You can add users as collaborators with read or write access on your personal repository.
Repositories owned by an organization can grant more granular access. For more information, see "What are the different access permissions?"
- Ask for the username of the person you're inviting as a collaborator.
On GitHub Enterprise, navigate to the main page of the repository.
In the repository's right sidebar, click Settings.
In the left sidebar, click Collaborators.
- Under "Collaborators", start typing the collaborator's username.
- Select the collaborator's username from the drop-down menu.
- Click Add collaborator.