Divvy Pixel curates public domain images from various sources. Images provided on their main site and online galleries are on public domain and can be used personally or commercially. Users can browse and download the images individually or all at once.
Texturegen provides free high-resolution textures and backgrounds. As of September 2015, there are more than 1,100 textures available. Users can search by keywords or browse by categories.
Pixabay is a photo community that provides images on public domain. The site contains curated images contributed by photographers around the world. As of September 2015, there are more than 470,000 photographs, vectors and illustrations. Users can search by keywords or browse by various categories.
Founded by a startup based in Switzerland, PLiXS is a database of free high resolution images. As of August 2015, there are close to 3,400 images, contributed by photographers around the world. Users can search or filter their search by photo filters and categories.
From vectors to PSD files, icons and stock photos, Freepik provides resources for graphic and web design. As of August 2015, the site has received more than 440 million downloads. Developed by “a team of designers, developers, professionals of marketing, communication and administration” based in Spain, Freepik offers two types of content: free and exclusive graphic resources by Freepik, and graphic resources belonging to others. Users can search or browse by categories.
ISO Republic provides exclusive stock images for creatives. It is founded in 2014 by English photographer and designer, Tom Eversley. The mission is to “provide high-quality images to be used by designers, developers, bloggers, marketers and social media teams”.