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Free Online Random Number Generator

Generate single or multiple random integers within a custom range.

How to use & benefits of Random Number Generator

Draw Fair and Unbiased Random Values

Whether you are drawing lottery tickets, picking winners for giveaways, shuffling board games, or creating test variables for database columns, choosing numbers manually is rarely truly random.

Our free online random number generator outputs mathematically unbiased random values:

  • Custom Ranges: Define custom minimum and maximum integers (e.g. 1-100).
  • Bulk Generation: Generate multiple unique numbers at once.
  • No Duplicates: Option to restrict outputs to unique numbers (preventing repeats in drawings).

The utility runs locally in your browser client using secure cryptographic random parameters.

Key Benefits & Features

✓
Unique Value Filter

Toggle "No Duplicates" to ensure raffle tickets aren't drawn twice.

✓
Speedy Bulk Output

Draw up to 1,000 random integers in a split second.

✓
Cryptographically Secure Option

Employs Javascript standard random math libraries.

How to Use the Random Number Generator Step-by-Step

This utility runs entirely inside your browser using client-side JavaScript. We prioritize your security: none of your inputted text is logged or stored.

  1. 1

    Define the minimum and maximum boundaries of your number range.

  2. 2

    Enter the quantity of random numbers to generate.

  3. 3

    Check "Allow Duplicates" or "Exclude Duplicates" and click "Generate".

Practical Examples

Input Example

Min: 1, Max: 10, Count: 3, No Duplicates

Expected Output
Result: 4, 9, 2

Frequently Asked Questions (FAQ)

Can I use this for prize drawings?▼

Yes! Toggle "No Duplicates" and generate the exact number of winners from your participant list range.

Is the generation truly random?▼

It uses pseudo-random number generator algorithms implemented in modern browsers, which are highly random and perfect for giveaways and gaming.

Can I generate decimal values?▼

This generator is designed for integer values. For decimals, use scientific math libraries.

Explore category: Math & Calculators
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