Starting JupyterLab

Start JupyterLab using:

jupyter lab

JupyterLab will open automatically in your browser.

You may access JupyterLab by entering the notebook server’s URL into the browser. JupyterLab sessions always reside in a workspace. The default workspace is the main /lab URL:


Like the classic notebook, JupyterLab provides a way for users to copy URLs that open a specific notebook or file. Additionally, JupyterLab URLs are an advanced part of the user interface that allows for managing workspaces. To learn more about URLs in Jupyterlab, visit JupyterLab URLs.

To open the classic Notebook from JupyterLab, select “Launch Classic Notebook” from the JupyterLab Help menu, or you can change the URL from /lab to /tree.

JupyterLab runs on top of Jupyter Server, so see the security section of Jupyter Server’s documentation for security-related information.