Blog
Guides on fairness, probability, and getting more out of the tools on this site — including exactly how crypto.getRandomValues works, why Math.random() is the wrong choice for a fair draw, and practical walkthroughs for classrooms, stream giveaways, and game night.
Every Way to Make a Random Choice
A complete guide to every random-decision method on this site, and when each one is the right tool.
How Random Is a Spinner Wheel? The Fairness Math
The arc-proportion math behind a fair spinner wheel, and how true randomness differs from Math.random().
20 Classroom Picker Ideas Teachers Actually Use
Real classroom-tested ways to use a name picker, a spinner, and a team generator.
How to Run a Fair Giveaway on Stream
A streamer's guide to picking a verifiably fair winner from a chat or entrant list.
Dice Probability Basics for Board-Game Night
The real odds behind d6, d20, and multi-dice rolls, explained for non-mathematicians.
Secret Santa Without the Spreadsheet
How to run a fair, private Secret Santa draw without anyone seeing who has whom.
Why Math.random() Isn't Actually Random
The difference between pseudo-random number generators and cryptographic randomness, in plain language.
Best Icebreaker Games for Groups of Any Size
Icebreaker formats that pair naturally with a name picker or team generator.
How to Pick a Fair Giveaway Winner
A step-by-step method for running a defensible, transparent contest draw.
Party Game Randomizers for Game Night
How to use dice, wheels, and pickers to run better party games.
Back-to-School Classroom Tools for Teachers
A seasonal roundup of the classroom-friendliest tools on the site.
Coin Flip vs. Dice Roll: Probability Explained
Comparing the odds and use cases of a coin flip against a dice roll.