From their website:
MediaGoblin is a free software media publishing platform that anyone can run. You can think of it as a decentralized alternative to Flickr, YouTube, SoundCloud, etc. It's also:
- The perfect tool to show and share your media!
- Building tools to empower the world through decentralization!
- Built for extensibility. Multiple media types, including video support!
- Part of the GNU project and devoted to user freedom.
- Powered by a community of people like you.
Go to the Mediagoblin listing.