Random Number Generator
Generate random numbers instantly with custom range, quantity and format. Perfect for games, lotteries, decisions and more — 100% free.
Quick Presets
Click to instantly configure and generate.
Quick Presets
Click to instantly configure and generate.
How to Use the Random Number Generator?
Set Range
Enter your minimum and maximum values. Default is 1 to 100.
Choose Quantity
Set how many random numbers you need — from 1 to 1000.
Generate & Copy
Click Generate Numbers and copy your results instantly.
What is a Random Number Generator?
A random number generator (RNG) is a tool that produces numbers with no predictable pattern. Our tool uses JavaScript's crypto.getRandomValues() API — a cryptographically secure method — to ensure truly unbiased, random results every time.
Random number generators are used in games, lotteries, statistical sampling, cryptography, simulations, and everyday decisions like picking a winner or choosing a random item from a list.
Common Uses
Frequently Asked Questions
Is this truly random?
Yes. This tool uses crypto.getRandomValues(), a cryptographically secure pseudo-random number generator (CSPRNG) built into modern browsers. It produces unbiased, unpredictable numbers.
Can I generate unique (no duplicate) numbers?
Yes. Enable the No Duplicates option before generating. Note: the quantity must not exceed the range size (e.g., you can't get 10 unique numbers from a range of 1–5).
What is the maximum quantity?
You can generate up to 1000 numbers at once.
Can I use negative numbers?
Yes. Set the minimum to a negative value like -100 and the maximum to 0 or any positive number.
Is this tool free?
Yes, 100% free. No signup, no limits. Generate as many numbers as you need.