Apps similar to Preview include SumatraPDF, which is free and open source. Other options are Okular, IrfanView, XnView MP and ImageGlass. You're spoiled for choice with Image Viewers like Preview: we list more than 100 alternatives for Windows, Mac, Linux, Android and iPhone.
FastPictureViewer is an award-winning image viewer for the Windows platform, specifically Windows 7, Windows Vista and Windows XP. It was designed and developed in Geneva, Switzerland by Axel Rietschin, building upon 15+ years of experience in industrial imaging software...
Switzerland
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 and RAR archive files directly and instantly, which is...
Canada
FuturixImager is a compact and customizable image viewer. It is capable of opening more then 50 file types, including all most popular ones (GIF, JPEG, PNG, TIFF, JPEG2000, raw, DNG).
Russia
Panels is a CBR/CBZ/PDF comic reader for your iPhone and iPad devices. Enjoy reading your comics in a clean and delightful interface.
Spain
EU
WinQuickLook allows you to select a file in Windows Explorer or on your desktop and then simply press the spacebar to see the contents of the file without having to open it with a special application.
Japan
An attorney who deals with a lot of PDFs set himself with the task of finding a way to preview the PDFs in Windows Explorer (much like Cover Flow view already does in Mac OS X) without actually opening them.
WildBit Viewer is popular, extensive & fast image viewer which includes viewer, slide show, editor, search, profile switcher and multi screen viewer.
FinlandEU
Simple macOS PDF reader with ChatGPT integrated. You can chat with your local PDF. The returned response can cite the page number to ensure correctness.
United States
Phatch is an user friendly, cross-platform Photo Batch Processor and Exif Renamer with a nice graphical user interface. Phatch handles all popular image formats and can duplicate (sub)folder hierarchies.
BelgiumEU
qAllInOne (aka qAIO) is a free open-source software built using Qt to provide users an All-In-One media player, so it can view images, play videos and audio.
