Random Password Generator
Create unique and strong passwords instantly to protect your accounts and data.
Random Number Generator
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FAQ
When would you need random numbers?
Random numbers are commonly used in lottery events, game design, statistical simulations, password generation, or random test data. They help reduce bias, making results fairer and closer to real-world randomness.
Why use a random number generator?
Manually created "random numbers" are often not truly random, and generating large amounts manually is impractical. Using an online random number generator allows you to quickly produce irregular numbers, either reproducible or non-reproducible, ensuring truly fair results.
Can random numbers be generated without repetition?
Yes. This tool supports the “allow repetition / no repetition” option. In no-repetition mode, each number appears only once, making it ideal for lotteries or sorting purposes.
What is the difference between decimal mode and integer mode?
Integer mode generates whole numbers (e.g., 1, 5, 10), while decimal mode allows setting precision (e.g., 1.25, 3.1415), making it useful for applications that require more precise random values, such as simulations or scientific experiments. This tool supports up to 12 decimal places.
Can I download or share the generated numbers?
Yes. You can choose different output formats (e.g., newline, comma, tab, JSON), making it easy to import into Excel, CSV, or any data analysis tool.)
Does this tool save my data?
No. All data is processed locally in your browser, and nothing is uploaded or stored on any server, ensuring complete privacy.
Why can’t the “no repetition” feature be used in decimal mode?
Because the combinations of decimal numbers are virtually infinite, ensuring “no repetition” in decimal mode would drastically reduce performance or even prevent generation. To keep the tool stable, decimal mode only supports “allow repetition.” If you need non-repeating results, it’s recommended to use integer mode.