Free stock images are available from most stock photo sites. These free images will come with license agreements, but it won’t cost you anything to use them for their intended purpose.
Free stock images are normally professional, high-quality images. However, there are normally fewer image choices available when compared to paid stock images. While stock image sites are effectively obliged to maintain quality, they will still reserve their best photos for paying customers.
License restrictions for free stock photos will vary by provider. You can find free stock images with Creative Commons Licenses.
There are benefits to going to professional stock sites for your free images. First, stock images maintain a level of quality that you won’t find from user-uploaded image sites. Second, your license agreements will always be straightforward with no strings attached. Using images from sites like Flickr can present difficulties for businesses.
In general, free stock images are great, so long as they meet your needs. If you have more comprehensive and specific needs, however, you should consider premium stock photos.