Is every option equally likely?

Yes. The spinner uses the browser's cryptographically secure random source with rejection sampling, so each option has exactly the same chance with no bias.

How many options can I add?

As many as you like — just put one per line. You need at least two for the spinner to choose between them.

What is rejection sampling and why does it matter?

A raw random number divided by the option count can slightly favour the first few options when the count does not divide evenly. Rejection sampling discards the small leftover range and re-draws, so every option ends up with an exactly equal probability.

Can the spinner repeat the same result?

Yes. Each spin is independent, so it can land on the same option two or more times in a row — just like a fair die. There is no memory of previous spins.

Is this truly random?

It uses the browser's crypto.getRandomValues, a cryptographically secure pseudo-random generator, rather than the weaker Math.random. For everyday decisions this is effectively unbiased and unpredictable.

What can I use it for?

Anything you want decided by chance: what to eat, which chore to do, whose turn it is, picking a name, choosing a movie, or settling a friendly disagreement without arguing.

Is my list uploaded anywhere?

No. Your options stay in your browser and nothing is sent or stored.

Decision Spinner — Gera Tools

Decision spinner

Stuck choosing between options? List them one per line — where to eat, which task to start, whose turn it is — then spin and let the tool pick fairly for you. It is a quick, no-arguments way to settle everyday choices.

How it works

Type your options, one per line; the tool trims blank lines and counts the rest. When you spin, it draws a random number from the browser’s cryptographically secure generator (crypto.getRandomValues) and maps it to an option index. To keep every option exactly equally likely, it uses rejection sampling: if a draw falls in the small leftover range that would skew the result, it is discarded and re-drawn. You need at least two options to spin, and each spin is independent — repeats are possible, just like rolling a fair die.

Example

With five options entered:

Pizza
Sushi
Burgers
Salad
Tacos

Each has a 1 in 5 = 20% chance on every spin. Press Spin and one is selected at random — say, Tacos. Spin again and the odds reset to 20% each, so any option, including the one just picked, can come up next.

Options	Probability each
2	50%
4	25%
5	20%
10	10%

The whole thing runs in your browser with nothing uploaded.