Free Random Number Generator
Generate random numbers within any range. Choose how many numbers to generate and whether to allow duplicates.
Generate Random Numbers
Quick Presets
How to Use the Random Number Generator
Set Your Number Range
Enter the minimum and maximum values for your random numbers. For example, set 1-100 for lottery picks or 1-6 for dice simulation.
Choose Quantity
Specify how many random numbers you want to generate. You can generate a single number or hundreds at once for sampling.
Configure Options
Decide whether to allow duplicate numbers. Disable duplicates for raffles where each number should only appear once.
Generate and Copy
Click "Generate" to create your random numbers instantly. Copy the results to use them for your lottery, raffle, game, or statistical sampling.
Pro tip: Your data is processed entirely in your browser. Nothing is sent to any server, ensuring complete privacy.
About Random Number Generation
Random number generators (RNGs) are algorithms that produce sequences of numbers that lack any pattern. Our generator uses browser-based randomization to produce numbers that are suitable for games, drawings, sampling, and general-purpose randomization needs. Each number has an equal probability of being selected within your specified range.
Common Uses
- Lottery & Raffles: Pick winning numbers fairly
- Games: Dice rolls, card draws, game mechanics
- Sampling: Select random items from a population
- Decision Making: Random selection between options
- Education: Math exercises and probability lessons
Frequently Asked Questions
How does a random number generator work?
Our random number generator uses JavaScript's Math.random() function combined with the crypto API for enhanced randomness. It generates pseudo-random numbers within your specified range using an algorithm that produces statistically random results.
Are the numbers truly random?
Computers generate pseudo-random numbers using algorithms that produce sequences that appear random and pass statistical tests. For most purposes (games, sampling, simulations), these are effectively random. For cryptographic use, specialized cryptographically secure generators are needed.
Can I generate random numbers without repeats?
Yes! Uncheck the "Allow duplicate numbers" option to ensure each generated number is unique. Note that you cannot generate more unique numbers than exist in your specified range.
What can I use random numbers for?
Random numbers are useful for: lottery number picks, raffles and drawings, game development, statistical sampling, decision making, password generation, shuffling items, Monte Carlo simulations, and more.
Is there a limit to how many numbers I can generate?
You can generate as many numbers as you need. For very large quantities, performance may vary. When generating unique numbers (no duplicates), you're limited by the size of your number range.
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