When you do not have images of your own, it is best to look for them in online services that offer free images, illustrations, icons and other visual content.Here is list of 8 Amazing Sites With Best Free Stock Photos.
Gratisography
Free high resolution images for either personal or commercial use. New images are added each week. The author of images on this site is Ryan McGuire. They are organized in six main categories (Animals, Nature, Objects, People, Urban, Whimsical), and you can browse them via a search tool. By clicking on the image, you automatically download it to your computer.
Magdeleine
You will find images of nature, people, animals, food, or technology. It is interesting that the images can be browsed by category, through a search engine or even by a dominant color. Interesting!
Pexels
Pexels provides high quality and completely free stock photos licensed under the Creative Commons Zero (CC0) license. All photos are nicely tagged, searchable and also easy to discover through their discover pages.
Unsplash
Unsplash offers a large collection of free high-resolution photos and has become one of the best sources for stock images. The Unsplash team combs through new submissions and features the very best photos on their homepage. All photos are released for free under the Unsplash license.
Pixabay
Free images, illustrations, vector graphics, and video. An exceptionally good search engine at the top of the service allows you to choose the media type, image orientation, category, size, and even the dominant color.
Images are divided into 20 categories and I am sure that you will find something that suits your needs here.
Raumrot
A good selection of free, high resolution images that you can use for either personal or commercial purposes. Images are organized into “sets”, but also in categories, which makes browsing and searching for an adequate image much easier.
A small minus here is that there is no clear search engine with which you can look for images, as you can instead download images just as a set, a pack of 20 or more images.
SkitterPhoto
SkitterPhoto offers a wide variety of free stock photos and are released under Creative Commons CC0. All pictures are authentic and created by Skitterphoto’s owners.
New Old Stock
Vintage photos from the public archives free of known copyright restrictions.