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Case Converter

Convert text between uppercase, lowercase, camelCase, snake_case, kebab-case and more, with full Unicode support

Characters 94Words 18Lines 5

Text cleanup

Every conversion runs locally in your browser: nothing is uploaded and no account is needed.

Results

UPPERCASE

Turns every letter uppercase while Chinese characters and symbols stay untouched.

HELLO_WORLD FOO-BAR HTTPRESPONSE GETXUSER_ID LA CLÉ DU PORTAIL ХОРОШО ДЕЛА 你好世界 HELLO世界

lowercase

Turns every letter lowercase and keeps the original spacing and symbols.

hello_world foo-bar httpresponse getxuser_id la clé du portail хорошо дела 你好世界 hello世界

Title Case

Capitalizes each word except the articles and prepositions in the exclusion list.

Hello World Foo Bar Http Response Get X User Id La Clé Du Portail Хорошо Дела 你好世界 Hello世界

Sentence case

Capitalizes only the start of each line and lowercases the rest.

Hello world foo bar Http response get x user id La clé du portail Хорошо дела 你好世界 hello世界

camelCase

First word lowercase, later words capitalized, no separators: used for variable names.

helloWorldFooBar httpResponseGetXUserId laCléDuPortail хорошоДела 你好世界Hello世界

PascalCase

Every word capitalized with no separators: used for class and component names.

HelloWorldFooBar HttpResponseGetXUserId LaCléDuPortail ХорошоДела 你好世界Hello世界

snake_case

All words lowercase joined with underscores: used for database fields.

hello_world_foo_bar http_response_get_x_user_id la_clé_du_portail хорошо_дела 你好世界_hello世界

CONSTANT_CASE

All words uppercase joined with underscores: used for constants and macros.

HELLO_WORLD_FOO_BAR HTTP_RESPONSE_GET_X_USER_ID LA_CLÉ_DU_PORTAIL ХОРОШО_ДЕЛА 你好世界_HELLO世界

kebab-case

All words lowercase joined with hyphens: used for CSS class names and URLs.

hello-world-foo-bar http-response-get-x-user-id la-clé-du-portail хорошо-дела 你好世界-hello世界

aLtErNaTiNg

Letters alternate between uppercase and lowercase for decorative text.

HeLlO_wOrLd FoO-bAr HtTpReSpOnSe GeTxUsEr_Id La ClÉ dU pOrTaIl ХоРоШо ДеЛа 你好世界 HeLlO世界

inverse

Swaps the case of every letter in the original text.

HELLO_WORLD FOO-BAR httprESPONSE GETxuSER_id LA CLÉ du PORTAIL хорошо ДЕЛА 你好世界 HELLO世界

These words stay lowercase in Title Case, except as the first or last word of a line. They do not affect the other styles.