Random Number Generator

Generate one or many random numbers within a range you set, optionally forcing them to be unique — great for draws, sampling and testing. Uses your browser's secure random source. Nothing is stored.

100% free
Private & safe
Runs in your browser

This tool runs entirely in your browser and needs JavaScript enabled to work. The full guide, examples and FAQ below are available without it.

Min

Max

How many

Unique values only

Uses your browser's cryptographically secure random source.

Why use Random Number Generator?

Random Number Generator is a quick, fair and genuinely fun tool that works instantly in your browser using a secure random source.

Runs instantly in your browser — nothing to install, nothing uploaded.
Completely free, with no account, no watermarks and no usage limits.
Range and count configurable; optional uniqueness
Set min, max and how many.
Works on any device — desktop, tablet and phone — and is fully keyboard accessible.

How to use Random Number Generator

Set min, max and how many.
Optionally require unique values.
Click Generate.
Copy the numbers.

Examples

Picking a raffle number 1–100.
Sampling 10 unique IDs.

Supported formats & limits

Range and count configurable; optional uniqueness

Limitations

Unique mode needs a range at least as large as the count.

Frequently asked questions

Is it secure?

Yes — it uses crypto.getRandomValues.

Unique values?

Enable the option; the range must be big enough.

Uploaded?

No — local only.

Was this tool helpful?

Dice RollerRoll any number of dice with any number of sides.Coin FlipperFlip a virtual coin, once or many times.Random Name PickerPick random winners from a list of names.Password GeneratorGenerate strong random passwords with a secure source.