Gerador de Números Aleatórios — Calculadora Online Grátis
Integer or decimal random numbers — up to 50 at once
The Random Number Generator produces cryptographically secure random integers or decimals within any range you specify — up to 50 numbers at a time. It's used for lottery picks, raffle draws, classroom activities, statistical sampling, and anywhere you need unbiased, unpredictable numbers without a dice or spreadsheet.
Frequently Asked Questions
Sobre Esta Calculadora
True randomness is harder to achieve than it sounds. This generator uses the browser's built-in cryptographic random number API (crypto.getRandomValues) rather than simple pseudo-random algorithms, making results unpredictable and unbiased — suitable for security-sensitive applications like key generation and not just games.
You can generate integers or decimals, set any min/max range, choose how many numbers you want (up to 50), and toggle whether duplicates are allowed. Results appear instantly and can be copied with one click.
Common uses include raffle draws, random sampling for research, randomising a class list for presentations, picking teams, and generating test data for software development.
O Gerador de Números Aleatórios produz números inteiros ou decimais aleatórios seguros.
Exemplo Resolvido
Picking 6 unique lottery numbers between 1 and 49
Entradas:
- Minimum: 1
- Maximum: 49
- Count: 6
- Allow duplicates: No
- Type: Integer
Passo a Passo:
- Generator requests 6 unique values from the crypto-random pool
- Each number is drawn from the range [1, 49] with equal probability
- Duplicates are rejected and redrawn until 6 unique values are collected
- Numbers are sorted ascending for easy reading