Truly random, not pseudo-random
This generator uses your browser’s cryptographically secure random number source rather than a simple pseudo-random algorithm, making it suitable for giveaways, raffles, and sampling.
Random Number Generator
Set a min, max, and count to generate cryptographically random numbers instantly.
How it works
- 1
Set the options (length, mode, character types, etc.).
- 2
Click the generate / create button.
- 3
Copy the result. Generate again for a new value.
Why use this tool
- Runs entirely in your browser — nothing is uploaded to a server.
- 100% free, no sign-up, no limits.
- Works in any modern browser — no app install, no extension, no account.
How to use Random Number Generator
Configure the options in Random Number Generator, then click generate. Each click produces a new value in your browser — copy what you need.
Tips for better results
Review options before generating. Click again if you need another candidate. Prefer copying instead of screenshotting secrets.
Privacy and offline-friendly processing
Whenever possible, Random Number Generator processes your data locally with JavaScript in this page. That means drafts, secrets, and unfinished work stay on your device by default. Prefer this workflow when you do not want to upload sensitive text, tokens, passwords, or files to a third-party service.
Frequently asked questions
Can I generate numbers without repeats?
Yes, enable the unique values option to avoid duplicates within a single batch.
What is the maximum count I can generate at once?
Up to 100 numbers per click, which covers the vast majority of use cases.
Is my data uploaded when I use this tool?
For most FlyUtils tools, no. Processing happens in your browser with JavaScript. If a tool ever needs a server, that will be stated clearly on the page.
Is Random Number Generator free to use?
Yes. Random Number Generator is free, with no sign-up and no artificial usage caps for normal personal and work use.
Does Random Number Generator work on mobile?
Yes. The page is mobile-first, so you can paste input, tweak options, and copy results from a phone or tablet.