In this article, I’ll guide to download stock images without a watermark, and that too for free. Keep in mind that images could be copyrighted and downloading or using commercial stock images are illegal. Although, you can download them for free (only for educational and non-commercial use) with watermark and that too in a low resolution.
Here, to make your job easy, sharing a list of free sites of stock images library that do not use watermark. If you care about linking original source you can without any hassle, but that is optional.
List of free stock images websites:
There are some commercial stock image sites that require licenses such as Fotolia, iStock, Shutterstock, etc. So be careful while using their images. Sometimes image search engines show those commercial images in high quality because that site owner may have purchased that stock image for their own use.