Random Number Generator

Generate random numbers within any range instantly. Set min, max, quantity, and whether to allow duplicates for lotteries, games, and testing.

Used 42.8K times today

How to Use Random Number Generator

  1. 1

    Set your range

    Enter the minimum and maximum values for your random number range.

  2. 2

    Choose quantity and options

    Specify how many numbers to generate and whether duplicates are allowed.

  3. 3

    Generate and use your numbers

    Click Generate to get your random numbers, then copy them for your lottery, game, or application.

Frequently Asked Questions

Are the numbers truly random?
Yes. The tool uses the browser's cryptographically secure random number generator to produce unpredictable results suitable for games, lotteries, and testing.
Can I generate decimal (floating-point) numbers?
Yes. Toggle decimal mode to generate floating-point numbers with a configurable number of decimal places.
What is the maximum range I can use?
The tool supports JavaScript's full safe integer range, from -9,007,199,254,740,991 to 9,007,199,254,740,991.

About Random Number Generator

The Random Number Generator on Utilko is a versatile tool for anyone who needs unpredictable numbers on demand. Teachers use it to randomly select students, game designers use it to prototype dice mechanics, developers use it to seed test databases, and lottery enthusiasts use it to pick lucky numbers within a defined range.

The generator supports both integers and decimal numbers, configurable ranges, and batch generation without duplicates. All numbers are generated in your browser using a cryptographically secure algorithm, so results are genuinely random and never predictable or repeated across sessions.

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