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Random number generator

World's simplest randomization tool

Free online random number generator. Just press a button and get your random number. There are no ads, popups or nonsense, just a random number generator. Press a button, get a random number. Created by developers for developers.
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Range Options
Start at this number
End at this number
How many numbers to generate?
Number Options
How many digits in fraction?
Random number generator tool What is a random number generator?
This tool generates random numbers. It lets you set the number range, including negative numbers, and you can choose how many numbers to generate.
Random number generator examples Click to use
Generate numbers in range -100 to 100
This example generates 10 random numbers in range -100 to 100.
Required options
These options will be used automatically if you select this example.
Start at this number
End at this number
How many numbers to generate?
Generate binary choices 0 and 1
This example generates 15 random binary numbers that are only zero and one.
Required options
These options will be used automatically if you select this example.
Start at this number
End at this number
How many numbers to generate?
Generate fractional numbers
This example generates 8 fractional numbers between -1 and 1.
Required options
These options will be used automatically if you select this example.
Start at this number
End at this number
How many numbers to generate?
Pro tips Master online randomization tools
You can pass options to this tool using their codes as query arguments and it will automatically compute output. To get the code of an option, just hover over its icon. Here's how to type it in your browser's address bar. Click to try!
https://onlinerandomtools.com/generate-random-numbers?&range-start=-100&range-end=100&count=10&whole-nums=true
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