What a tally counter is for

A tally counter (or clicker counter) is the digital equivalent of those little metal click-counters you see at concert doors, bird-watching outings, and gym laps. You press a button, the number goes up by one. That's it — but the simplicity is the point. When you're focused on the thing you're counting (heads, birds, reps), you don't want to do mental arithmetic at the same time.

This page upgrades the classic single-button clicker in three useful ways:

What's different here

• Multiple counters at once — track inventory across 9 product types, count yes / no / maybe answers at once, or run separate counters for several disciplines
• Custom step value — add 5 or 10 or 25 per click instead of just 1 (useful for cash-drawer counts or large inventory)
• Undo + history — accidentally double-clicked? Hit Ctrl+Z. The last 100 increments are kept per counter so you can roll back any mistake.
• Keyboard shortcuts — Space and ↑ to add to the active counter, ↓ to subtract, Ctrl+Z to undo, digits 1–9 to switch the active counter
• Pop animation on every tap so you can feel the count register even when you're not looking at the screen

Common use cases

• Crowd / attendance counting — door staff, ushers, event organisers
• Bird-watching / wildlife surveys — separate counter per species
• Exercise reps — push-ups, squats, planks (with the step value for sets)
• Inventory — counting boxes / pallets / parts
• Behavioural research / classroom observation — frequency counts for different behaviours
• Card / game scoring — track points per player on a side screen

Everything is stored in your browser — refresh and the counters are still there. Nothing is sent to a server.