Ladder Lottery Creator

Create a ladder lottery from participants and results, then trace the lines to reveal the outcome

Naujinimų informacijaPridėta ladder lottery kūrimo funkcija su linijų sekimo efektu rezultatų rodytiPeržiūrėti atnaujinimus

Features

Auto-generate just by entering names

Create a ladder lottery by entering participants one per line

Reveal results with line-tracing animation

Select a name to see the path advance and the result open with animation

Freely set 2–40 people and outcomes

Results can be freely edited one per line

Reproduce the same lottery with a shared URL

Others see the same participant order and line layout when opening the issued URL

How to use

Enter participant names

Input names one per line in the participants field, from 2 to 40 people

Edit the results

Change each result line to prizes, outcomes, or assignments

Create the ladder lottery

Press "Create ladder lottery" to generate vertical and horizontal lines

Select a name and trace

Press a participant's name to see the path advance and reveal the result

Check all results

Press "Show all results" to display a list of names and outcomes

Use cases

Assign roles for gatherings

Fairly determine who handles payments or penalties on the spot

Assign seating and presentation order

Allocate classroom and event seats and presentation sequence

Pick prize winners

Draw raffle winners while showing the screen to all participants

Assign duties and roles

Distribute cleaning duties and positions fairly among all people

Background knowledge

Why does each person get exactly one result?

A ladder lottery works by a simple rule: descend a vertical line, and each time you hit a horizontal line, move to the neighboring vertical line. Since each horizontal line swaps only two vertical lines, every participant reaches a different result.

Repeated swaps：Each horizontal line is a swap of two vertical lines, and no matter how many are stacked, the one-to-one correspondence remains.
The same result tracing backwards：Tracing upward from a result always returns to the original participant, so outcomes never duplicate or disappear.

Origin and names of ladder lottery

Ladder lottery originally used lines radiating from the center for each participant, and the shape resembled the halo of Amitabha Buddha, which gave it its name. The ladder-like shape seen today became popular later.

Ladder-like shape：The current form with vertical and horizontal lines is easier to draw as the number of people increases and better hides results.
Names in English：In English-speaking regions, it is sometimes called "ladder lottery" or "ghost leg".