Random Number Generator

Generate pseudorandom numbers with customizable ranges, formats, and display options for testing, games, examples, and everyday decisions.

Your entered lists and generated output are handled in the browser. The generation details panel may request your public IP from an external lookup service.
Count: 0Range: 1-100Type: integer
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Click "Generate" to create random numbers

What is a Random Number Generator?

Random Number Generator is a tool for producing pseudorandom numbers in a specified range for simulations, testing, examples, games, or everyday decision-making. It can generate integers and floating-point numbers with customizable precision.

The generator uses the 'random' JavaScript library. It is useful for non-security work such as mock data, classroom examples, and casual sampling, but it should not be used for passwords, tokens, regulated drawings, or security decisions.

Key Benefits:

  • Flexible Range: Set any minimum and maximum values from negative to positive numbers
  • Batch Generation: Generate up to 100 numbers at once with one click
  • Duplicate Control: Choose to allow or prevent duplicate numbers in results
  • Number Types: Generate integers or floating-point numbers with custom decimal precision
  • Visual Layout: Customizable column display (1-10 columns) for better readability

Useful for developers, educators, and anyone who needs configurable random-looking numbers for testing, analysis practice, or informal decisions.