Case Converter
Change text to UPPER, lower, Title, Sentence, camelCase and more.
What is a case converter?
A case converter changes the capitalization of text without retyping it. If you accidentally typed a paragraph with Caps Lock on, received a list of names in all capitals, or need a headline in proper title case, paste the text above and pick the style you want. The result appears instantly and can be copied with one click.
Available text cases
- UPPERCASE: every letter becomes a capital. Good for short labels and emphasis.
- lowercase: every letter becomes small. Useful for cleaning email addresses and tags.
- Title Case: the first letter of each important word is capitalized, while short words such as “and”, “of” and “the” stay lowercase unless they start the title.
- Sentence case: only the first letter of each sentence is capitalized, the way normal writing looks.
- Capitalize Each Word: every word starts with a capital letter.
- aLtErNaTiNg and InVeRsE case for fun social posts.
- camelCase, PascalCase, snake_case, kebab-case and CONSTANT_CASE for programmers naming variables, files and CSS classes.
How to change text case
- Paste or type your text into the input box.
- Click the button for the case you need.
- Review the converted text in the result box.
- Press Copy to place it on your clipboard, then paste it wherever you need it.
Why use title case and sentence case correctly?
Consistent capitalization makes headlines, menus and documents look professional. Many publications use title case for headlines, while modern websites and apps often prefer sentence case because it is easier to read. Choosing one style and applying it everywhere improves the look of your website and can make search results more clickable.
Case conversion for developers
Programming languages have naming conventions. JavaScript variables usually use camelCase, classes use PascalCase, Python and databases favour snake_case, URLs and CSS classes use kebab-case, and constants use CONSTANT_CASE. The converter splits your words on spaces, punctuation and existing capitals, so “User Profile ID” becomes userProfileId or user_profile_id in one step.
Frequently asked questions
What is the difference between title case and capitalize each word?
Title case keeps small words such as "a", "an", "the", "and", "of" and "in" lowercase unless they are the first or last word. Capitalize Each Word makes every single word start with a capital letter.
Will the converter change numbers or symbols?
No. Numbers, punctuation and emoji are left exactly as they are. Only letters change, except in programmer cases where spaces and punctuation become separators.
Can I convert a large document?
Yes. The conversion runs in your browser and handles long documents of many thousands of words in a fraction of a second.