Guides

Short articles that match the tools on this site. Open a tool when you want to try the example ranges.

How to Use a Random Number GeneratorInclusive endpoints, quantity, copy, and a 1–100 walkthrough. Related tool: number generator. How to Generate Random Numbers Without RepeatsSampling without replacement and why quantity cannot exceed the range. Related tool: unique numbers. Random Number Generator 1 to 100One hundred eligible integers and independent draws. How to Roll Virtual DiceNotation, totals, and why 2d6 sums are uneven. Related tool: dice roller. Coin Flips and Basic ProbabilityHeads, tails, lists, and short-run streaks. Related tools: coin flip and list picker.

Tools

Random number generator · Unique numbers · Dice · Coin flip · List picker