Switching text between cases — uppercase, lowercase, title case, or sentence case — comes up constantly when formatting headlines, cleaning up pasted data, or fixing text typed with an accidentally-on caps lock key. This tool converts instantly, entirely in your browser.
The four case styles
| Style | Example | Common use |
|---|---|---|
| UPPERCASE | HELLO WORLD | Headlines, emphasis, acronyms |
| lowercase | hello world | Usernames, tags, code identifiers |
| Title Case | Hello World | Headlines, book and article titles |
| Sentence case | Hello world | Standard prose, first letter capitalized |
A note on Title Case rules
This tool capitalizes the first letter of every word for Title Case, which is a simple and common approach. Formal style guides (like AP or Chicago) have more nuanced rules — typically keeping short words like "a," "the," "and," and "of" lowercase unless they start the title — so for publication-level precision, a manual review against your specific style guide is still worthwhile.
Common uses
- Cleaning up pasted data: fixing inconsistent capitalization when combining data from different sources.
- Headlines and titles: quickly formatting a heading in title case.
- Fixing accidental caps lock text: converting text TYPED LIKE THIS back to normal sentence case.
All conversion happens locally in your browser; your text is never sent to a server.
Frequently asked questions
What is title case?
Title case capitalizes the first letter of each word, commonly used for headlines and titles. This tool capitalizes every word; formal style guides may keep short words like “the” or “of” lowercase.
Does this tool store my text?
No. All case conversion happens locally in your browser using JavaScript; nothing is sent to or stored by CalcAsk's servers.
What's the difference between sentence case and title case?
Sentence case capitalizes only the first letter of the whole text (like a normal sentence), while title case capitalizes the first letter of every word.