How to use the case converter
- Type or paste your text into the box.
- Click the case you want. The text changes instantly.
- Click Copy text or Download .txt. Changed your mind? Click Undo.
The case styles explained
| Style | Example | Good for |
|---|---|---|
| Sentence case | The quick brown fox. It jumps. | Normal writing, fixing Caps Lock text |
| lowercase | the quick brown fox | Tags, emails, URLs |
| UPPERCASE | THE QUICK BROWN FOX | Headings, labels, emphasis |
| Title Case | The Quick Brown Fox of the Woods | Titles, headlines, book and song names |
| Capitalize Each Word | The Quick Brown Fox Of The Woods | Names, product listings |
| aLtErNaTiNg | tHe qUiCk bRoWn fOx | Memes and jokes |
| iNVERSE cASE | tHE qUICK bROWN fOX | Undoing accidental Caps Lock |
Title case rules used
This converter capitalizes the first and last words and all "major" words (nouns, verbs, adjectives, adverbs and pronouns). It keeps these short words lowercase in the middle of a title: a, an, the, and, but, or, nor, for, so, yet, as, at, by, in, of, off, on, per, to, up, via. Words that are already fully uppercase, like acronyms (NASA, USA), are kept as they are.
Different style guides (AP, Chicago, APA) differ slightly, for example on whether to capitalize prepositions longer than four letters. Check your guide for formal publishing.
Frequently asked questions
What is title case?
Title case capitalizes the main words in a title or heading, while short words like "a", "an", "the", "and", "of" and "in" stay lowercase unless they're the first or last word. For example: "The Lord of the Rings". This tool follows common English style rules.
What is sentence case?
Sentence case capitalizes only the first letter of each sentence, like normal writing. It's useful for fixing text typed with Caps Lock on, and many style guides now prefer it for headings.
What's the difference between Title Case and Capitalize Each Word?
Capitalize Each Word makes the first letter of every word uppercase, including small words ("The Lord Of The Rings"). Title Case keeps small words lowercase, which is the standard for headlines and book titles.
Will it change names and acronyms?
Sentence case and lowercase will lowercase everything except the first letter of each sentence, so names and acronyms like NASA may need to be fixed by hand afterwards. Title Case and Capitalize Each Word keep words that are already fully uppercase, such as acronyms.