PhotoQt is a simple yet powerful and good looking image viewer, based on Qt/QML, published as open-source and completely free
License: GPL-2.0
Web page: https://photoqt.org
Source code: https://gitlab.com/lspies/photoqt
Translate: https://translate.photoqt.org
Report the bug: https://gitlab.com/lspies/photoqt/-/work_items/new