# MuJoCo

Fast, accurate physics engine for robotics and biomechanics research. MuJoCo is free, with no paid plan attached, at github.com.

## Facts

- **Pricing tier:** Free
- **Works on:** macOS, Windows, Linux, CLI, Self-hosted
- **Works in browser:** No

## Capabilities

- Fast, accurate physics engine for robotics and biomechanics research
- Python bindings, MJX on GPU/TPU via JAX
- Apache-2.0

## FAQ

### What is MuJoCo?

MuJoCo is listed under Robotics & Embodied AI, in the AI Models & Local Execution category on Flocci AI Tools. Fast, accurate physics engine for robotics and biomechanics research. It is free, with no paid plan attached, and it lives at github.com.

### Is MuJoCo free?

MuJoCo is listed as fully free — there is no paid tier attached to it in the catalog. That makes it one of the 397 entries on Flocci AI Tools with no upgrade path built in.

### Can I use MuJoCo in a browser, or is there an app?

MuJoCo needs to be installed or self-hosted — it doesn't run in a browser tab. It is available on Mac, Windows, Linux, the command line and self-hosting.

### What can MuJoCo do?

MuJoCo does 3 things the catalog singles out: Fast, accurate physics engine for robotics and biomechanics research; python bindings, mjx on gpu/tpu via jax; apache-2.0.

### What is the best free alternative to MuJoCo?

NVIDIA Cosmos is the closest free alternative: it sits in the same Robotics & Embodied AI sub-category and is free. Genesis, LeRobot (Hugging Face) and NVIDIA Isaac GR00T also start free. The full list is on the alternatives page.

## Related

- [MuJoCo alternatives](https://aitools.flocci.in/alternatives/mujoco)
- [Robotics & Embodied AI](https://aitools.flocci.in/category/ai-models-local-execution/robotics-embodied-ai)
- [Best free robotics and embodied AI platforms](https://aitools.flocci.in/best/best-robotics-embodied-ai)
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Source: Flocci AI Tools — https://aitools.flocci.in/tool/mujoco

Facts last verified: October 2026