Unsplash - Unsplash is a website with high-quality free HD images. It has a catalog of more than three hundred thousand striking images that are neatly organized with tags. Read more about Unsplash.

Splashy - Breathtaking, auto changing wallpaper app for macOS, Windows, Linux, iOS & Android

Pexels - Find the best free stock images about Browser Home Page. Download all photos and use them even for commercial projects.

Irvue - (previously Unsplash Wallpaper) Gorgeous wallpapers on your Mac.

Image Extractor - Extract.pics is an easy to use tool that allows you to extract, view and download images from any public website.

Splashify - Beautiful desktop wallpapers for Mac and Windows