This page holds no student names. The list is read in this browser only and is not uploaded anywhere. File: one student per row, CSV. Columns: ID, Name, then optional Row, Seat (row 1 = front row, seat 1 = left) and Dashed (1 = seat was empty on the chart). You can also drop the file on this window.
Attendance
Click a seat to mark that student absent; click again to undo. Absent students are never drawn. If the class list has a seating chart, the seats follow it with the front desk at the bottom, and dashed seats were empty on the chart or have no seat in the list.
Log
The log is kept in this browser as you go. Save log writes a CSV file (opens in Excel) with attendance, every turn and every attendance change. Send that file to the instructor.