Random Number Generator - Free Online RNG Tool

A random number generator (RNG) creates unpredictable numbers within a range you set. Use it for games, lotteries, statistical sampling, or picking winners from a list. This tool uses cryptographically secure randomness in your browser, so no numbers are sent to a server.

1. Set your range: Enter a minimum and maximum value.
2. Choose quantity: Pick how many random numbers you need.
3. Generate: Click Generate and copy or download the results.

• Cryptographic randomness: Numbers come from your browser's secure random API, not a predictable algorithm.
• Flexible ranges: Generate anything from 1–10 coin flips to million-digit lottery picks.
• Instant results: Get numbers immediately without sign-ups or downloads.

Use case 1: Gaming and raffles

Pick random winners for giveaways, assign player order, or simulate dice rolls for tabletop games.

Use case 2: Statistical sampling

Select random sample IDs from a dataset for surveys, A/B tests, or research projects.

Use case 3: Decision making

Settle debates or break ties by generating a random number and assigning outcomes to ranges.

Basic example

Settings: Min 1, Max 100, Quantity 1
Output: 73

Advanced example

Settings: Min 1, Max 1000000, Quantity 5
Output:

284719
912456
47832
659102
831290

Negative ranges

If you enter a minimum larger than the maximum, swap the values. The tool may auto-correct or show an error.

Floating-point numbers

This generator produces integers. For decimals, generate an integer range then divide in your code.

• Use unique numbers (no duplicates) when drawing raffle winners to avoid picking the same person twice.
• For reproducible tests, note down the numbers and re-enter them; browser RNGs can't replay seeds.
• Pair with the random choice generator when you have named options instead of numbers.

• Create secure passwords with the password generator.
• Pick from a list of names or items using the random choice picker.
• Generate unique identifiers with the UUID generator.

Random numbers generate locally in your browser using the Web Crypto API. No data is uploaded, so your ranges and results stay private.