Random Number Generator - Range, Count, Unique, and Sort (Crypto-Strong)

Generate one or many random integers in any range - with unique and sort options

🔒 100% in-browser🆓 Free forever⚡ No sign-up
Uses crypto.getRandomValues for cryptographically strong randomness where available.
Estimates only. Results are generated by generalised formulas from the inputs you provide and are for informational purposes only. They are not financial, tax, legal, medical, or professional advice, and do not account for your individual circumstances, jurisdiction, taxes, fees, or health conditions. Verify important figures with a qualified professional. By using this tool you agree to our Terms & Disclaimer.

How it works

  1. 1
    Set the range

    Enter minimum and maximum (inclusive) integers.

  2. 2
    Set how many

    1 to 100,000 numbers. Turn on Unique for duplicate-free results.

  3. 3
    Generate and copy

    Click Generate to draw, then Copy to send the list to your clipboard.

About Random Number Generator - Range, Count, Unique, and Sort (Crypto-Strong)

Free random number generator. Pick a minimum, maximum, and how many numbers you want. Toggle unique (no duplicates) and sorted output. Uses the browser's cryptographically-strong Web Crypto API for randomness - suitable for raffles, lottery picks, sampling, testing, and games. Runs entirely in your browser. Random Number Generator - Range, Count, Unique, and Sort (Crypto-Strong) on 712 Tools runs entirely inside your browser using modern JavaScript APIs - no server ever sees your data. That means instant results, complete privacy, and no upload limits.

Whether you need to generate one or many random integers in any range - with unique and sort options for a debugging session, a quick sanity check, or a production incident, this tool is free to use as many times as you need. There are no watermarks, no sign-up, and no ads inside the tool itself.

Frequently asked questions

How random is it?

Uses <span class=&quot;font-mono&quot;>crypto.getRandomValues</span> where available - cryptographically strong. Falls back to Math.random only in older environments.

Can I get unique numbers?

Yes - toggle Unique. The tool then uses a Set to guarantee no duplicates. Requires that the range is at least as large as the count.

Is my data uploaded?

No. All generation runs entirely in your browser.

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