Chitu.com. Chitu.com can provide high-definition original children's coloring pictures, children's coloring elements, etc. can be downloaded and used online. Chitu.com, founded in 2013, belongs to Shanghai Pintu Network Technology Co. It is a domestic excellent "design & office" creative service platform. The website has millions of genuine materials, covering print ads, video sound, background elements, illustrations, paintings, e-commerce design, office documents, fonts, new media graphics and so on.