Vasquez
Jun 17, 2025
I'm having so much fun with your software!!
I am so overwhelmed and excited about this app! I have also installed your music app and will install your book app next. What a time saver!!
I was going to create all this on Excel - whew, that was a huge project before me. You saved a huge amount of time for me.
Your app is so user friendly. I just experimented and very quickly I was up and running. I'm telling everyone I know about these wonderful apps!
Carole E. (USA)
Jun 12, 2025
So responsive
Thanks so much Sytske! Your company has always been so responsive and I greatly appreciate it.
Lynn (USA)
Jun 10, 2025
One of the best apps
This is still one of the best apps I ever got for my phone. Comic related or otherwise.
Glenn S. (USA)
Jun 9, 2025
Great app
Great customer support! Love the app.
Millzee42 (USA)
Jun 2, 2025
Great software
I have been delighted with the desktop version that I have been using for around 15 years! I am so pleased that I chose your product back in 2010. Thank you for building such great, reliable software.
Christianne T (United Kingdom)
May 30, 2025
Exceptional service
I wish to extend my sincere gratitude for the exceptional service you have provided. I was pleasantly surprised by the consistent professionalism and the personal care you put into every interaction—it truly exceeded my expectations.
If I ever return to my collector period, rest assured that you will be my unequivocal first choice.
I have been proudly recommending your products throughout this time, and now, more than ever, I stand by my endorsement. Even after 20 years, your unwavering support and dedication continue to impress me—simply amazing!
Thank you very much for your outstanding assistance. It is an honor to act as your ambassador, and I look forward to our next venture.
Adelmur (Mexico)
May 6, 2025
Customer service
Thanks for all your help on this mishap of mine.
As per normal your customer service is second to none
Graham A. (Germany)
May 4, 2025
Brilliant
Thanks for replying so quickly. That's worked brilliantly.
Great customer service. Thank you.
Jimbo M. (United Kingdom)

Latest CLZ news

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CLZ Comics Mobile

Week 27: Most wanted comics

Jun 30, 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!

Read more


This is CLZ Alwin, with your CLZ News for June 2025.

THE big release this month was of course the long awaited Toys-to-Life (TtL) support in CLZ Games web and mobile. You can now finally catalog your amiibo, Skylanders, Disney Infinity and other TtL figures.

This whole TtL endeavour took quite a bit longer than anticipated. Lots of work on our own Core TtL database, modifying the cloud database and CLZ Games Web software, creating server side endpoints for the mobile apps to access that, then finally adding all the new features to the CLZ Games mobile apps, including the cool new (for us) technology of adding toys by scanning the figure’s NFC tag with your mobile device.

But… it is all finally here and early feedback has been awesome!

The other update this month is basically an extension of last month’s “more compact” update of the CLZ Web software, as we continued our re-design work, focusing on the “details panels” of all five CLZ Web flavors. You know, the area of the screen where it shows all information of the selected movie, comic, book, etc…
Read on below to find out what has changed.

With all that out of the way, our mobile and web developers are continuing on the “new fields” project for CLZ Music, and… we started 3 other projects too. Check out the “Coming up” section below:

The topics today:

  • Now live: CLZ Games mobile and web: Catalog your amiibo, Skylanders, etc..
  • Now live: CLZ Web, improved design, layout and performance for item details panels.
  • Coming up: CLZ Music updates with new fields (listening history, matrix nrs, etc.)
  • Coming up: CLZ Movies updates with new fields (editable discs/episodes, watch history, etc..)
  • Coming up: CLZ Comics 10.3: Improved adding by Cover and by Barcode
  • Coming up: automatic eBay search links for CLZ Web

Read more


Cowabunga, it’s NCBD!

New History of the DC Universe #1In celebration of 90 years of DC, super fan and writer Mark Waid turns back time to the very beginning of the DC Universe in a four-issue miniseries drawn by some of DC’s greatest artists and told by the newest chronicler of time, Barry Allen, the Flash! In our debut issue, Barry takes us from the very birth of the DC Universe to the rise of the Justice Society. The Golden Age of heroes begins here!

The Blue Bomber is back! Mega Man: Timelines #1 Mega Man returns in five connected 1-shot comics spanning five different eras of robotic heroes! In this first issue, the original Mega Man squares off against two explosive and fiery Robot Masters bent on city-wide destruction! Fight, Mega Man! For everlasting peace! Written by Travis Maiden and art by Kenny Ruiz.

Spider-Boy, Vol. 1 #20. Spider-Boy’s greatest battle lies ahead! Spider-Man is down! And with Mr. Negative and his inner demons closing in, Spider-Boy makes a last, desperate stand! Look out, Bailey — it’s all the friends (and foes) you made along the way! Spider-Girl! Hulkette! Madame Monstrosity and more! But are they here to help Bailey or Mr. Negative?!

Happy Reading!

Read more


Three weeks ago, we did a huge “more compact design” update. Today, we are continuing with another update that improves the design, layout and performance of your album details panel.

Here’s what has changed:

  • Flexible layout: the layout now fully adapts to the width of your details panel.
  • Fields moved: we moved some fields around, to make sure the most important fields are at the top.
  • Faster loading: the details panel now loads much faster, as it now delays the loading of the backdrop.

Read more


Three weeks ago, we did a huge “more compact design” update. Today, we are continuing with another update that improves the design, layout and performance of your book details panel.

Here’s what has changed:

  • Flexible layout: the layout now fully adapts to the width of your details panel.
  • Fields moved: we moved some fields around, to make sure the most important fields are at the top.
  • Faster loading: the details panel now loads much faster, as it now delays the loading of the backdrop.

Read more


Three weeks ago, we did a huge “more compact design” update. Today, we are continuing with another update that improves the design, layout and performance of your game details panel.

Here’s what has changed:

  • Flexible layout: the layout now fully adapts to the width of your details panel.
  • Fields moved: we moved some fields around, to make sure the most important fields are at the top. For example, the Index field has been moved down to the “Personal” block.
  • New (or updated) Platform icons: Platform icons are now available for a lot more platforms and are now displayed on a white background to make them stand out more.
  • Youtube trailers: trailer videos now show up as a video thumbnails that links to the video on the Youtube site. No more embedded videos, as these often did not work (embed not allowed) and made the details panel load very slow.
  • Faster loading: the details panel now loads much faster, as it now delays the loading of the backdrop and because the trailer video is not embedded anymore

Read more


Three weeks ago, we did a huge “more compact design” update. Today, we are continuing with another update that improves the design, layout and performance of your comic details panel.

Here’s what has changed:

  • Flexible layout: the layout now fully adapts to the width of your details panel.
  • Fields moved: we moved some fields around, to make sure the most important fields are at the top.
  • Publisher icons are now displayed on a white background to make them stand out more.
  • Faster loading: the details panel now loads much faster, as it now delays the loading of the backdrop.

Read more


Three weeks ago, we did a huge “more compact design” update. Today, we are continuing with another update that improves the design, layout and performance of your movie details panel.

Here’s what has changed:

  • Flexible layout: the layout now fully adapts to the width of your details panel.
  • Fields moved: we moved some fields around, to make sure the most important fields are at the top. For example, the Index field has been moved down to the “Personal” block.
  • New Format icons: format icons are now available for a lot more formats and are now displayed on a white background to make them stand out more.
  • Youtube trailers: trailer videos now show up as a video thumbnails that links to the video on the Youtube site. No more embedded videos, as these often did not work (embed not allowed) and made the details panel load very slow.
  • Faster loading: the details panel now loads much faster, as it now delays the loading of the backdrop and because the trailer video is not embedded anymore

Read more

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CLZ Comics Mobile

v10.2.7: Add Comics screen fix

Jun 19, 2025

Fixed:

  • After adding a comic the “Add Manually” screen would pop up

NCBD has arrived once again!

Bring on the Bad Guys: Doom #1An ancient artifact known as the SOUL FORGE has the power to collect all the souls on Earth! Doctor Doom must stop it at all costs! Who is the mysterious Sister Sorrow, and what is her connection to Doom? Written by Marc Guggenheim and art by Stefano Raffaele & Neeraj Menon.

Kong returns in: Return to Skull Island #1 A ragtag group of castaways must return to an island steeped in dark secrets and danger!
After Kong’s battle with the Kraken, survivors soon discover that far worse lurks in the shadows… and that their unlikely ally may not be able to protect them from Skull Island’s horrors!

Krypto: The Last Dog of Krypton #1. There will come a day when Krypto stands beside Superman, helping him fight off monsters, aliens, and supervillains — a day when this dog will save his adoptive world thanks to the incredible powers granted him by Earth’s strange yellow sun. But he’s not there yet. Today, Krypto is a normal puppy on Krypton, spending each happy, snoozy, endless day alongside his family: Jor-El, Lara, and baby Kal-El. But when a rocket test goes wrong, Krypto finds himself lost in space — and soon crash-landing, all alone, on a strange and alien world called Earth.

Happy Reading!

Read more