Enciclopedia Libre Universal en Español (English: Universal Free Encyclopedia in Spanish) was a Spanish-language wiki-based online encyclopedia that started as a fork of the Spanish Wikipedia, released under the Creative Commons Attribution-ShareAlike License 3.0 and using the same MediaWiki software.

The Enciclopedia Libre was founded by contributors to the Spanish Wikipedia who decided to start an independent project.

[4] Key issues included concerns about censorship and the possibility of advertising on Wikipedia.

[5] Edgar Enyedy stated the main reasons for splitting at that time as:[3] In 2011, Enyedy said that the sole reason for the failure of Enciclopedia Libre Universal en Español as a long-term project was that it "was not intended to last.

He further said "Nowadays, the romantic point of view is that EL survived and is still going strong."