Apps similar to LXImage-QT include Flameshot, which is free and open source. Other options are XnView MP, Spectacle, Eye of GNOME and feh. In total there are nine Image Viewers like LXImage-QT for Linux, Mac and Windows.
Flameshot is a free, open-source screenshot tool that is cross-platform compatible, offering customization, editing features, CLI scripting, and direct Imgur uploads for seamless sharing. It provides an intuitive user experience through features like area selection, annotations, and saving options.
Comprehensive photo management software for viewing, batch converting, editing and resizing images and creating thumbnail sheets.
France
EU
Spectacle is a simple application for capturing desktop screenshots. It can capture images of the entire desktop, a single monitor, the currently active window, the window currently under the mouse, or a rectangular region of the screen.
GermanyEU
Eye of GNOME is the official image viewer for the GNOME Desktop environment. With it, you can view single image files, as well as large image collections. The Eye of GNOME supports a variety of image file formats.
United States
feh is an X11 image viewer aimed mostly at console users. Unlike most other viewers, it does not have a fancy GUI, but simply displays images. It is controlled via commandline arguments and configurable key/mouse actions.
GermanyEU
sxiv is a simple image viewer for X. It only has the most basic features required for fast image viewing.
GermanyEU
