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Case Converter: UPPERCASE, lowercase, Title Case, Sentence case & more

Change text to uppercase, lowercase, sentence case or proper Title Case, or to camelCase, snake_case and kebab-case for code. One click to copy.

Title Case follows English headline rules (short words like “and”, “of” and “the” stay lowercase). French, Spanish and German titles normally capitalise only the first word and names: use Sentence case for them.

Result

How to use the case converter

  1. Paste your text.
  2. Click a style: the result appears instantly.
  3. Copy it, download it, or use it as the new input to combine styles.

The styles explained

StyleExampleUsed for
Sentence caseThe quick guide to headlinesMost writing, French/Spanish/German titles
Title CaseThe Quick Guide to HeadlinesEnglish headlines, book titles
UPPERCASETHE QUICK GUIDEShort labels, acronyms
camelCasequickGuideHeadlinesJavaScript variables
snake_casequick_guide_headlinesPython, databases
kebab-casequick-guide-headlinesURLs, CSS classes

How Title Case works here

English headline style capitalises the important words and keeps short articles, conjunctions and prepositions lowercase (“a”, “and”, “of”, “the”, “to”…), unless they are the first or last word or follow a colon. Hyphenated words get a capital after the hyphen (“Step-by-Step”).

Example

“the quick guide to writing better headlines for your blog” becomes “The Quick Guide to Writing Better Headlines for Your Blog”.

Why not just type in capitals?

Text written in ALL CAPS is harder to read, feels like shouting online, and lowers click rates in search results. Fixing it by hand is slow and error-prone; this tool does it in one click and handles accented letters correctly. Read more in our guide to title case rules.

Frequently asked questions

Does it work with accented letters?

Yes: é → É, ß → SS, ç → Ç and so on, using your browser's language rules.

What happens to Arabic text?

Arabic has no upper and lower case, so it stays the same; Latin words inside it are converted.

Will it keep my line breaks?

Yes. Every line is converted separately, including code styles like snake_case.

Is my text uploaded?

No, the conversion runs in your browser.

Sources: The Chicago Manual of Style, 18th ed., §8.160 (headline style); AP Stylebook, “composition titles”.

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Last reviewed: 2026-11-02. Results are calculated in your browser and may differ slightly from other apps. See our disclaimer.