The Xiph.Org Foundation is a non-profit organization dedicated to developing open-source multimedia technologies. Founded in 2000, it focuses on creating free software for audio and video compression, ensuring that users can access and share media without restrictions. One of its most notable projects is Ogg Vorbis, an audio compression format that provides high-quality sound while being free from licensing fees. The foundation also supports other projects like Theora for video and Opus for audio, promoting open standards in multimedia to foster innovation and accessibility.