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Random 4 Digit Number Generator

Create fixed-width 4 digit numbers for sample PINs, short verification codes, demo IDs, and random classroom lists.

Last updated: May 31, 2026

Client-Side Processing
Input Data Stays on Device
Instant Local Execution

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What is Random 4 Digit Number Generator?

This tool generates random 4 digit values from 0000 to 9999 when leading zeros are enabled, or from 1000 to 9999 when they are disabled. It is useful when you need short numeric samples that preserve their width in spreadsheets, forms, or test fixtures.

How to Use Random 4 Digit Number Generator

1

Enter how many 4 digit numbers you want.

2

Choose whether values can start with zero.

3

Turn on unique values if repeats are not allowed.

4

Click Generate.

5

Copy the list for your test data or worksheet.

Common Use Cases

  • Testing 4 digit PIN input fields.
  • Creating sample verification codes for UI mockups.
  • Generating short numeric IDs for demos.
  • Building classroom random number exercises.

Example Input and Output

Generate a small set of unique 4 digit codes with leading zeros allowed.

Settings
Count: 5, Leading zeros: Yes, Unique: Yes
Generated values
0427
5819
9064
1138
7002

Data Privacy

All number generation happens locally in your browser.

Frequently Asked Questions

Can the generated numbers start with zero?
Yes. Keep "Allow leading zeros" enabled to generate values such as 0042. Turn it off to generate only 1000 through 9999.
Are the values unique?
Only when you enable unique mode. Otherwise, duplicates can appear just like repeated rolls in a random draw.
Is this suitable for real passwords or security codes?
No. This is for examples, test data, and non-security use. Do not use browser Math.random output as real authentication secrets.

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