The Internet Archive is an American digital library with the stated mission of "universal access to all knowledge". It provides free public access to collections of digitized materials, including websites, software applications/games, music, movies/videos, moving images, and millions of books. In addition to its archiving function, the Archive is an activist organization, advocating a free and open Internet. As of February 2021, the Internet Archive holds over 29 million books and texts, 8.7 million movies, videos and TV shows, 629,000 software programs, 16 million audio files, 3.8 million images, 224,000 audio files, and 534 billion web pages in the Wayback Machine.