Similar to my favorite free photo site, Unsplash; Pexel offers royalty-free photos submitted by semi and pro photographers.
Be warned though, Pexel – free stock photos seems to have been invaded by hipster models, posing in completely unrealistic scenarios, resulting in an absolute ton of images that actual designers could never find a reason to use.
But they all look fantastic!
Check out Pexel – free stock photos. If you like it, they offer a desktop app, Photoshop and MS Office add-in as well.