[Chapter 21] Reference: String.toLowerCase()
Author: David Flanagan
Date: Fri Aug 29 11:20:11 1997

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| Chapter 21 JavaScript Reference |

# String.toLowerCase() Method

## Name

String.toLowerCase() Method---convert a string to lowercase

## Availability

Navigator 2.0, Internet Explorer 3.0

## Synopsis

    string.toLowerCase()

### Arguments

None.

### Returns

A copy of `string`, with all uppercase letters converted to lowercase.

## See Also

"String", "String.toUpperCase()"

String.sup() |  | String.toUpperCase()