How to install ComfyUI manually in different systems

For the installation of ComfyUI, it is mainly divided into several steps:

1. Create a virtual environment(avoid polluting the system-level Python environment)
2. Clone the ComfyUI code repository
3. Install dependencies
4. Start ComfyUI

You can also refer to ComfyUI CLI to install ComfyUI, it is a command line tool that can easily install ComfyUI and manage its dependencies.

Create a virtual environment

Independent virtual environments are necessary because ComfyUI’s dependencies may conflict with other dependencies on the system, and it can also avoid polluting the system-level Python environment.

Install Miniconda. This will help you install the correct versions of Python and other libraries needed by ComfyUI.

Create an environment with Conda.

conda create -n comfyenv
conda activate comfyenv

Clone the ComfyUI code repository

You need to ensure that you have installed Git on your system. First, you need to open the terminal (command line), then clone the code repository.

Windows

If you have not installed Microsoft Visual C++ Redistributable, please install it here.

Linux

Open Terminal application.

MacOS

Open Terminal application.

git clone [e-mail]:comfyanonymous/ComfyUI.git

Install GPU and ComfyUI dependencies

1. Install GPU dependencies

   Install GPU Dependencies

   Nvidia

   conda install pytorch torchvision torchaudio pytorch-cuda=12.1 -c pytorch -c nvidia
   

   Alternatively, you can install the nightly version of PyTorch.

   Install Nightly

   Install Nightly version (might be more risky)

   conda install pytorch torchvision torchaudio pytorch-cuda=12.1 -c pytorch-nightly -c nvidia
   

   AMD

   pip3 install torch torchvision torchaudio --index-url https://download.pytorch.org/whl/rocm6.0
   

   Alternatively, you can install the nightly version of PyTorch.

   Install Nightly

   Install Nightly version (might be more risky)

   pip3 install --pre torch torchvision torchaudio --index-url https://download.pytorch.org/whl/nightly/rocm6.0
   

   Mac ARM Silicon

   conda install pytorch-nightly::pytorch torchvision torchaudio -c pytorch-nightly
   
2. Install ComfyUI dependencies

   cd ComfyUI
   pip install -r requirements.txt
   
3. Start ComfyUI

   Start the application

   cd ComfyUI
   python main.py
   

How to update ComfyUI

1. pull the latest code

   Use the command line to enter the installation path of ComfyUI, then pull the latest code.

   cd <installation path>/ComfyUI
   git pull
   
2. install the dependencies

   Use the command line to enter the installation path of ComfyUI, then install the dependencies.

   You need to ensure that the current Python environment is the ComfyUI virtual environment, otherwise the dependencies will be installed to the system-level Python environment, polluting the system-level Python environment.

       pip install -r requirements.txt