Numbers & Letters
Random Month Picker
Flip to a random month on a split-flap board. Twelve even odds, useful for planning games, writing prompts, and scheduling draws.
Click the board or press Space
Saved on this device only.
Weights detected. Alice x3 is 3 times as likely.Add x3 to an entry for 3 times the odds.
Every draw is logged with the time and the seed that produced it.
Nothing drawn yet. Spin the wheel and results will appear here.
Add entries to start tracking who gets picked.
Sorted least-picked first, so the people being missed are always at the top. Counts persist between visits.
The winner is locked in before the wheel moves. These three values let anyone confirm the result wasn’t changed afterwards.
SealedStep 1 · Before
Commitment
Not sealed yet
Show this to your audience before you spin.
Step 2 · After
Secret seed
Revealed once you spin
Proves the result was fixed in advance, not chosen after.
Step 3 · Check
Anyone can verify
Plain SHA-256, no account needed. Send the receipt to anyone who asks.
About this tool
How it works.
Twelve months, each at a shade over 8 percent. Swap in weekdays, quarters, or specific dates and the board treats them exactly the same way. With No Repeats you can build a whole year of rotating assignments, one month per person, without anybody landing on the same one twice.
Everything is editable. Replace the list with your own, weight an entry by adding x3 after it, or switch draw modes above the entry box. Nothing is saved to a server, so your list stays in this browser.
What people use it for
- Assigning a month to each person
- Picking a random birthday month
- Choosing a theme month
Tip
For a rotation, turn on No Repeats and flip twelve times: you end up with a full year of assignments and no month drawn twice.
Is it free?
Yes. This and all 52 other tools on the site are free with no account, no subscription, and no usage limit. You can use it in class, at work, in a giveaway, or on stream without asking permission.
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