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Tool to add / pad leading zeros to a numbers and format it with a given length without changing its value 0000123 or 123.

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Tag(s) : Data Processing

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## Pad Leading Zeros to the Left

 Output A table [original number, 0-padded number] Only numbers with leading zeros

## Answers to Questions (FAQ)

### What are leading zeros? (Definition)

Leading zeros are zeros that appear at the beginning of a number, before any non-zero digit, they are not significant.

### How to pad zeros to the left?

To add leading zeros à des nombres, enter the numbers in the textarea and either the quantity of 0s to add or the desired length of digits for the number and dCode will calculate the required number of zeros. This operation is sometimes called zfill.

Example: 123 formatted for a length of 8 gives 00000123

Example: 123 formatted with 5 initial zeros also gives 00000123

### How to remove zeros to the left?

To deformat a number and remove zeroes at the start, enter the numbers the field and all leading zeros will be removed.

Example: 000123 will be converted to 123

Example: 0.123 stays unchanged as 0.123

To convert 00000123 to 000123 then, first remove the 0s and then pad left 3 zeros.

### When are leading zeros used?

Leading zeros are often used to ensure that a number has a certain number of digits and to maintain consistent formatting.

## Source code

dCode retains ownership of the "Leading Zeros" source code. Except explicit open source licence (indicated Creative Commons / free), the "Leading Zeros" algorithm, the applet or snippet (converter, solver, encryption / decryption, encoding / decoding, ciphering / deciphering, breaker, translator), or the "Leading Zeros" functions (calculate, convert, solve, decrypt / encrypt, decipher / cipher, decode / encode, translate) written in any informatic language (Python, Java, PHP, C#, Javascript, Matlab, etc.) and all data download, script, or API access for "Leading Zeros" are not public, same for offline use on PC, mobile, tablet, iPhone or Android app!
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Leading Zeros on dCode.fr [online website], retrieved on 2024-09-14, https://www.dcode.fr/leading-zeros

## Need Help ?

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## Questions / Comments

Feedback and suggestions are welcome so that dCode offers the best 'Leading Zeros' tool for free! Thank you!