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Free Online Random Number Generator

Generate unbiased random numbers for contests, giveaways, games, and statistical sampling using hardware-backed cryptographic randomness.

Generated Number(s)
Total Generated: 1 Sum: 0
Sort Order:
How to Use This Tool

How to Use This Tool – Random Number Generator

01

Set Range (Min & Max)

Define your desired minimum and maximum integer boundaries (e.g., 1 to 100).

02

Specify Quantity & Rules

Choose how many numbers to generate and whether to allow or disallow duplicates.

03

Generate & Sort Results

Generate numbers instantly with cryptographic randomness, with options to sort or copy.

Key Features & Capabilities

Key Features & Capabilities – Random Number Generator

Cryptographically Secure RNG

Uses browser Web Cryptography API (`crypto.getRandomValues`) for genuine statistical randomness.

Unique Numbers Mode

Enforce non-repeating results for fair giveaways, raffles, lotteries, and team selections.

Custom Sorting Options

Sort generated numbers ascending, descending, or keep them in natural generated sequence.

Exclude Specific Numbers

Add comma-separated numbers you wish to exclude from the generated pool.

Visual Dice & Coin Presets

Quick-access presets for coin flips (1-2), standard dice (1-6), D20 gaming dice, and lotto draws.

Instant Export & Copy

Copy results as comma-separated values, space-separated lists, or one per line.

FAQ

Frequently Asked Questions

How random are the numbers generated here?
We use the Web Cryptography API (`window.crypto.getRandomValues`), which provides hardware-entropy backed cryptographically strong pseudo-random values suitable for security and fair contests.
Can I generate numbers with no duplicates (unique set)?
Yes! Toggle the "No Duplicates" setting to ensure every generated number in your batch is completely unique.
What is the maximum range supported?
You can generate numbers between -999,999,999 and +999,999,999 across batches of up to 1,000 numbers at a time.
Can I use this for giveaways and raffles?
Yes. The cryptographic engine ensures an unbiased, fair distribution with equal probability for every number in your specified range.
Does this tool require an internet connection?
No, generation takes place 100% locally on your computer or mobile phone.
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