Case Converter
Convert text to UPPER CASE, lower case, or Title Case.
Converted text will appear here.
What This Tool Does
Retyping a block of text just to change its capitalization wastes time you don't need to spend. Paste your text in, choose UPPER CASE, lower case, or Title Case, and this tool rewrites the whole thing in that style instantly, leaving the actual words untouched.
How to Use It
Paste or type your text into the box, choose a case from the Convert To dropdown, and click Convert Case. The converted text appears as the result — there's no in-place editing, so your original input stays in the box if you want to try a different case afterward.
The Formula
UPPER CASE and lower case use JavaScript's own built-in case conversion directly, no custom logic involved. Title Case is a little more deliberate: it first lowercases the entire string, then capitalizes the first letter of the string and every letter that immediately follows a space or a hyphen. Apostrophes are deliberately excluded from that boundary check, so contractions and possessives keep a single capital at the start of the word rather than picking up a second one after the apostrophe — "don't stop believin'" correctly becomes "Don't Stop Believin'," not "Don'T Stop Believin'."
A Worked Example
"the great gatsby" converts to "The Great Gatsby" in Title Case — a clean case with no apostrophes to complicate things, capitalizing exactly the three word-initial letters you'd expect. The same input converts to "THE GREAT GATSBY" in UPPER CASE, or stays as "the great gatsby" in lower case (useful for normalizing text that arrived in inconsistent capitalization, like SMART UTILITIES HUB becoming smart utilities hub).
FAQ
- How do I convert text to UPPER CASE?
- Paste your text and select 'UPPER CASE' from the dropdown, then click Convert Case. All letters will be capitalized.
- What is Title Case?
- Title Case capitalizes the first letter of every word. It's commonly used for headlines, titles, and proper names.