Random Number Generator
Generate integers or decimals with ranges, unique draws, sorting, seeds, and copyable results
1 integer from 1 to 100
42
How to Use the Random Number Generator
Choose the range, output type, and repeatability level that matches the job.
1. Pick integers or decimals
Integer mode is best for dice, winners, IDs, and whole-number ranges. Decimal mode is best for measurements and simulations.
2. Set count and uniqueness
Generate up to 100 results. Use unique integers when you need a raffle-style draw without repeated values.
3. Use a seed when repeatability matters
The same seed and settings reproduce the same results. Leave seed blank when you simply need a fresh random draw.
Random Number Examples
Load common setups for dice, raffles, decimals, and seeded testing.
Random Number Generator FAQ
Practical details about ranges, seeds, unique results, and randomness.
Can this generate more than one random number?
Yes. Set the count to generate up to 100 numbers at once. Integer mode can also enforce unique results when the requested count fits inside the range.
What does the seed field do?
A seed makes the same settings repeat the same sequence. This is useful for examples, classroom exercises, testing, and shared draws where reproducibility matters.
Are seeded results cryptographically secure?
No. Seeded results are deterministic by design. Leave the seed blank for browser randomness, and use specialized security tools for cryptographic keys.
Are the minimum and maximum included?
In integer mode, the minimum and maximum whole numbers are included. In decimal mode, values are generated across the range and rounded to the selected decimal places.
Why can't decimal mode use unique results?
Decimal uniqueness depends on rounding and range size, so the option is intentionally limited to integer mode where the available set is clear.
What is a good dice roll setup?
Use integer mode with min 1, max 6, count equal to the number of dice, and unique turned off because dice can repeat.