Is the Case Converter free?
Yes. This tool is free to use with no sign-up, and it runs entirely in your browser.
Does it upload my text?
No. Text case conversion happens locally in your browser, so your content never leaves your device.
Does it support title case and sentence case?
Yes. Both title case and sentence case are included, alongside uppercase, lowercase, and swap case.
Is this meant for code identifiers?
No. It is focused on normal text content, so it does not produce camelCase, snake_case, or other programming identifier styles.
Does it work on mobile?
Yes. Because it runs in the browser, you can paste, convert, and copy text on a phone or tablet just as on desktop.
Why did Sentence case ruin my acronyms?
Because it lowercases everything first and then re-capitalizes only the letter that follows a sentence-ending punctuation mark. It has no way to know that NASA is an acronym and note is not, so both are lowercased. If your text is full of proper nouns, convert and then fix them, or use Title Case instead.
Does Title Case follow AP or Chicago style?
Neither. Every word gets its first letter capitalized, including articles, conjunctions and short prepositions, which both style guides would leave lowercase in the middle of a title. It is a mechanical transformation. Treat the output as a starting point for a headline, not as a finished one.
Can I get camelCase or snake_case?
Not on this page. The five modes are aimed at prose: content, support replies, headlines and documentation. For identifier casing, the slug generator will give you a kebab-case or snake_case string, which covers most of what people actually need.
What does Swap Case do?
It inverts the case of every character individually: lowercase becomes uppercase and uppercase becomes lowercase, character by character. It is the only mode that is reversible, since running it twice returns the original text exactly.
Does it handle non-English alphabets?
Yes. Casing is done with locale-aware methods, so Cyrillic, Greek and accented Latin are cased correctly, and Turkish dotted and dotless letters follow their own rules rather than being mangled into ASCII equivalents. Scripts without case, such as Chinese or Arabic, pass through unchanged.
Is my text uploaded?
No. The conversion happens in the page and nothing is sent to a server, so you can paste unpublished copy without thinking about it.