MMD Tools is a utility add-on for Blender that focuses on editing MikuMikuDance (MMD) models. It handles the full round-trip of MMD assets, importing and exporting model data in the .pmd and .pmx formats, motion data in .vmd, and pose data in .vpd.
Beyond format handling, the add-on covers a range of editing tasks. You can chop and join model parts, edit rigid bodies, adjust materials, and work on motion data, keeping MMD model and animation work inside Blender. The extension requests a Files permission to read and write PMX, PMD, VMD and VPD data from and to disk.
MMD Tools is compatible with Blender 4.2 LTS and newer and is distributed under the GNU General Public License v3.0 or later. It ranks among the more popular add-ons on the Blender Extensions platform. The current version, 4.5.13, is a maintenance release with no new features. It can be added by dragging and dropping into Blender or installed from disk.