Mondo Knows Tools
List Randomizer
Shuffle a list into a random order. Use the free list randomizer below to get an instant answer, with the formula shown so you can check the maths and trust the result. Free, private, and no sign-up.
Commas and semicolons work too.
Leave blank to keep every item.
Mondo says
Fill in the fields, then press Shuffle.
How it works
Paste anything that needs reordering, one item per line. Names, ticket numbers, chores, songs, questions. Every possible order is equally likely, and nothing is uploaded: the shuffle happens in your browser tab.
The formula
Fisher-Yates shuffle: for i from n-1 down to 1, swap item i with a uniformly random item from 0 to i.List Randomizer: common questions
- What does the List Randomizer work out?
- Shuffle a list into a random order. It is one of the Randomizers & Pickers tools on Mondo Knows.
- How is the List Randomizer calculated?
- Paste anything that needs reordering, one item per line. Names, ticket numbers, chores, songs, questions. The maths is short enough to check by hand: Fisher-Yates shuffle: for i from n-1 down to 1, swap item i with a uniformly random item from 0 to i.
- Do I need to sign up, and is my data stored?
- No sign-up, and nothing you type is sent anywhere. The calculation runs in your own browser, so the figures stay on your device and the page works offline once loaded.
Mondo also knows
Random Name PickerFair way to pick one name, or several, from a group.đ˛ Randomizers & PickersRandom Team GeneratorSplit a list of players into evenly sized teams.đ˛ Randomizers & PickersRandom Choice GeneratorLet the coin decide between your options.đ˛ Randomizers & PickersLottery Number GeneratorDraw unique lottery numbers in sorted order.đ˛ Randomizers & Pickers
Estimates for general guidance only. This is not financial, medical or legal advice. Everything runs in your browser and nothing you type is stored.