Adobe Photoshop - Adobe Photoshop is a webtop application for editing images and photos online.
Pmx Editor - PMX Editor is for editing 3D model data to be used in MikuMiku Dance.
Sketch - Professional digital design for Mac.
3DTin - 3DTin is a browser based 3D modelling tool.
Adobe Illustrator - Adobe Illustrator is a vector graphics editor.
DeleD CE - DeleD is a 3D modeler and level-editor combined into one.