Freebase may refer to: Free base or freebase, the pure basic form of an amine, as opposed to its salt form Freebase (database), a former online database service Freebase (mixtape), 2014 mixtape by 2 Chainz An original song by the Mike Flowers Pops on their 1996 LP "A Groovy Place" Freebass, a musical supergroup Free-bass accordion, a bellows instrument