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Case Converter

Convert text to uppercase, lowercase, title case, or sentence case in your browser.

✓ Browser-local processing

Result

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How to use Case Converter

Change capitalization while keeping your text’s punctuation and line breaks. Choose a mode for headings, labels, or a quick cleanup of all-caps text.

Title case capitalizes each word; it does not apply an editorial style guide or preserve acronyms.
Sentence case is a heuristic: it capitalizes the beginning and letters after . ! or ? followed by whitespace. Proper nouns and abbreviations need review.
Unicode default casing is used; language-specific casing such as Turkish may require manual adjustment.

Will it preserve names and acronyms?

Uppercase and lowercase convert every cased letter. Title and sentence modes first lowercase the text, so review proper names and acronyms afterward.

Does it remove formatting or punctuation?

It changes letter case only. Spaces, punctuation, and line breaks remain in place.

Clean extra whitespace, normalize Unicode accents, or remove non-printing control characters locally.

Count words, visible characters, sentences, and lines locally, with Unicode-aware word boundaries.

Replace literal text once or everywhere, with case-sensitive matching and no regular-expression execution.

Spell English letters with NATO code words, or decode code-word sequences into uppercase text.

Encode English letters and digits as Morse code, or decode dots and hyphens with explicit word separators.

Reverse visible characters, word order, or line order while keeping emoji and combining accents intact.