Freemocap
Capture and process motion with FreeMoCap, an open-source motion capture project.
About Freemocap
FreeMoCap is an open-source motion capture system for decentralized scientific research, education, and training. It captures and processes motion using a local Python server with a React/Electron graphical interface.
Installation requires a Python 3.9 through 3.11 environment and a choice between CUDA and CPU builds. The repository describes the project as work in progress that might break.
Key features
- Captures and processes motion via local Python server and GUI
- Provides CUDA install for Windows/Linux NVIDIA GPUs
- Provides CPU-only install for macOS and systems without supported GPU
- Runs Python server on localhost:8005 with Electron window
- Supports source install using uv, Node.js, and npm commands
- Requires Python 3.9 through 3.11, with 3.11 recommended
Best for: Researchers, educators, and students who need an open-source motion capture system for study or training.
Good for
- Open-source repository with contribution guidelines
- Offers GPU-accelerated and CPU-only install options
- Described as hardware-and-software-agnostic
Watch out for
- Project states it is work in progress and might break
- Plain pip install without cuda or cpu extra omits the tracker
- Source install does not work with pip install -e ., requires uv
Freemocap at a glance
- Category
- Design & Creative › Video Editing & Animation
- Type
- Open-source project
- Pricing
- Not confirmed. Check the site
- Open source
- Yes · Source code
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
Guides for Video Editing & Animation
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Freemocap FAQ
How do I install and launch FreeMoCap?
Create a Python 3.9 through 3.11 environment, run pip install freemocap[cuda] on Windows/Linux with an NVIDIA GPU or pip install freemocap[cpu] on macOS or without a supported GPU, then run freemocap to open the GUI.
How do I run it from source code?
Clone the repository and run uv sync, start the server with python freemocap/__main__.py on localhost:8005, then in freemocap-ui run npm install and npm run dev to open the Electron GUI.
What license covers the project?
The repository states the project is licensed under the AGPL; see the LICENSE file for details.
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