XnView
XnView MP/Classic is a free Image Viewer to easily open and edit your photo file. The Image Viewer supports all major image formats (JPEG, TIFF, PNG, GIF, WEBP, PSD, JPEG2000, OpenEXR, camera RAW, HEIC, PDF, DNG, CR2). As Image Viewer you have features like color adjusting, image resizer, cropping, screen capture, metadata editing (IPTC, XMP) and much more. With its easy-to-use explorer-like interface, XnView MP allow you to quickly view your images and photos, but also to make image management. You have features like batch rename, batch converter, duplicate image finder, image compare, but you can also create contact sheets, slideshow.
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Eye Of Gnome
Eye of GNOME is an image viewer. With it you can view images of almost any type. You can manage large collections of images and can display a slideshow. You can also make basic changes to photos like rotating or flipping them, or converting them to a different file format. The images should automatically open in the Image Viewer when you double-click an image file in the file browser. If this is not the case, you should make Image Viewer the default application for viewing images. You can zoom in and out to show more or less of an image on the screen. It is useful if you want to see a large image completely or if you want to inspect the details of an image. The Image Viewer tries to guess the file format to save the image in based on the file extension you choose. If you don't recognize the file extension you type, or if you don't know which one to use, click Supported Image Files in the Save Image window. This will allow you to choose a file type from the drop down box.
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FastStone MaxView
FastStone MaxView is a fast, compact and innovative image viewer that supports all major graphic formats. Its intuitive layout lets you view images in a variety of ways. It even lets you view images in password-protected ZIP, RAR and 7-Zip archive files directly and instantly, which is a perfect solution for viewing private images. It also reads comic book files including CBR, CBZ and CB7 formats. It is a handy tool for quickly viewing, rotating, resizing, cropping, annotating and printing images. Auto-hidden menus and toolbars to make the best use of screen space. Many hotkeys for image navigation and manipulation (copy/move/delete/rename/rotate). Undo, redo and mouse wheel support. Its intuitive layout lets you view images in a variety of ways. It even lets you view images in password-protected ZIP, RAR and 7-Zip archive files directly and instantly, which is a perfect solution for viewing private images.
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Ristretto
The Ristretto Image Viewer is an application that can be used to view, and scroll through images. It can be used to run a slideshow of images, open images with other applications like an image-editor or configure an image as the desktop wallpaper. The image types supported by Ristretto are those supported by the gdk-pixbuf library. This library itself supports a number of basic image types (JPEG, PNG, TIFF, etc.), but then relies on optional libraries to extend the range of supported image types. This means that you will have to install these libraries yourself to extend the range of image types supported by Ristretto. Examples: libwmf, libopenraw, libavif, libheif, libjxl, librsvg, webp-pixbuf-loader. The following describes how you can use Ristretto, and how you can configure it to your preferences.
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