Set the range
Enter the smallest and largest possible integer. The range is inclusive.
Random Number Generator
Pick a number. Any number.
Set a minimum and maximum, then generate a fair random integer in an instant. Both endpoints can be selected.
Your random number
Generated privately in your browser with the Web Crypto API.
How to generate a random number
The default range is 1 to 100. Change it for games, classroom activities, giveaways, sampling, or any quick decision.
Adjust if needed
Open More options to generate several values, remove duplicates, or sort the result.
Generate
Select Generate number. Repeat as often as you like or copy the result.
Popular random number ranges
Number from 1 to 10
Useful for quick choices, small games, and simple scoring.
Number from 1 to 100
A classic range for classroom activities, raffles, and percentages.
Six unique numbers
Set quantity to 6 and turn on No duplicates for a lottery-style set.
What is a random number generator?
A random number generator selects a value from a defined range so that every possible value has an equal chance. Whimivo generates integers locally in your browser; the values you enter and the results you receive are not sent to a Whimivo server.
For everyday uses such as games, drawings, teaching, test data, and personal decisions, browser-based cryptographic randomness provides results that are fast and difficult to predict.
Frequently asked questions
Are the minimum and maximum included?
Yes. A range of 1 to 10 can return both 1 and 10.
Can I generate more than one number?
Yes. Open More options and choose a quantity from 1 to 100.
How do I prevent duplicate numbers?
Turn on No duplicates. The quantity cannot be larger than the number of integers available in your range.
Does Whimivo save my numbers?
No. Generation happens in your browser, and Whimivo does not receive or store your inputs or results.
Can I use this for passwords or encryption keys?
Use a dedicated password or cryptographic key generator for security credentials. This tool is intended for general-purpose number selection.