Pexels
Pexels provides high quality and completely free stock photos licensed under the Pexels license. All photos are nicely tagged, searchable and also easy to discover through their discover pages.
Related Tools
StockSnap
StockSnap offers hundreds of beautiful, high quality stock photos for just about any use, including commercial usage, for free.
PixaBay
Stunning free images & royalty free stock. Over 1 million+ high quality stock images and videos shared by their talented community.
Unsplash
Beautiful, free images gifted by the world’s most generous community of photographers. Better than any royalty free or stock photos.
Gratisography
The world’s quirkiest collection of free high-resolution pictures, comprised of the world’s best, most creative images.