← CatalogCase Converter

Case Converter

Type once, get every case at the same time — text cases for writing, code cases for identifiers, and URL slugs. Multi-line input converts line by line for the code cases.

Input
UPPERCASE
HELLO WORLD! THIS IS THE MILLION FORGE CASE CONVERTER. CRÈME BRÛLÉE AND THE ART OF NAMING THINGS
lowercase
hello world! this is the million forge case converter. crème brûlée and the art of naming things
Title Case
Hello World! This Is the Million Forge Case Converter. Crème Brûlée and the Art of Naming Things
Sentence case
Hello world! This is the million forge case converter. Crème brûlée and the art of naming things
camelCase
helloWorldThisIsTheMillionForgeCaseConverter cremeBruleeAndTheArtOfNamingThings
PascalCase
HelloWorldThisIsTheMillionForgeCaseConverter CremeBruleeAndTheArtOfNamingThings
snake_case
hello_world_this_is_the_million_forge_case_converter creme_brulee_and_the_art_of_naming_things
kebab-case
hello-world-this-is-the-million-forge-case-converter creme-brulee-and-the-art-of-naming-things
CONSTANT_CASE
HELLO_WORLD_THIS_IS_THE_MILLION_FORGE_CASE_CONVERTER CREME_BRULEE_AND_THE_ART_OF_NAMING_THINGS
URL slug
hello-world-this-is-the-million-forge-case-converter creme-brulee-and-the-art-of-naming-things

Title Case keeps minor words (a, an, the, and, of, in, ...) lowercase unless they start or end a line. Slugs fold accents to plain ASCII (Crème → creme). Everything runs locally in your browser.