RANDOMBOX is a collection of random draw tools that make everyday decisions, big and small, more fun. Ladder game, roulette, random draw, and team divider — all four run right in your browser, no install required.
Key Features
Ladder Game
Enter participants and results to draw a random ladder, then reveal the outcome with an animation that traces the path down.
Spin the Roulette
A spinning wheel that splits your items into equal-sized slices and fairly picks one.
Random Draw
Draws winners from a list, slot-machine style. Supports removing duplicates and picking multiple winners at once.
Team Divider
Shuffles your list and splits it evenly into as many teams as you want, with a card-dealing animation that shows the whole process.
How to Use
- Choose a tool from the top menu — ladder game, roulette, random draw, or team divider.
- Enter your participants, items, or names one per line. You can also click "Fill Sample" to try it out instantly.
- Press the action button and the result is revealed with an animation.
- Everything is calculated right in your browser — nothing is ever sent or saved anywhere.
Frequently Asked Questions
Is it really random?
Yes. Every tool uses your browser's built-in random number generator and gives each item or participant an equal chance. Nothing is rigged to favor a particular outcome.
Are the names or lists I enter saved anywhere?
No. All calculations happen entirely on your own device — nothing you enter is sent to or stored on a server.
Do I need to install anything?
Not at all. All you need is a web browser — it works instantly on desktop or mobile.
How many people can I enter?
The roulette, random draw, and team divider have virtually no limit on list length. For the ladder game, we recommend 2–8 participants for readability.
How can I trust that the results are fair?
The roulette gives every slice the same angle, and the random draw and team divider both use a Fisher–Yates shuffle to mix things without bias. For more detail, check out "Is Random Really Fair?" in our guides.
Does it work offline?
Once you've visited the site, a service worker caches the core files so you can reopen it even without an internet connection.