UPPERCASE
Convert all letters to uppercase
HELLO WORLD
lowercase
Convert all letters to lowercase
hello world
Title Case
Capitalize first letter of each word
Hello World
Sentence case
Capitalize first letter of each sentence
Hello world. How are you?
camelCase
First word lowercase, others capitalized
helloWorld
PascalCase
All words capitalized, no spaces
HelloWorld
snake_case
Lowercase with underscores
hello_world
aLtErNaTiNg
Alternate uppercase and lowercase
HeLlO wOrLd