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Free tool

Case converter

“Case” means whether letters are capitals (upper case) or small letters (lower case). Paste your text into the case converter, choose a style, and copy the result. Everything happens in your browser.

THE QUICK BROWN FOX The Quick Brown Fox The quick brown fox the_quick_brown_fox
RESULT · Title Case
How to Write a Cover Letter That Gets Interviews. It Takes Four Paragraphs and About 300 Words.
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When to use each case

CaseLooks likeUsed for
UPPERCASEWARNING: WET FLOORShort labels, signs and acronyms. Avoid it for whole sentences in emails; it reads as shouting.
lowercaselanglibra.comWeb addresses, email addresses and some informal brand styles.
Sentence caseHow to write a cover letterNormal sentences, and headings in most modern websites, emails and UK publications.
Title CaseHow to Write a Cover LetterBook, film and article titles, and headings in many US publications and formal reports.
camelCasecoverLetterTitleNames of variables and functions in programming languages such as JavaScript.
snake_casecover_letter_titleFile names, database fields and Python code.
kebab-casecover-letter-titleWeb page addresses (URLs) and CSS class names.

The title case rule this tool follows

Capitalise the first and last word and every major word. Keep these small words in lower case unless they come first or last: articles (a, an, the), short conjunctions (and, but, or, nor, for, so, yet) and short prepositions (at, by, in, of, on, to, up, as, via). Style guides differ on details; the writing style guide compares them.

aantheandbutornorforsoyetatbyinofontoupasvia