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Générateur de nombres aléatoires

Generate truly random numbers within any range. Useful for games, draws, passwords, and more.

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What is a Random Number Generator?

A random number generator (RNG) produces numbers within a specified range that are statistically unpredictable — meaning there is no discernible pattern that could allow someone to predict the next number. True randomness is surprisingly difficult to achieve computationally; most software RNGs are "pseudorandom" (deterministic algorithms that simulate randomness), while hardware RNGs use physical phenomena like thermal noise or radioactive decay for genuine randomness.

Random number generators are used in an enormous range of applications: lottery and raffle draws, board game dice rolls, classroom random student selection, statistical sampling and simulations, cryptographic key generation, video game level generation, A/B testing sample selection, and scientific research. Our tool generates numbers using JavaScript's built-in Math.random() function, suitable for games, draws, and sampling use cases where cryptographic security is not required.

How to Use the Random Number Generator

  1. Réglez le Minimum et Maximum values of your desired range.
  2. Enter Combien numbers to generate (up to 1,000).
  3. Choisir Allow Duplicates (Yes) or generate a set of unique numbers (No).
  4. Cliquez Générer — results appear with statistics (min, max, sum, average). Click Copie to copy all numbers.

Why Use Our Random Number Generator?

  • 100% Gratuit — Generate unlimited random numbers.
  • Aucune inscription — Utilisation instantanée sans compte.
  • Basé sur un navigateur — Client-side generation; no server calls.
  • Unique Number Mode — Guarantee no duplicates in your generated set — perfect for lottery draws.
  • Statistics — Automatically shows count, min, max, average, and sum of generated numbers.

Foire aux questions

This tool uses JavaScript's Math.random() which is a pseudorandom number generator (PRNG). It produces numbers that appear random and pass basic statistical tests, but are generated by a deterministic algorithm seeded by the system time. For most use cases (games, draws, sampling) this is indistinguishable from true randomness and perfectly adequate.

Yes, for informal draws. Set the range to match your ticket numbers (e.g. 1–100), enable "No duplicates", and generate the required number of winners. Each number has an equal probability of being selected. For legally binding lotteries or large-scale competitions, use certified RNG services with audit trails for regulatory compliance.

This tool generates integers (whole numbers). If you need random decimals, you can use JavaScript's Math.random() directly in your browser console: Math.random() gives a decimal between 0 and 1. To get a decimal in a range, use: Math.random() * (max - min) + min.

You can generate up to 1,000 numbers at once. When "No duplicates" is selected, the count cannot exceed the size of the range (e.g. for range 1–10, you can generate at most 10 unique numbers). For most practical applications — classroom draws, team selections, sample sizes — 1,000 is more than sufficient.

Faits en bref

  • ✓ 100% gratuit, pas de frais cachés
  • ✓ Aucun compte ou connexion requis
  • ✓ Fonctionne dans n'importe quel navigateur
  • ✓ Vos données ne quittent jamais votre appareil
  • ✓ Unique number mode for fair lottery draws

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