Unsplash is a free stock photo site that offers the widest variety of images, with over five million photos and native apps for iOS, Android, and desktop. It's easy to use, with a simple search bar and category tabs for inspiration. Pixabay hosts more than 4.1 million photos, illustrations, vector graphics, and videos, all free to use. Pexels offers a wide variety of free photos and videos, with high-quality resolutions and partnerships with graphic design tools like Canva. Burst is a free stock photo site powered by Shopify, offering thousands of images for eCommerce businesses. New Old Stock publishes vintage photos from the public archives, but with limited search functionality. 123RF offers AI-generated images alongside human-generated photos, with pre-selected sizes for social media and easy filtering options. Flickr is a photo sharing social network that brings together professional and amateur photographers, with rich metadata and advanced search features. rawpixel is a creative home for visual projects, providing images, vectors, illustrations, public domain art, fonts, stickers, and more. Freepik offers detailed filter options for images, videos, vectors, AI images, icons, fonts, and more. The best free stock photo sites prioritize the photography community, offer unique images, and meet specific criteria such as high-quality resolutions and fast navigation.