MONAI Label supports following OS with GPU/CUDA enabled.


Make sure you have python 3.x version environment with PyTorch and CUDA installed.

  • Install Python

  • Install the following Python libraries

python -m pip install --upgrade pip setuptools wheel

# Install latest stable version for pytorch
pip install torch==1.9.0+cu111 torchvision==0.10.0+cu111 torchaudio===0.9.0 -f

# Check if cuda enabled
python -c "import torch; print(torch.cuda.is_available())"

Install From PyPI

Milestone release

To install the current milestone release:

pip install monailabel

Weekly preview release

To install the weekly preview release:

pip install monailabel-weekly

The weekly build is released to PyPI every Sunday with a pre-release build number dev[%y%U].

From GitHub

To install latest from github main branch

pip install git+


If you have installed the PyPI release version using pip install monailabel, please run pip uninstall monailabel before using the commands from this section. Because pip by default prefers the milestone release.

The milestone versions are currently planned and released every few months. As the codebase is under active development, you may want to install MONAI from GitHub for the latest features


Simple monailabel command will help user to download sample apps, datasets and run server.

monailabel --help

Downloading Sample Apps or Datasets

You can download sample apps and datasets from monailabel CLI.

# Download Sample Apps
monailabel apps # List sample apps
monailabel apps --download --name deepedit --output apps

# Download MSD Datasets
monailabel datasets # List sample datasets
monailabel datasets --download --name Task02_Heart --output datasets

Starting Server

You can start server using monailabel CLI

monailabel start_server --app apps\deepedit --studies datasets\Task02_Heart\imagesTr


Once you start the MONAI Label Server, by default it will be up and serving at Open the serving URL in browser. It will provide you the list of Rest APIs available.

3D Slicer Plugin

Download Preview Release from and install MONAI Label plugin from Slicer Extension Manager.

Refer 3D Slicer plugin for other options to install and run MONAI Label plugin in 3D Slicer.


To avoid accidentally using an older Slicer version, you may want to uninstall any previously installed 3D Slicer package.