Summary • Features • Examples • Development • Credits • License

• Lots of games have decks of cards that you draw from only once at the start of the game
• These decks might only have a handful of cards, which makes them hard to shuffle
• Oftentimes, they just get a quick and dirty shuffle to avoid the hassle
• Most of the cards get returned to the box, so most of that shuffling goes to waste

Avoid the shuffling and pick some random cards instead

e.g. If you need 5 starting cards from a deck of 25 possible ones:

• Generate 5 random numbers from 1 to 25 (without duplicates)
  • Let's say you get 3, 4, 11, 12, and 17
• Pick out the 3rd, 4th, 11th, 12th, and 17th cards from the deck and you're set

• Mobile-first design with number-picker wheels and simple toggles
• Progressive web app (PWA) support for adding to home screen
• Query params for bookmarking custom initial values

ckant.com/board-game-rng

ckant.com/board-game-rng?quantity=5&from=5&to=20&duplicates

npm install

npm run dev -- --open

See Svelte and SvelteKit docs

npm run build

npm run preview -- --open

• React Wheel Picker for the great picker wheels (ported to svelte)
• pure-rand for the (unbiased) uniform int distribution
• Svelte for the fun web framework

Copyright © 2025 Chris Kant.
This project is MIT licensed.