Random Number Generator

Generate random numbers with custom ranges and options

How to Use

Step 1: Set the minimum and maximum values for your range

Step 2: Choose how many random numbers you want to generate

Step 3: Decide if you want to allow duplicate numbers

Step 4: Click "Generate Numbers" to create your random numbers

Step 5: Copy the results or regenerate for different numbers

Frequently Asked Questions

How does the random number generator work?

The random number generator uses JavaScript's Math.random() function to generate cryptographically random numbers within your specified range. You set the minimum and maximum values, choose how many numbers to generate, and decide whether duplicates are allowed. All generation happens in your browser for maximum privacy.

Can I generate unique random numbers without duplicates?

Yes, simply uncheck the 'Allow duplicate numbers' option. The tool will ensure all generated numbers are unique within your specified range. Note that the number of unique numbers you can generate is limited by your range (e.g., in a 1-10 range, you can only generate up to 10 unique numbers).

What is the random number generator used for?

Random number generators are useful for lottery number selection, game development, statistical sampling, password generation, random winner selection, raffle draws, dice simulation, cryptographic keys, A/B testing, and any scenario requiring unbiased random selection.

Is the random number generation truly random?

The tool uses JavaScript's Math.random() which generates pseudo-random numbers that are sufficiently random for most practical purposes including games, simulations, and general use. While not truly random at the quantum level, the distribution is uniform and unpredictable for standard applications.

What is the maximum range for random numbers?

You can set any minimum and maximum values within JavaScript's number limits (approximately ±9 quadrillion). For practical purposes, there's no restriction on range size, allowing you to generate random numbers for any application from small ranges like 1-10 to large ranges like 1-1000000.

How many random numbers can I generate at once?

You can generate as many random numbers as needed in a single batch. When generating unique numbers (no duplicates), the maximum count is limited by your range size. For example, in a 1-100 range, you can generate up to 100 unique numbers.

Can I use negative numbers in the range?

Yes, the random number generator supports negative numbers. You can set negative values for both minimum and maximum, such as -100 to -1, or mix negative and positive ranges like -50 to 50. The tool handles all integer ranges correctly.

Does the tool save or store my generated numbers?

No, all number generation happens entirely in your browser. Nothing is stored on servers or transmitted over the network. Your generated numbers and settings remain completely private and are cleared when you close the page or regenerate.