> ## Documentation Index
> Fetch the complete documentation index at: https://www.integrate.io/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# ETL: ByteArrayToString

> Convert a byte array with a specified character encoding into a readable string. Use for binary-to-text conversions in ETL data pipelines.

## Description

Converts a byte array in a given encoding to string.

## Syntax

`ByteArrayToString(byte_array[, charset_expression])`

## Arguments

*byte\_array* - a byte array.

*charset\_expression* - string\_expression indicating the input encoding. The default is UTF-8. See the list of available character sets in  [https://docs.oracle.com/javase/7/docs/technotes/guides/intl/encoding.doc.html](https://docs.oracle.com/javase/7/docs/technotes/guides/intl/encoding.doc.html "Link: https://docs.oracle.com/javase/7/docs/technotes/guides/intl/encoding.doc.html").

## Examples

`ByteArrayToString(GetBytes('Hello World','UTF-8'),'UTF-8')` returns 'Hello World'

## Return value datatype

string

## Impact of null value

If either parameter is null or not provided, returns null.