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Pick a random number from 1 to 20

Tools
Password generator
Lotteries Multi-digit Multi-numbers Prize draw Array of numbers Natural numbers Numbers range Numbers from list
0-1 0-2 0-3 0-4 0-5 1-2 1-3 1-4 1-5 1-6 1-7 1-8 1-9 1-10 1-12 1-13 1-14 1-15 1-20 1-100 2-3 2-4 2-5 2-6 2-9 2-10 2-12 2-20 3-4 3-5 4-10 5-10 5-20 7-10 10-100 20-100 50-100

Random number generator creates sequences of digits in a specific range or from a list

Number range can be from minus to plus 999,999,999

Numbers can be separated by space, comma or new line

Numbers quantity

Options

Creates a downloadable image with the results

Number generator 1–20

The number generator 1–20 creates random integers in a given range. 20 possible values from 1 to 20. Convenient for medium ranges.

Each number from 1 to 20 has equal chances of being drawn. The cryptographically secure Crypto.getRandomValues() API ensures true randomness. Zero-knowledge architecture — numbers never leave your device.

Client-side generation. Adjust the count of numbers, exclude repeats, sort the result. The tool works offline after page load. Free, no registration.

Features

  • Numbers in range 1–20 only
  • Adjustable result count
  • No repeats
  • Zero-knowledge: data never leaves your device
  • Cryptographically secure API — true randomness
  • Instant result copying
How it works

Get a number from 1–20 in four steps

Intuitive interface lets you get results in seconds.

01

Range is preset

The range 1–20 is already set. The generator only creates numbers within these limits.

02

Set the count

Specify how many numbers to generate — from 1 to 100. The tool adapts to your choice.

03

Run generation

Click the button. The cryptographically secure algorithm creates random numbers in the 1–20 range.

04

Copy the result

Numbers appear instantly. Copy them one by one or all at once.

Applications

Where numbers 1–20 are needed

Random numbers in a given range — a versatile tool.

Giveaways

Fair winner selection from the 1–20 range. Each number has equal chances.

Games

Random numbers for games needing the 1–20 range. A replacement for dice and generators.

Education

Random number examples for math lessons in the 1–20 range.

Decision making

Random number from 1–20 for choosing an option, drawing lots, or determining order.

Advantages

Number generator 1–20

20 possible values — each with equal chances.

Guaranteed range

Each number strictly within 1–20. No outliers beyond bounds.

Zero-knowledge architecture

Client-side generation. Numbers are never sent to a server. Complete privacy.

Instant copying

Each number is a clickable chip. Copy individually or as a list.

No limits

Generate as many times as you like. Completely free, no registration.

Frequently asked questions

About numbers 1–20

Which numbers are in the range?

The range 1–20 includes all integers from 1 to 20 inclusive. 20 values total.

Are the numbers truly random?

Yes, Crypto.getRandomValues() is used — a cryptographically secure API that ensures true randomness.

Can numbers repeat?

By default, yes. To exclude repeats, enable the 'no repeats' option.

How many numbers can be generated?

From 1 to 100 numbers per generation. With the 'no repeats' option enabled — no more than the count of numbers in the range.

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