XnViewMP is a free software to view, organise, convert graphics and photos files or to create slide show, contact sheet, HTML pages.
XnView MP vs FastStone Image Viewer opinions
Because, XnView have many functions and it's a multi platform application.
nomacs is a free, open source image viewer, which supports multiple platforms. You can use it for viewing all common image formats including RAW and psd images.
nomacs vs FastStone Image Viewer opinions
Editing option are not great
Qt5 image viewer with optional video support. Contribute to easymodo/qimgv development by creating an account on GitHub.
Gwenview is an image viewer for KDE. It can load and save all image formats supported by KDE, but Gwenview can also browse GIMP files (*.xcf). Gwenview does not try to replace your favorite image editor, so it only features the most simple image manipulations: rotation and...
gThumb is an image viewer and browser for the GNOME Desktop. It also includes an importer tool for transferring photos from cameras.
gThumb vs FastStone Image Viewer opinions
Misses some key features, just too simple.
Tonfotos simplifies browsing of large photo collection by grouping shots by events, dates, people, locations and so on. Quickly find what you need regardless where files are stored - on your computer, external drives or NAS.
QuickViewer is a graphic image viewer for comfortable browsing of many images.
This software performs reading of image data in advance. And drawing the imported image data on the screen with OpenGL. You can browse images with much smoother response than ever before.
The latest version (1.1.8) was released in December 2019.
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.This app doesn't have any features at the moment.