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Local Development#

If you are looking to contribute you will need to have a local development environment. See the Developer Install for full details.

Broadly this involves cloning the repository, installing the pre-reqs, and InvokeAI (in editable form). Assuming this is working, choose your area of focus.


We use mkdocs for our documentation with the material theme. Documentation is written in markdown files under the ./docs folder and then built into a static website for hosting with GitHub Pages at

To contribute to the documentation you'll need to install the dependencies. Note the use of ".

pip install ".[docs]"

Now, to run the documentation locally with hot-reloading for changes made.

mkdocs serve

You'll then be prompted to connect to in order to access.


The backend is contained within the ./invokeai/backend folder structure. To get started however please install the development dependencies.

From the root of the repository run the following command. Note the use of ".

pip install ".[test]"

This in an optional group of packages which is defined within the pyproject.toml and will be required for testing the changes you make the the code.

Running Tests#

We use pytest for our test suite. Tests can be found under the ./tests folder and can be run with a single pytest command. Optionally, to review test coverage you can append --cov.

pytest --cov

Test outcomes and coverage will be reported in the terminal. In addition a more detailed report is created in both XML and HTML format in the ./coverage folder. The HTML one in particular can help identify missing statements requiring tests to ensure coverage. This can be run by opening ./coverage/html/index.html.

For example.

pytest --cov; open ./coverage/html/index.html
HTML coverage report output



Front End#

Last update: March 5, 2023
Created: March 5, 2023