Managing User Sign Up via Website
Users can sign up for ERPNext account via the ERPNext Website.
As seen above the login / sign-up button appears on the homepage of the website generated using ERPNext.
One might want to disable this feature to prevent anonymous users from signing up via the web.
To do so, Go to
Website > Setup > Website Settings
In website settings doctype navigate to the misc section.
Check the disable SignUp check-box and save the doc.
Now only the login button shall appear and there shall be no option to sign-up via the website. You can always revert back by following the same steps.