nanoem

nanoem is an implementation of MikuMikuDance (MMD) that runs on macOS and other platforms. It reproduces the core MMD functionality, allowing users to load, view, and animate MMD models without relying on Windows‑only DirectX9. The application also includes a model‑editing feature comparable to PMXEditor, enabling basic adjustments to model geometry and textures.

The software targets creators and hobbyists who work with MMD content but need a lightweight, portable solution that works on non‑Windows systems such as macOS, Linux, ARM‑based devices like Apple M1, and Raspberry Pi. It supports multiple graphics backends—including DirectX11, Metal, and OpenGL—so it can adapt to the graphics stack of the host environment.

nanoem is designed for portability and quick startup, with a small binary footprint. It is built with CMake, requires a C++14‑compatible compiler, and can be compiled using Ninja. The project provides documentation and build scripts, and it is released under MPL 2.0 and MIT licenses.