--- title: Install CoolCroco on CentOS using the Snap Store | Snapcraft description: Get the latest version of CoolCroco for on CentOS - A RAM-resident image viewer for fast photo culling url: https://snapcraft.io/install/coolcroco/centos --- [Canonical Snapcraft](https://snapcraft.io/) # Install CoolCroco on **CentOS** # CoolCroco [ahmet yuksek (ayuksek)](https://snapcraft.io/publisher/ayuksek "View all snaps from ahmet yuksek (ayuksek)") * [ahmet yuksek (ayuksek)](https://snapcraft.io/publisher/ayuksek "View all snaps from ahmet yuksek (ayuksek)") * [Photo and Video](https://snapcraft.io/search?categories=photo-and-video) * [Productivity](https://snapcraft.io/search?categories=productivity) [Install](https://snapcraft.io/install/coolcroco/centos#install) #### A RAM-resident image viewer for fast photo culling **CoolCroco decodes the whole folder and holds it in RAM.** Once the first pass is done you move through hundreds of RAW files instantly, forwards or backwards, with no re-decoding and no cache thrashing. It is built for one job: getting through a shoot without waiting for it. **Reads what your camera writes** Every major RAW format via LibRaw - Sony, Canon, Nikon, Fujifilm, Olympus, Panasonic, Pentax, Leica and more - plus HEIC/HEIF from an iPhone, and JPEG, PNG, TIFF and WebP. **Culling** * **Keep or reject with one key.** A files a photo into Approved/, X into Rejected/, and Ctrl+Z puts it back. Nothing is deleted: your photographs are only ever moved beside the originals. * **Rate 1 to 5**, written where Lightroom, Bridge and Capture One read them. * **Cull as a contact sheet.** Press G for a grid of the whole folder and use the same keys on it. * **Thumbnail filmstrip**, with the divider draggable to whatever size suits. **Finding what is in the shoot** * **Search by picture content.** Type *motorcycle*, or *stars over a lake*, and the frames that match come to the front. It runs entirely on your own computer and needs a one-off model download the first time. No face recognition, and there never will be. * **Near-duplicates**, found rather than hunted for. * **Bursts and timelapses**, picked out of the folder on their own. * **Focus and camera-shake detection**, with a soft-frame triage window. **Looking closely** * **Sticky zoom across frames** - set it once and compare the same corner of every shot in the run. * **Full-resolution decode on zoom**, for true 1:1 pixel peeping. **Metadata** * EXIF in properties, and selective EXIF removal with a restorable backup. * IPTC writing, embedded or as a sidecar. **A note on permissions** Photographs on an SD card or an external drive need the **removable-media** permission, which is not granted automatically. Turn it on under this app's Permissions in App Center, or run: ``` snap connect coolcroco:removable-media ``` Deleting a photograph sends it to the desktop's Trash, from where your file manager can restore it. Undo inside CoolCroco covers everything else, including every cull and rating. ### Package name * coolcroco --- ### License * Proprietary --- ### Last updated * 19 October 2026 - latest/stable --- ### Websites * [ahmetyuksek.com](https://ahmetyuksek.com/coolcroco "https://ahmetyuksek.com/coolcroco") --- ### Donations * [ahmetyuksek.com](https://ahmetyuksek.com/donate "https://ahmetyuksek.com/donate") --- ### Report a bug * [github.com/ahmetyuksek/CoolCroco-releases](https://github.com/ahmetyuksek/CoolCroco-releases "https://github.com/ahmetyuksek/CoolCroco-releases") --- ##### Report a Snap Store violation * [Report this Snap](https://snapcraft.io/install/coolcroco/centos#report-snap-modal) --- ## Enable snaps on CentOS and install CoolCroco Snaps are applications packaged with all their dependencies to run on all popular Linux distributions from a single build. They update automatically and roll back gracefully. Snaps are discoverable and installable from the [Snap Store](https://snapcraft.io/store), an app store with an audience of millions. ### Enable snapd Snap is available for [CentOS 7.6+](https://snapcraft.io/install/coolcroco/centos), and Red Hat Enterprise Linux 7.6+, from the [Extra Packages for Enterprise Linux](https://fedoraproject.org/wiki/EPEL) (EPEL) repository. The EPEL repository can be added to your system with the following command: ``` sudo yum install epel-release ``` Snap can now be installed as follows: ``` sudo yum install snapd ``` Once installed, the *systemd* unit that manages the main snap communication socket needs to be enabled: ``` sudo systemctl enable --now snapd.socket ``` To enable *classic* snap support, enter the following to create a symbolic link between `/var/lib/snapd/snap` and `/snap`: ``` sudo ln -s /var/lib/snapd/snap /snap ``` Either log out and back in again, or restart your system, to ensure snap’s paths are updated correctly. ### Install CoolCroco To install CoolCroco, simply use the following command: ``` sudo snap install coolcroco ``` ### Other popular snaps… [See more...](https://snapcraft.io/search?categories=featured) [See more in Featured](https://snapcraft.io/search?categories=featured) ### More things to do… #### [Get the snap store](https://snapcraft.io/snap-store) Browse and find snaps from the convenience of your desktop using the snap store snap. #### [Learn more about snaps](https://snapcraft.io/docs) Interested to find out more about snaps? Want to publish your own application? Visit [snapcraft.io](https://snapcraft.io/) now. [Back to top](https://snapcraft.io/install/coolcroco/centos) © 2026 Canonical Ltd. Ubuntu and Canonical are registered trademarks of Canonical Ltd. 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