Generators

Random Number Generator

Generate random numbers within any custom range. Set your minimum, maximum, and quantity — up to 1,000 numbers at once. Copy results instantly.

Custom Min & Max
Up to 1,000 at Once
Copy Output
Instant Results

Minimum

Maximum

Count

Set range and generate numbers

Random number generator

Choose minimum and maximum values, then generate one or more random results. Use unique mode when selecting a sample without replacement.

const value = Math.floor(Math.random() * (max - min + 1)) + min;

Frequently Asked Questions

Is this generator truly random?: The generator uses JavaScript's Math.random(), which is a pseudo-random number generator (PRNG). It is suitable for games, simulations, and general use but is NOT cryptographically secure. For security-critical randomness (e.g. cryptographic keys), use the GUID or Password Generator which use crypto.getRandomValues().
Can I generate decimal numbers?: Yes. Set the decimal places option to 1–10 to generate floating-point numbers like 3.14 or 99.9999. Set decimal places to 0 for whole integers.
What is the maximum range supported?: You can set any min and max value as long as max > min. Values up to JavaScript's safe integer range (±9,007,199,254,740,991) are supported, though very large ranges may produce less uniform distributions in practice.
Can I generate multiple numbers at once?: Yes. Generate 1 to 1000 numbers in a single click. Use the 'No duplicates' option to ensure each number appears at most once - the count cannot exceed the range size in this case.
What output formats are available?: Results can be displayed as a numbered list, a comma-separated list, or a JSON array. You can copy the output or download it as a .txt file.

Disclaimer

This tool is provided for general informational and utility purposes only. Results may be inaccurate, incomplete, outdated, or contain errors. Always verify results before relying on or using them.

Some tools may use AI, automated processing, third-party services, or server-side processing. Do not rely on these tools as a substitute for professional advice.

Use at your own risk. BestToolOnline makes no guarantees regarding the accuracy, reliability, completeness, availability, or suitability of results, to the maximum extent permitted by applicable law.

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Frequently Asked Questions

Is this generator truly random?

The generator uses JavaScript's Math.random(), which is a pseudo-random number generator (PRNG). It is suitable for games, simulations, and general use but is NOT cryptographically secure. For security-critical randomness (e.g. cryptographic keys), use the GUID or Password Generator which use crypto.getRandomValues().

Can I generate decimal numbers?

Yes. Set the decimal places option to 1–10 to generate floating-point numbers like 3.14 or 99.9999. Set decimal places to 0 for whole integers.

What is the maximum range supported?

You can set any min and max value as long as max > min. Values up to JavaScript's safe integer range (±9,007,199,254,740,991) are supported, though very large ranges may produce less uniform distributions in practice.

Can I generate multiple numbers at once?

Yes. Generate 1 to 1000 numbers in a single click. Use the 'No duplicates' option to ensure each number appears at most once - the count cannot exceed the range size in this case.

What output formats are available?

Results can be displayed as a numbered list, a comma-separated list, or a JSON array. You can copy the output or download it as a .txt file.

Disclaimer

Some tools may use AI, automated processing, third-party services, or server-side processing. Do not rely on these tools as a substitute for professional advice.