How duplicate names are handled
Duplicate names are collapsed case-insensitively by default, so a roster containing "Ava", "ava", and "Noah" becomes two participants. The status line reports how many entries were removed, so the change is visible rather than silent. Turn offCollapse duplicate names when a repeated entry is intentional.
Drawing without repeats
After a draw, choose Remove from future draws to take that name off the wheel. The drawn name is added to the session history below the roster so you can confirm who has already been called. This is the workflow for a class where every student should be picked once.
What stays private
Names live in this browser tab. Nothing is uploaded, saved to an account, or written into the page address. The draw history is cleared when the page is closed or reloaded, which keeps a class roster from lingering on a shared device.