Bratz Babyz made their debut in 2004 with the 1st edition of the Bratz Babyz, featuring a line up of Cloe, Jade, Sasha, and Yasmin. The franchise ran from 2004 until 2008, closing out with the Milk Carton line. The brand has seen a recent relaunch in 2024, announced in 2023, that reproduced the first two waves of the series. A Bratz Babyz Minis line has also launched, which showcases past dolls and playsets as mini-figures.
In 2005, the Babyz became Big Babyz! The first line produced the core four (in different outfits than their debut) as larger (closer to baby doll) sizes. This sub-franchise ran from 2005 until 2009, closing out with the Super Skaterz line.