Text case converter

Paste your text into the box above and click Title Case. Each word-shaped run gets an initial capital letter. The conversion runs in your browser with no signup. Skim the result against APA or Chicago rules if your publisher requires style-guide title case.

Paste your text into the box above and click UPPER CASE. Every letter becomes a capital; numbers, spaces, and punctuation stay the same. Use Copy to move the result back to your document.

Paste the text and click lower case to convert everything to lowercase instantly. If you need sentence-like capitalization after that, click Sentence case next and review proper nouns manually.

Paste the paragraph here and click tOGGLE (toggle case). Each letter flips case, so accidental ALL CAPS often becomes normal mixed or lowercase text in one step. For entire strings that should be all lower or all upper, use lower case or UPPER CASE instead.

Title case capitalizes the first letter of each word (letter run), which suits headlines, book titles, and UI labels. Sentence case capitalizes the start of the text and the first letter after ., !, or ?, and lowercases most other letters, which suits body copy and product descriptions.

Not fully. This tool uses mechanical title case: the first letter of every word-shaped token is capitalized. APA, Chicago, and MLA often keep short prepositions and articles (of, and, the) lowercase in the middle of a title. Proofread headlines against your required guide before you submit.

No. This tool covers prose and label casing: UPPER CASE, lower case, Title Case, Sentence case, First Letter, aLtErNaTe, and tOGGLE. For snake_case or camelCase, use a dedicated programming case converter or rename variables in your editor.

Yes. Conversion runs entirely in your browser. Your text is not uploaded, logged, or stored on a server. You can paste corporate, legal, or private copy without sending it to us.

No. Case changes only affect letter capitalization, not spaces, punctuation, or line breaks. Word, character, line, and sentence counts stay the same unless you edit the text yourself.

Yes. It works on paragraphs, lists, and multi-line text directly in the editor. There is no enforced character limit in this tool, but extremely large pastes can slow down depending on your browser and device.

UPPER CASE, lower case, and tOGGLE rely on standard browser casing and generally work across many scripts. Title Case, Sentence case, First Letter, and aLtErNaTe use A-Z letter matching, so non-English or accented text may need a manual review.

First Letter uppercases only the first alphabetic character in the whole string and lowercases the rest, useful for a single-line label. aLtErNaTe walks character by character, alternating lower and upper on letters only. Neither mode is the same as title case or programming case styles.