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Free Random Number Generator

🎲 Random Number Generator

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📋 Copy

Random Number Generator Tool Guide

Random Number Generator Guide

How to Use This Tool

  1. Set Your Range:

    • Enter minimum value in “Min” field

    • Enter maximum value in “Max” field

  2. Click “Generate Number” for a random number within your range

  3. Copy the result with one click

Key Features

✔️ True Randomness: Uses JavaScript’s Math.random()
✔️ Range Flexibility: From -∞ to +∞ (limited by browser capabilities)
✔️ Visual Feedback: Smooth animation on generation
✔️ Copy Function: Instantly copy results

Common Uses

  • Games and contests

  • Statistical sampling

  • Decision making

  • Password generation (when combined with other tools)

  • Classroom activities

Pro Tips

🔹 For multiple numbers: Keep clicking the generate button
🔹 For decimal numbers: Modify the code to use Math.random() * (max - min) + min
🔹 Negative ranges work perfectly (e.g., -100 to 100)

Example Use Cases

PurposeMinMax
Dice roll16
Lottery numbers149
Temperature simulation-2040

Technical Notes

⚠️ Limitations:

  • Maximum safe integer in JavaScript is 9,007,199,254,740,991

  • Minimum value must be ≤ Maximum value

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