A 26-episode anime television series set in an alternate universe titled Idolmaster: Xenoglossia, produced by Sunrise and directed by Tatsuyuki Nagai, aired in Japan between April and October 2007 on Kansai TV. The series centers around mecha and reimagines the ten prospective idols as fighter pilots of those robots, with eight of them posing as students. Xenoglossia has no relation to the games apart from its characters. A 17-minute original video animation (OVA) episode titled The Idolmaster Live For You!, produced by Actas and directed by Keiichiro Kawaguchi, was included in the limited edition of Live For You! released on February 28, 2008. The OVA involves Haruka, Chihaya and Miki trying to reach Tokyo in time to catch up with the rest of the girls in their latest concert after the trio gets lost in the middle of nowhere.

A faithful anime television series adaptation, produced by A-1 Pictures and directed by Atsushi Nishigori, aired 25 episodes between July and December 2011 on TBS. An OVA episode was released on June 16, 2012. Additional OVA episodes were bundled with the Shiny Festa games released on October 25, 2012, with a different episode for each of the three versions. An anime film adaptation, titled The Idolmaster Movie: Beyond the Brilliant Future!, was released on January 25, 2014.[72]

An original net animation adaptation of the spin-off manga by Akane, Puchimas! Petit Idolmaster, was produced by Gathering and directed by Mankyƫ. It aired 64 short episodes between January and March 2013, and was also simulcast by Funimation. The series revolves around the 765 Pro idols as they are accompanied by super-deformed versions of themselves. An OVA episode was bundled with ASCII Media Works' Dengeki Maoh magazine in October 2012.[73] A second season, titled Puchimas!! Puchi Puchi Idolmaster, began streaming in April 2014.

An animated music video of the spin-off game The Idolmaster Cinderella Girls, featuring the song "Onegai! Cinderella", was streamed wit