Free to use · No sign-up
Random Number Generator
Choose a range. Draw one number or a whole set, with repeats only when you want them.
Your random numbers
Set a range and generate your first number.
Try 1–100 for a quick pick.
Numbers are generated in your browser. Each batch is a fresh draw; the no-repeat option applies within one batch.
Using this tool
Set the range before you draw
Both endpoints are included. A minimum of 1 and maximum of 100 means every integer from 1 through 100 is eligible. Use negative numbers when you need them. This tool accepts whole numbers from −1,000,000,000 to 1,000,000,000 and generates up to 100 results at once.
Choose whether a number can appear twice
Allow repeats for independent draws, such as simulating a six-sided die with a range of 1 to 6. Select “No repeats in this batch” when you need distinct numbers. A batch cannot contain more unique numbers than the range provides. Starting another batch makes the full range available again.
Keep draw order or sort for reading
Sorting changes the display order of the selected values. It does not make low numbers more likely to be selected. Leave sorting off when the sequence itself determines a turn order. Copy the result if you need a record, because refreshing this page clears the current batch.
How the numbers are selected
The generator uses the browser’s cryptographic random values with rejection sampling to avoid modulo bias. All calculation happens in your browser. It does not produce a certified draw record, synchronize devices, or provide an independent audit of a competition.
Frequently asked questions
Can I generate numbers from 1 to 100 without repeats?
Yes. Set the minimum to 1, maximum to 100, choose a quantity from 1 to 100, and select “No repeats in this batch”. Each number can appear at most once in that batch.
Why did the same number appear in a later batch?
No repeats applies within one batch. Every click starts a fresh selection from the full range, so a number from an earlier batch can appear again.
Can I use decimals or generate passwords?
This page generates integers only. It is designed for ordinary games and activities, not for passwords, security tokens, or regulated prize draws.