Random Number Generator — Secure, Fast, Online

Random Number Generator

Q: What is a Random Number Generator?

It picks numbers unpredictably within a chosen range. Useful for giveaways, sampling, testing, or classroom activities.

Q: Is this Random Number Generator truly random?

Yes—it uses the browser’s Web Crypto API for secure randomness. Not certified for regulated gambling or lotteries.

Q: Can I use this Random Number Generator for professional or academic purposes?

Yes. It’s suitable for teaching, simulations, and QA testing. For audited randomness, use domain‑specific solutions.

Generate truly random numbers online within a range of your choice. Simple, fast, and secure.

Enter Range:

Quantity

No duplicates Sort ascending

Why use Random Number Generator?

A random number generator is a quick and reliable way to create unbiased results. Whether you’re running a giveaway, choosing a winner, or just testing something, randomness ensures fairness.

With our Random Number Generator, you don’t need to install any software. Everything runs directly in your browser, instantly and securely. It’s especially useful for teachers, developers, students, and anyone needing random results for experiments, math practice, or decision‑making.

How to use Random Number Generator

Step 1 — Enter the minimum and maximum values for the range you want.
Step 2 — Click Generate Number.
Step 3 — Instantly get a random number displayed on the screen.
Step 4 — Repeat as many times as you need with a single click. Use “No duplicates” or “Sort” as needed.

How it works (secure randomness)

We use the browser’s crypto.getRandomValues to draw uniformly distributed integers with rejection sampling (no modulo bias). While it’s cryptographically strong for general use, this tool isn’t certified for regulated gambling or lotteries.