What is the Random 4 Digit Code Generator?
Create four-character numeric codes while keeping leading zeros intact. With both options enabled, the pool contains every value from 0000 to 9999. Turning off leading zeros limits it to 1000 to 9999.
How to use the Random 4 Digit Code Generator
Set the two checkboxes, enter a whole-number quantity from 1 to 20, and press Generate Code. Press Copy to copy the batch with one code per line. When pasting into a spreadsheet, use text-format cells to preserve leading zeros.
Features
- Exactly four digits per code
- Optional leading zeros
- Optional repeated digits within a code
- Unique codes within each batch
- Uniform selection using browser Web Crypto
Use Cases
Create game codes, classroom exercises, fictional lock combinations, or interface test data. A four-digit code has at most 10,000 possibilities and is too short for a strong password. The tool does not issue or validate verification codes for another service.
FAQ
With repeated digits disabled, there are 5,040 eligible codes when leading zero is allowed, or 4,536 when it is not.
