FixThatAppAll Tools
Utility

Random Number Picker

Generate random numbers in custom ranges for giveaways and decisions.

How This Tool Works

This tool uses your browser's built-in Math.random() function to generate cryptographically pseudo-random integers within a range you define. You set a minimum value, a maximum value, and how many numbers to pick. The tool guarantees each number is within your specified range (inclusive on both ends).

Common uses include giveaway winner selection, random sampling for testing, deciding between options, generating lottery number sets, and classroom activities like random student selection.

How to Use

  1. Enter a minimum value in the Min field (default: 1).
  2. Enter a maximum value in the Max field (default: 100). The max must be greater than or equal to min.
  3. Enter how many numbers you want in the Count field. For a single draw, leave it at 1.
  4. Click Pick. Results are shown immediately. Click Pick again for a new set of numbers.

Common Questions

Can the same number appear twice in multiple picks?

Yes, unless the tool explicitly samples without replacement. Each pick is independent, so the same number can appear more than once if you generate multiple numbers. This is equivalent to picking from a bag and putting the number back before each draw.

Is this suitable for lottery or gambling?

This tool uses Math.random(), which is a pseudorandom number generator (PRNG) — not a cryptographically secure random number generator (CSPRNG). It is fine for casual draws, giveaways, and sampling. For cryptographic or legally regulated applications, use a certified hardware RNG.

What is the maximum range I can use?

JavaScript's Math.random() is limited by floating-point precision to integers up to 2^53 (about 9 quadrillion). For practical purposes, any range you'd realistically use (1–10,000,000) works without issues.