Randomizer Box

Mystery Box

Load an example:
Draw1

12 items

About this tool

A mystery box generator is a free online tool that hides a random item until you tap to open the box. Load it with your own prizes, dares or names, pick a sound, then open the box to reveal one at random. Tap again for a new result — perfect for games, classrooms and lucky-dip moments.

How to use it

  1. Edit the list to add your own surprises, or load a ready-made example.
  2. Pick a sound, and turn on 'no repeats' or 'pick a box' if you like.
  3. Tap the box to open it and reveal a random item.
  4. Tap again for another, or copy the list link to share.

Ways to use a mystery box

  • Classroom rewardslet a student open the box for a random prize or brain break.
  • Game prizeshand out random rewards or forfeits on game night.
  • Party lucky dipa digital tombola for birthdays and events.
  • Team decisionsdrop in names and let the box pick who's up next.
  • Giveawaysadd the entries and open the box to draw a winner.

How the random pick works

Every open draws from your list using your browser's cryptographically secure randomness, so each result is unbiased. Turn on 'no repeats' and the box works through the whole list without duplicates before starting over.

Mystery box vs. a spinning wheel

A mystery box and a 'mystery box wheel' do the same job — pick one item at random — but the box hides the result until you open it, which builds a little suspense. Prefer to watch a wheel spin? Try the prize wheel; for a card-flip reveal, see mystery card.

Example lists to copy

  • PrizesSticker · Extra 5-min break · Choose the music · Small treat · Bonus point
  • Dares10 star jumps · Sing a chorus · Best dance move · Funny face · Give a compliment
  • Yes / NoYes! · No · Ask again · Definitely · Not today
  • Numbers1 to 20, for quick draws and turn order.

Frequently asked questions

How does the mystery box work?
Tap the box and it opens to reveal one random item from your list. Tap again for another, turn on 'no repeats' to draw without duplicates, or 'pick a box' to choose one of three.
Can I put my own items in the box?
Yes — the list is fully editable, so you can fill the box with your own prizes, forfeits, names or numbers, or load a ready-made example.
Is there a free online mystery box generator?
Yes — this one is completely free with no sign-up, runs in your browser, and there's no limit on how many times you open the box.
Can I draw without repeats?
Yes — turn on 'no repeats' and the box gives each item only once until the list is empty, then reshuffles. Great for raffles and taking turns.
Is the result truly random?
Yes. Every outcome uses your browser's cryptographically secure randomness, so it is unbiased and unpredictable — just for fun.