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Mujoco

github.com/google-deepmind/mujoco Science Learning Open-source projectOpen source

MuJoCo simulates general-purpose physics involving multiple joints and contact dynamics.

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github.com/google-deepmind/mujoco
Mujoco homepage screenshot

About Mujoco

MuJoCo, short for Multi-Joint dynamics with Contact, is a general-purpose physics engine for fast and accurate simulation of articulated structures that interact with their environment. The repository states that it is intended to support research and development in robotics, biomechanics, graphics and animation, machine learning, and related areas. It is maintained by Google DeepMind and is open source.

MuJoCo has a C API aimed at researchers and developers. Its runtime works on preallocated low-level data structures built by an XML compiler, and it includes a native interactive viewer rendered in OpenGL. Python bindings and a Unity game engine plug-in are also provided. Prebuilt binaries are available for Linux, Windows (x86-64 only), and macOS, and the Python package can be installed from PyPI.

Key features

  • Simulates articulated multi-joint structures interacting with their environment through contact dynamics
  • C API with a runtime tuned for performance on preallocated data structures
  • XML compiler that builds the model data structures used at runtime
  • Native interactive viewer, called simulate, with OpenGL rendering
  • Python bindings installable from PyPI with pip
  • Unity game engine plug-in, plus tutorial notebooks on Google Colab
Best for: Researchers and developers in robotics, biomechanics, graphics and animation, or machine learning who need fast simulation of articulated structures in contact with their surroundings.
Good for
  • Runtime is tuned to maximize performance, according to the repository
  • Prebuilt binaries are provided for Linux, Windows, and macOS, and are the recommended installation method
  • Python bindings come pre-packaged with MuJoCo and install with a single pip command
Watch out for
  • The C API is intended for researchers and developers rather than general users
  • Windows binaries are available for x86-64 only
  • The commit at the tip of the main branch may be unstable

Mujoco at a glance

Type
Open-source project
Pricing
Not confirmed. Check the site
Open source
Yes · Source code
Language
English
Last checked
Oct 6, 2026 · Online when checked
Listed
Oct 5, 2026
open sourcepython

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Mujoco FAQ

How can I get started with MuJoCo?
The repository suggests running simulate, the native interactive viewer, on your machine, following the Getting Started section of the documentation. Python users can also explore tutorial notebooks that run on Google Colab.
How do I install the Python bindings?
Run pip install mujoco. The repository states that Python 3.10 or later is required. Pre-built Linux wheels target manylinux2014.
Where should I report bugs or ask questions?
Bug reports and feature requests go to GitHub Issues. Questions and requests for help are directed to GitHub Discussions, and should focus on a specific problem or question.
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Listing maintained by Chris McClure and the WebIndexly editors · Updated Oct 12, 2026 · How we rank