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RANDOM NUMBER GENERATOR

Generate random integers within any range. Fast, free, and private.

Private by design No signup · Free

Settings

History
No history yet

Results

Click Generate

Frequently Asked Questions

Is my data saved between sessions?
Data is stored locally in your browser using localStorage. Clearing your browser data will remove it. In Random Number Generator, entries stay in this browser only.
Can I lose my data?
Since data is stored locally, clearing browser data or using a different device will not carry over your information. In Random Number Generator, entries stay in this browser only.
Does this work offline?
Yes. Once loaded, generation uses local randomness fully offline. Draw numbers, pick winners or shuffle anywhere with no connection.
Is my data private?
Absolutely. Everything stays in your browser. No data is sent to any server or third party. In Random Number Generator, entries stay in this browser only.
Can I generate truly random numbers?
This tool uses cryptographically secure randomness (Crypto.getRandomValues) when available for better quality random numbers than Math.random alone.
What is the maximum range?
You can set any range from -999,999,999 to 999,999,999. For ranges larger than 16 million, the tool uses Math.random as a fallback.

How to Use

01

Set Range and Count

Pick min, max and quantity, allowing or forbidding duplicates.

02

Draw, Shuffle or Pick

Generate integers and decimals, shuffle lists or pick giveaway winners.

03

Copy Winners

Copy results or the history log for draws and audits.

How to Calculate

Integers draw uniformly from min to max inclusive via a secure random source. No-repeat mode shuffles the full range with Fisher-Yates so every value appears exactly once.

About the Random Number Generator

The Random Number Generator lets you pick random integers within any range. Generate one number or a batch of up to 20, with an option for all-unique results.

Everything runs in your browser — no data is sent anywhere. The tool uses Crypto.getRandomValues for better randomness quality when available. Draws integers, decimals, shuffles lists and picks giveaway winners with duplicate control and history log.

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Methodology & feedback

Figures run locally in your browser from the values you enter (page updated ). Estimates are educational only — verify finance, tax and health decisions with a qualified professional (see Disclaimer). Spotted an error? Report it via contact and we correct with a new update date.

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