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Use a whole number from 1 to 1,000,000. Keep the step unchanged when consistency matters.
per action
Use Subtract for a correction. Use Reset only when a new tally begins.
Adjust current tally
Leave blank for an unlabeled tally, or add up to 80 characters for handoff context.
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Random Picker Pick random names or rows with reproducible seeds and optional weights, then review group limits and estimated inclusion chances before sharing the draw.
CPS Test Measure clicks per second in a timed browser trial, compare pace and consistency, and filter near-duplicate presses when checking switch bounce.
Sports Scoreboard Tracker Keep a live multi-sport scoreboard with preset scoring actions, editable counters, undoable event history and clear manual-correction checks.
Boxing Scoreboard Tracker Track a boxing scorecard round by round, keep warnings separate from point deductions, and audit how every event changes the running total.

A click tally is a small measurement system. Before counting people, laps, parts, repetitions, or batches, decide what one press represents and keep that unit unchanged. A total of 48 could mean 48 people or 48 cartons of 12; the number alone cannot recover the counting rule.

Manual tallies work best when events arrive one at a time and the operator can see each event clearly. Fixed batch steps reduce repetitive input for bundled items, but they also make a missed or partial batch more costly. A step of 10 saves presses only while every press really represents ten events.

  • Use one press per event when omissions matter more than speed.
  • Use a batch step only when the batch size is stable and visible.
  • Record corrections instead of quietly restarting when an extra press can be identified.

A live counter is not a substitute for a controlled attendance, inventory, or safety record. Interruptions, double presses, and events that happen outside the operator's view still require a second check against the real-world source.

How to Use This Tool:

Set Step size to the number represented by one press, then add for each event or fixed batch. Use Subtract for an accidental or reversed count. Use Reset only when the current tally and session peak should both return to zero.

  1. Choose a whole-number step from 1 to 1,000,000 and add an optional session label when another person will review the tally.
  2. Press the large add target as events occur; keep the step unchanged during the session unless the counting unit intentionally changes.
  3. Review the current count, session maximum, and correction share before handing off the result.

Interpreting Results:

The current count is the live tally after the latest action. The session maximum is the highest value reached since the latest reset, so a lower current count means at least one subtraction occurred after the peak. Correction share measures subtract actions, not the number of individual items removed.

Use the activity ledger to reconcile a surprising change. Only the 20 most recent actions remain visible, so the ledger is a short operational trace rather than a permanent audit record.

Technical Details:

Each action reduces the current session to a new non-negative integer state. Addition increases the count by the selected step. Subtraction decreases it by the same step but never below zero. Reset sets both the current count and session maximum to zero while recording a reset action.

Formula Core

The next count depends on the current count C, step s, and chosen action.

C′ = { C+sfor Add max⁡(0,C−s)for Subtract 0for Reset

The peak after an add is the greater of the previous peak and the new count. A reset clears the peak; subtraction leaves it unchanged.

correction share = subtract actionsadd actions+subtract actions
gap from peak = session maximum − current count

The correction share is zero when no add or subtract action exists. It is displayed as a percentage, while counts and steps remain whole numbers. The supported current count and session maximum are 0 to 1,000,000,000,000; an addition that would exceed that ceiling is blocked.