Unsplash

[1][2] Unsplash has been cited as one of the world's leading photography websites by Forbes, Design Hub, CNET, Medium and The Next Web.

Due to the volume of photo submissions, the site employed an editorial team and "curators" picked from the Unsplash community, including Guy Kawasaki, Nas, Khoi Vinh, Amanda Hesser and Om Malik.

While it gives downloaders the right to "copy, modify, distribute and use the photos for free, including commercial purposes, without asking permission from or providing attribution to the photographer or Unsplash",[13] the Unsplash terms of service prohibit selling unaltered copies, including selling the photos as prints or printed on physical goods.

[15] In addition to its website, Unsplash provides a public application programming interface (API) that answers more than 3.8 billion photo requests per month.

[20] The book raised $106,000 on Kickstarter and included contributions from Harvard law professor and CC0 inventor Lawrence Lessig, and designer Tobias van Schneider.

[21] Beyond its website and API, Unsplash has hosted photo walks in cities around the world including Tokyo, Montreal, Toronto and Boston.

An example of a CC0 image added before the license change. 200,000 other images can only be identified by hand.