Creative Commons All of these images are available to use. It has 2 billion images!
Flickr – The Commons If you stay in the Commons section they are all free to use. However, it’s easy to get lost down the rabbit hole from one artist, which might show ones that are copywritten. Once you’ve selected and image, look for “attribution” below the image and choose ones that have the CC, CCO, O or a small person icon. They should have verbiage that says it is in the public domain or attribution (show photographer’s name when using). Please avoid the ones that have the ©. Type in what you’re looking for and browse. There are a lot of beautiful, unscripted slices of daily life here!
WikiMedia Commons All images and sounds are available for free. Takes some digging to find good stuff.
Wikiart All free, in public domain.
National Gallery of Art Beautiful artwork, all free to use.
Pexels Over 70,000 images free.
Useum Has many links to museums around the world as well as images on their site, all free to use.
Paris Museums Paris Musées is a public entity that oversees the 14 municipal museums of Paris, free to download. Website is in French.
Pixabay Over 1.7 million images free to use, photos and illustrations. They advertise for iStock, so don’t choose first line of images.
Rawpixel They offer free unlimited downloads from their Public domain collection so make sure to sign up for the free membership, not the paid membership. It won’t let you download unless you sign up. It will indicate if you’re trying to download a paid image, so not to worry.
Unsplash Mostly modern photos. All in public domain, free to use. Just be aware that they advertise for iStock, which brings you to another site for paid images. These are usually below and also shown once you click on a free image (shown below that image).