Parents: Switch to KnightLine!

All the information you used to find by logging in here is now available on the KnightLine platform.

Please access KnightLine to see your student's grades and assignments, and to find school information, forms, and flyers.


Please enter your Username and Password below.

Important Notes:

Parents, Students and Faculty: You have been assigned a user name and password by the school. Please only use the login information you were assigned.

Alumni and Friends:If you have not yet signed up to use our website, please contact the main office at



Forgotten password
Mason Preparatory School
56 Halsey Blvd Charleston, SC 29401
(843) 723-0664 (843) 723-1104