Fast and compact image viewer/converter trying to be simple for beginners and powerful for professionals. Many supported file formats and features. Features included: multi-language support, Thumbnail option, Painting, slideshow, toolbar skins, fast directory browsing, batch...

FastStone Image Viewer is a fast, stable, user-friendly image browser, converter and editor. It has a nice array of features that include image viewing, management, comparison, red-eye removal, emailing, resizing, cropping and color adjustments.

Comprehensive photo management software for viewing, batch converting, editing and resizing images and creating thumbnail sheets.

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.

digiKam is an advanced digital photo management application which makes importing and organizing digital photos a "snap". The photos are organized in albums which can be sorted chronologically, by folder layout or by custom collections.

darktable is a virtual lighttable and darkroom for photographers: it manages your digital negatives in a database and lets you view them through a zoomable lighttable. it also enables you to develop raw images and enhance them.

End-to-end encrypted alternative to Google Photos / iCloud Photos, that makes it easy to backup and share photos and videos.

XnView Classic is an efficient image viewer, browser and converter for Windows with built-in support for over 500 image formats.

Maximize your photo editing and organizing abilities across platforms with non-destructive editing in high resolution and 1 TB of cloud storage. Harness simple tools like sliders to achieve your ideal image and automatically apply tags. Access and utilize Lightroom on mobile, web, or desktop.