Random Number Generator

Generate random numbers, roll dice, and flip coins. Includes range, duplicates, sorting, and history.

Number Generator

Minimum

Maximum

How Many

Allow duplicatesSort results

Dice Roller

Number of Dice

Sides

Coin Flipper

Number of Coins

About Random Number Generator

Free random number generator that creates one or multiple random numbers within any range you specify. Control whether duplicates are allowed, sort the results, and view statistics (sum, average, min, max). Includes a dice roller supporting d4, d6, d8, d10, d12, d20, and d100 with any number of dice, plus a coin flipper for heads/tails. All randomness is generated client-side using your browser's Math.random() - nothing is sent to any server. Perfect for games, raffles, decision-making, statistical sampling, lottery picks, and classroom activities.

Frequently Asked Questions

How random are the numbers?

The tool uses JavaScript's Math.random() function, which generates pseudorandom numbers. These are sufficiently random for games, raffles, decisions, and casual use. For cryptographic security (like generating encryption keys), a specialized cryptographic random generator should be used instead.

Can I generate numbers without duplicates?

Yes. Uncheck the 'Allow duplicates' option and the generator will ensure every number in the result is unique. This is perfect for lottery picks, raffle drawings, and random sampling where you need distinct values. Note: the count cannot exceed the range size when duplicates are disabled.

What dice types are available?

The dice roller supports all standard tabletop RPG dice: d4 (4-sided), d6 (standard die), d8, d10, d12, d20 (the classic D&D die), and d100 (percentile). You can roll up to 20 dice at once and see individual results plus the total.

Is this truly random?

The tool uses pseudorandom number generation (PRNG), which is mathematically deterministic but practically indistinguishable from true randomness for everyday use. For most purposes - games, decisions, education, fun - it is effectively random. True random number generation requires hardware-based entropy sources.

Is this random number generator free?

Yes, completely free with no signup. Generate random numbers, roll dice, and flip coins as many times as you want. All randomness is generated locally in your browser - no data is sent to any server.

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About Random Number Generator

Frequently Asked Questions

How random are the numbers?

Can I generate numbers without duplicates?

What dice types are available?

Is this truly random?

Is this random number generator free?

Yes, completely free with no signup. Generate random numbers, roll dice, and flip coins as many times as you want. All randomness is generated locally in your browser - no data is sent to any server.

Number Generator

Dice Roller

Coin Flipper

About Random Number Generator

Frequently Asked Questions

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Number Generator

Dice Roller

Coin Flipper

About Random Number Generator

Frequently Asked Questions

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Leave the numbers to random. Don't leave your customers to it.