Random Number Generator

Generate random numbers within a specific range.

What is a Random Number Generator (RNG)?

A **Random Number Generator (RNG)** is a tool that produces a sequence of numbers that lack any predictable pattern. In computing, true randomness is hard to achieve, so most software uses "Pseudo-Random Number Generators" (PRNG). These are algorithms that create sequences that appear random enough for most applications, such as gaming, simulations, and basic cryptography.

Common Applications & Use Cases

  • Giveaways & Contests: Fairly pick a winner from a list of entries (e.g., pick a number between 1 and 500).
  • Board Games & RPGs: Replace physical dice. Generate numbers 1-6 (D6) or 1-20 (D20) for role-playing games.
  • Decision Making: Can't decide? Assign options to numbers and let the RNG decide for you.
  • Statistical Sampling: Select random participants from a population for surveys or research studies.
  • Software Testing: Developers use random data to test how their applications handle unpredictable inputs.

Features of This Tool

This **Random Number Generator** is designed for flexibility:

  • Custom Range: Set any Minimum and Maximum values (negative numbers supported).
  • Multiple Numbers: Generate up to 100 numbers at once.
  • Unique Mode: Functionality to prevent duplicates (e.g., for drawing distinct lottery balls).
  • Sorting: Automatically sort the output for easier reading.

Is it Truly Random?

This tool uses the browser's native `Math.random()` function, which is a high-quality PRNG suitable for all general-purpose needs. For military-grade cryptography or scientific modeling requiring entropy-based randomness, specialized hardware RNGs are recommended.