Humanizer initiates in Heredia, Costa Rica in the year of 2008 by Moises Cascante and Daniel Arroyo. Both decided to start a death metal band. In 2009 it is decided to name the band Humanizer that describes better the philosophy of the group. By the middle of the year 2010 they contract the drummer Gabriel Chávez ex-akhenaton to record an EP, in 2013 Gerhard Gonzales join the band as lead guitar.