Switch text between uppercase, lowercase, title case and sentence case. Preview the result alongside your original, then copy or download it privately.
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Type or paste text to begin.
Title and sentence case lowercase the other letters, including acronyms and names. Review your result before using it.
Case conversion happens entirely on your device, without uploads, an account or browser storage. You can compare the original with the converted text before copying it. Spaces, punctuation and line breaks remain in place.
Every word is lowercased, then its first letter is capitalized. Apostrophes within a word stay within that word, while hyphens separate words. This is simple capitalization, not an editorial style such as AP or Chicago; small words such as and and the are capitalized too.
The text is lowercased, then the first letter at the beginning and after a period, question mark, exclamation mark or line break is capitalized. A period between digits is treated as a decimal separator. This is a simple rule, not grammar analysis, so abbreviations, names and acronyms need review.
No. Lowercase, title case and sentence case can change names, acronyms, URLs and code. Your original remains available in the input. Review the converted result before copying it.
It uses JavaScript Unicode case mappings and recognizes Unicode letters for capitalization. Emoji and scripts without uppercase/lowercase forms remain unchanged. Language-specific rules, such as Turkish dotted and dotless I, are not selected by locale. Some mappings expand a character into multiple letters.
Yes. The converter does not trim, collapse or reformat whitespace. Browser textareas represent line breaks as LF, and downloaded text uses that representation. Punctuation stays in place.
The input limit is 200,000 UTF-16 text units; some emoji use more than one unit. Oversized input is preserved, but conversion and exports stay unavailable until you shorten it. Your text is not saved when you leave or reload the page.
