Utilities

Random number generator

Generate random integers or decimals within any range. Supports bulk output.

Minimum

Maximum

Decimal places

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Generate numbers

100% private. All processing happens locally in your browser — no files or data are ever sent to a server.

How to use Random number generator

01 Fill in the required values using the fields provided
02 Results calculate automatically as you type
03 Copy or note the result — all calculations stay on your device

Frequently asked questions

Common questions about Random number generator.

Is Random number generator free to use?

Yes, Random number generator is completely free. No account, subscription, or payment is ever required — just open the page and start using it.

Does Random number generator upload my data to a server?

No. Random number generator runs entirely in your web browser using client-side JavaScript. Your files, text, and data never leave your device, making it 100% private.

Can I use Random number generator on my phone or tablet?

Yes. Random number generator is fully responsive and works on all modern smartphones, tablets, and desktop browsers without installing any app.

Are these results accurate enough to rely on?

Random number generator uses well-established formulas and provides accurate estimates for everyday use. For financial, medical, or legal decisions, always consult a qualified professional.

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About Random number generator

The Random Number Generator produces integers or decimal numbers within any range you define, using the browser's `crypto.getRandomValues` function for cryptographically unpredictable results — unlike Math.random(), which is not designed for security-sensitive use. Bulk output mode lets you generate up to hundreds of numbers at once, formatted as a list ready to copy. Common uses include simulating dice rolls and coin flips for games, selecting random samples from datasets, generating test data, picking lottery numbers, and making genuinely random decisions.