Free Random Number Generator
ワンクリックで任意の範囲の乱数を生成します。
Frequently Asked Questions
Is the 乱数ジェネレーター free to use?
Yes, the 乱数ジェネレーター on Allio Tools is completely free with no sign-up or registration required. It works directly in your browser.
How does the 乱数ジェネレーター work?
ワンクリックで任意の範囲の乱数を生成します。 No data is sent to a server — everything runs locally in your browser for maximum privacy and speed.
Do I need to install anything to use the 乱数ジェネレーター?
No installation needed. The 乱数ジェネレーター runs entirely in your web browser on any device — desktop, tablet, or mobile.
Is my data safe when using the 乱数ジェネレーター?
Completely safe. The 乱数ジェネレーター processes everything locally in your browser. No input data, results, or usage information is ever transmitted to or stored on any server.
Does the 乱数ジェネレーター work offline?
After the page loads for the first time, the 乱数ジェネレーター works without an internet connection for all client-side processing. Tools that fetch live external data (such as DNS or WHOIS lookups) require an active connection.
Are the results from the 乱数ジェネレーター truly random?
Yes. The 乱数ジェネレーター uses your browser's built-in cryptographically seeded random number generator, which provides high-quality unpredictable randomness suitable for games and fair decisions.