Attendance Counter
Press In when someone enters and Out when someone leaves. The number inside, the totals and the peak update straight away. It works as a people counter or crowd counter at any door.
Chart: in and out per hour, people inside
Settings: capacity, warning level, people already inside
How to use the attendance counter
Tap In (+) each time a person enters and Out (−) each time a person leaves. The big number is how many people are inside now. Below it you see the total in, the total out and the peak, which is the highest number inside so far and the time it happened. Every movement is saved with the time, and the Hour by hour table shows how many came in and went out in each hour.
Open Settings to enter a capacity. The panel turns amber when the number inside reaches the warning level (90% of capacity unless you change it) and red with a horn at capacity. If people are already inside when you start counting, enter that number too.
For a vehicle survey, the traffic counter splits counts by type in 15-minute blocks. For a simple head count with no exits, the click counter is enough.
Counting at several doors
Choose Several doors to give each entrance its own In and Out buttons and its own totals, while the big number shows everyone inside the venue. With one device per door, each device counts only its own door, so add the totals together at the end. With a keyboard, press 1 to 9 to pick a door, then use the arrow keys.
Chart, print and share
Open Chart for people in and out per hour as bars, and the number inside over time as a line. Print sheet prints a report with totals, the peak and its time, and the hour by hour table. Print blank sheet gives a paper door count sheet with 15-minute rows over 8 hours. Share link copies your doors, capacity and warning level, never the counts.
Keyboard shortcuts
- ↑, Space or Enter: one in
- ↓ or Backspace: one out
- 1 to 9: pick a door (Several doors)
- U or Ctrl+Z: undo
- R: reset the counts
- F: full screen
- M: sound on or off
Holding a key down counts once.
Questions
Is the count kept if the page reloads?
Yes. Every tap is saved in your browser at once, so a refresh, a closed tab or a dead battery does not lose the count. Nothing is sent to a server.
Can the number inside go below zero?
No. Out does nothing when nobody is inside. If people were already in the venue when you started, enter that number in Settings so the count stays right.
What is in the CSV file?
The totals per door, the number inside, the peak and its time, an hour by hour table, and a line for every movement with its time, door and the number inside after it. It opens in Excel, Numbers or Google Sheets.
Does it count people automatically?
No. It counts each tap or key press, so a person at the door taps In or Out. It does not use a camera or a sensor.
Can I use it as a crowd counter at an event?
Yes. Set the venue capacity in Settings, keep the screen on, and use full screen so the number is easy to read. The red state and horn tell you when the limit is reached.
Put this attendance counter on your website
Free for classrooms, clubs, blogs and shops: paste this code into any page. It works the same inside your site, and counts stay in each visitor's own browser. For a dark version, add ?theme=dark after /attendance-counter/ in the code.