In short: A case converter changes the capitalization of text — UPPERCASE, lowercase, Title Case, Sentence case — or programming styles such as camelCase, snake_case and kebab-case.
About Case Converter
Retyping text just to fix its capitalization is a waste of time — especially when someone sent a heading in ALL CAPS or you need to turn a phrase into a variable name. This converter handles both writing styles and programming identifiers.
Title Case follows common English style rules: short articles, conjunctions and prepositions (a, an, the, and, of, in, to…) stay lowercase unless they start or end the title. Programming cases split on spaces, punctuation and existing camel humps, so userIDValue correctly becomes user_id_value.
How to use Case Converter
- Paste your text into the top box.
- Click the case you want.
- Copy the result from the lower box.
- Click a different case at any time — the original text is kept.
Examples
ANNUAL REPORT OF THE BOARD → Title Case → Annual Report of the Board.
total order amount → camelCase totalOrderAmount, snake_case total_order_amount, kebab-case total-order-amount.
Frequently asked questions
Which title case style is used?
A general style close to AP and Chicago: major words capitalized, minor words of three letters or fewer lowercase unless first or last.
Does it work with accented letters?
Yes. Conversion uses Unicode-aware case mapping, so élan becomes Élan.
What is the difference between camelCase and PascalCase?
camelCase starts with a lowercase letter (myValue); PascalCase capitalizes every word including the first (MyValue).
Will Sentence case keep proper nouns capitalized?
No tool can recognize every proper noun. Sentence case lowercases everything except the first letter of each sentence, so re-capitalize names afterwards.
Updated November 2026 · Free, no signup · How we build and test tools