Koko is a free and open source image gallery application for Linux. It is a simple and easy to use gallery application. You can filer and sort images by year, months,, weeks, days, countries, states and cities. Not only sort you can also crop, resize, rotate, flip, mirror and edit your images. Some other useful features are slideshow, mark your favorite images, full screen mode, bookmark folder, set thumbnail size and slideshow interval and more. It is released under GNU Lesser General Public License v2.1.
How to Install Koko Image Gallery on Ubuntu Linux
Koko Image Gallery is available as a flatpak package file from the remote flathub repository. If you don’t have in your system, then install flatpak and flathub on your system first and restart it after the installation.
Open the terminal command-line application and run below Koko flatpak install command.
flatpak install flathub org.kde.koko
It will install the latest version of Koko on your system. Now open it by using below command.
flatpak run org.kde.koko
And uninstall it using this command.
sudo flatpak uninstall org.kde.koko