Native macOS app for viewing, annotating, and editing images and PDFs, featuring tools for cropping, rotating, resizing images, rearranging pages, full-screen viewing, markup, document merging, batch conversion, and export in multiple formats.




nomacs is described as 'Free, open source image viewer, which supports multiple platforms. You can use it for viewing all common image formats including RAW and psd images' and is a very popular Image Viewer in the photos & graphics category. There are more than 50 alternatives to nomacs for a variety of platforms, including Windows, Linux, Mac, Flathub and Xfce apps. The best nomacs alternative is IrfanView. It's not free, so if you're looking for a free alternative, you could try IrfanView or XnView MP. Other great apps like nomacs are XnView Classic, FastStone Image Viewer, qView and Gwenview.
Native macOS app for viewing, annotating, and editing images and PDFs, featuring tools for cropping, rotating, resizing images, rearranging pages, full-screen viewing, markup, document merging, batch conversion, and export in multiple formats.




gThumb is an image viewer and browser for the GNOME Desktop. It also includes an importer tool for transferring photos from cameras.




Photos is a digital photograph manipulation application developed by Apple, intended to be less complex than its predecessor iPhoto .




Apple Photos is the most popular Web-based alternative to nomacs.
Easily gather, organize and protect all of your photos across all your devices. Use Mylio to rediscover, enjoy, and share your memories—anytime, anywhere.



Mylio Photos is the most popular Android & Android Tablet alternative to nomacs.




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.

PhoXoSee is a blazing fast and lightweight image viewer, Highly optimized at only 3.8MB in size, it brings you ultra-fast loading speeds and minimal memory usage. It features powerful real-time image processing that enhances your viewing experience.



Waterfall-style image viewer for macOS, offering a smooth and immersive browsing experience.


Pixyway is a fresh new picture viewer for Windows. It has been designed to be an 'everyday' picture viewer tool like Google Picasa viewer used to be! By the way, if you liked Picasa viewer, you will notice some references to it.




You can use the Photos app to view or edit photos and videos in your Pictures library and on OneDrive, and to import photos and videos. The Photos app includes a wide range of editing options to enhance your photos, from automatic fixes to advanced adjustments.




Geeqie is a free open software image viewer and organiser program for Linux, FreeBSD and other Unix-like operating systems.



PhotoQt is a fast and simple, good looking, yet powerful and highly configurable image viewer.



