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Dart - Convert All Characters of a String in Lowercase

Last Updated : 7 Apr, 2025

With the help of the toLowerCase() method in the string will convert all the characters in a string in lowercase.

Syntax:

String.toLowerCase()

Return: string

Image Representation:

Example 1:

Dart

// main function start
void main() { 
    // initialise a string
    String st = "GEEKSFORGEEKS"; 
    
    // print the string in lowercase
    print(st.toLowerCase()); 
}

Output:

geeksforgeeks

Example 2:

Dart

// main function start
void main() { 
    // initialise a string
    String st = "Computer Science"; 
    
    // print the string in lowercase
    print(st.toLowerCase()); 
}