MikuMikuDance

MikuMikuDance, commonly abbreviated to MMD, is a proprietary freeware 3D animation program. It allows users to create 3D animated movies and was originally produced for the Vocaloid character Hatsune Miku, a 16-year-old girl with long turquoise twintails whose singing voice comes from a synthesizer application. The software was programmed by Yu Higuchi (HiguchiM) and has gone through significant upgrades since its creation. Its production was made as part of the VOCALOID Promotion Video Project (VPVP).

As MMD is used exclusively for posing and animation, modelers employ 3D modeling programs, such as Blender or Metasequoia, to create the model. Sound and music can also be added to create music videos, short films, and fan-made stories. The motion data used to animate the characters can be exported as .vmd (Vocaloid Motion Data) files and .vpd (Vocaloid Pose Data) files, respectively. The exported files can then be imported into other projects made with software that can use the file types. This allows data to be shared between users.