Free case converter: change text to UPPERCASE, lowercase, Title Case (AP/APA/Chicago), sentence case, camelCase, snake_case, kebab-case and more.
Conversions update as you type. Nothing is uploaded — everything runs in your browser.
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Paste any text and instantly see it in every case at once — UPPERCASE, lowercase, Title Case, Sentence case, and developer formats like camelCase, snake_case, and kebab-case. Copy the one you need with a single click. Everything runs in your browser.
A case converter changes the capitalization of your text without you retyping it. It covers writing cases (UPPERCASE, lowercase, Title Case, Sentence case) and programming cases that turn a phrase into a single identifier (camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, dot.case, Train-Case). Title Case follows the style you pick — AP, APA, or Chicago — which decides whether short words like a, an, the, and, of, and to stay lowercase.
Example
Format blog posts, essays, and headings in correct title case.
Convert names between camelCase, snake_case, kebab-case, and CONSTANT_CASE.
Create clean kebab-case slugs from a page title.
Make snake_case keys or dot.case paths for files and settings.
Quickly fix text that was typed in the wrong case.
Rescue text stuck in ALL CAPS or all lowercase without retyping a word.
Capitalize headlines properly with AP, APA, or Chicago rules, so small words stay lowercase.
Switch a name between camelCase, snake_case, kebab-case, and CONSTANT_CASE in one click.
Turn a phrase into a URL slug (kebab-case) or a database key (snake_case) quickly.
All conversion happens in your browser — your text is never uploaded.
Paste your text and read the Title Case card, which shows the AP, APA, and Chicago variants side by side. Copy the one your style guide uses.
Sentence case capitalizes only the first letter of each sentence (and the word I), like normal prose. It is useful for body text and many UI style guides.
camelCase joins words with no spaces and capitalizes each word after the first (myVariableName). snake_case joins words in lowercase with underscores (my_variable_name). Both are common in code.
Yes. In AP, APA, and Chicago styles, short articles, conjunctions, and prepositions (a, an, the, and, of, to, …) are lowercased unless they are the first or last word. Use the Capitalize Each Word output to capitalize all of them.
Title and Sentence case lowercase the rest of each word, so acronyms may lose their capitals. Use UPPER CASE for fully capitalized text, or fix acronyms manually after converting.
Yes. All conversions run locally in your browser, so your text never leaves your device.