Pixabay is a large repository of open images, released under a specific Pixabay license which, with very few limitations, also allows commercial use, modification and distribution without requiring either the citation of the author or the maintenance of the same license.
How to
The search can be done based on different parameters, as in the image below:
Attention: the site also offers images of the shutterstock site that offers images for a fee with variable rates based on resolution and type of use.
