Yes, "free software" is a competing term used by Free Software Foundation, but they don't certify licenses in the same way. They have a page commenting on different licenses [1] but it's less useful than what OSI does, in terms of defining a term clearly and attempting to be neutral about what licenses it includes.
Perhaps this is because their goal is to promote the GNU licenses, not to be objective about it.
OSI was created in part in reaction to ambiguity and confusion around "free software."
Comments
Yes, "free software" is a competing term used by Free Software Foundation, but they don't certify licenses in the same way. They have a page commenting on different licenses [1] but it's less useful than what OSI does, in terms of defining a term clearly and attempting to be neutral about what licenses it includes.
Perhaps this is because their goal is to promote the GNU licenses, not to be objective about it.
OSI was created in part in reaction to ambiguity and confusion around "free software."
[1] https://www.gnu.org/licenses/license-list.html