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.
CLZ Comics
CLZ Movies
CLZ Games
CLZ Music
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Reviews from CLZ users
That alone is worth it. LOVE IT!!!!
Latest CLZ news
A handy update for CLZ Games! YouTube trailers for games typically come straight from our Core database, but now you can replace the standard Core YouTube trailer with a trailer of your own choice, or add one if we Core didn’t provide one.
Just paste any YouTube URL into your the YouTube trailer link section (Edit Game, then go to the Links tab) and CLZ Gamesautomatically grabs the thumbnail image and video description for you.
Add as many as you like per game, then drag them into your preferred order.
Yeah baby, it’s new comic book day! Here are a few books that were hand picked by our content managers:
Batman / Superman: World’s Finest, Vol. 2 #50D
Bizarro Year None #1D
Eternals 50th Anniversary Special 1B
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
No new features here, but an important improvement to an existing one: the CLZ Cloud syncing. Our mobile developers Pim and Bernard have implemented three changes that will make the down-syncing of new items from the CLZ Cloud to your app a LOT faster!
- The syncing now down-syncs the *data* first, while queuing the *image* downloads. This will make the data sync super fast.
- Downloading the images is much quicker too, especially on fast connections, as it downloads multiple images at the same time.
- As soon as the data download has completed, you can close the Sync screen and start using the app. The image downloads will continue at the bottom of the main screen, prioritising images that are “in view”.
The improvement in speed will be most noticeable when re-downloading your complete CLZ Cloud database, e.g.
- After installing the app on a new device
- After removing and re-installing the app
- After Clearing the Database
However, even during normal use, e.g. when syncing between devices, or between the app and the CLZ Web software, you will find the down-syncing to be much faster than before.
Fixed for Android:
- Pre-fill: Watched now has a “Watched/Not Watched” toggle
- Edit screen: New big blue “Mark as Watched” button on the Personal tab for unwatched movies
No new features here, but an important improvement to an existing one: the CLZ Cloud syncing. Our mobile developers Pim and Bernard have implemented three changes that will make the down-syncing of new items from the CLZ Cloud to your app a LOT faster!
- The syncing now down-syncs the *data* first, while queuing the *image* downloads. This will make the data sync super fast.
- Downloading the images is much quicker too, especially on fast connections, as it downloads multiple images at the same time.
- As soon as the data download has completed, you can close the Sync screen and start using the app. The image downloads will continue at the bottom of the main screen, prioritising images that are “in view”.
The improvement in speed will be most noticeable when re-downloading your complete CLZ Cloud database, e.g.
- After installing the app on a new device
- After removing and re-installing the app
- After Clearing the Database
However, even during normal use, e.g. when syncing between devices, or between the app and the CLZ Web software, you will find the down-syncing to be much faster than before.
Fixed for Android
- Setting to enable Subject downloads wasn’t working correctly
The Shake feature is a popular gimmick of the CLZ Comics app: just shake your phone to make it show a random comic from your collection.
This cool tool has even resulted in a recurring trend in the “CLZ Comics” group on Facebook: The Shake of the Day.
Members shake their phone and post a screenshot of the random comic that appears, marking it with the #shakeoftheday hashtag. It’s a fun way to show interesting comics from your collection that you would not have picked yourself.
However… it has come to our attention that some members of this group are being, let’s say, “less than honest” with their shakes!
Fixed:
- Sync: Custom covers weren’t downloaded
This is Alwin, from CLZ, bringing you our monthly news for March 2026. Most of the dev team is caught up in big undertakings at the moment, so that means very few updates this month.
Mobile developers Pim and Bernard are implementing the huge Custom Fields feature for the mobile app. Web developer Joe is adding the ability to add more images for the CLZ Web software. Web developer Michiel is “making more things clickable” in the CLZ Web details panels (I’ll explain below, under What’s Cooking).
Finally… lead developer Sven is doing early research into some cool feature ideas we have. Yeah, I know, that is even more vague, but it’s all I can say at the moment. Will tell you more once I know more!
So for today, two updates and a long What’s Cooking section:
- CLZ mobile apps: Faster down syncing from CLZ Cloud
- CLZ Games Web: Add your own YouTube trailer links
- What’s cooking?
- CLZ Games mobile app: Add your own YouTube trailer links
- CLZ Web: Making more things “clickable”
- CLZ Web: Add more images to your entries (next to front and back)
- CLZ mobile apps: Create (and Sync!!) your own Custom Fields
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!
No new features here, but an important improvement to an existing one: the CLZ Cloud syncing. Our mobile developers Pim and Bernard have implemented three changes that will make the down-syncing of new items from the CLZ Cloud to your app a LOT faster!
- The syncing now down-syncs the *data* first, while queuing the *image* downloads. This will make the data sync super fast.
- Downloading the images is much quicker too, especially on fast connections, as it downloads multiple images at the same time.
- As soon as the data download has completed, you can close the Sync screen and start using the app. The image downloads will continue at the bottom of the main screen, prioritising images that are “in view”.
No new features here, but an important improvement to an existing one: the CLZ Cloud syncing. Our mobile developers Pim and Bernard have implemented three changes that will make the down-syncing of new items from the CLZ Cloud to your app a LOT faster!
- The syncing now down-syncs the *data* first, while queuing the *image* downloads. This will make the data sync super fast.
- Downloading the images is much quicker too, especially on fast connections, as it downloads multiple images at the same time.
- As soon as the data download has completed, you can close the Sync screen and start using the app. The image downloads will continue at the bottom of the main screen, prioritising images that are “in view”.