Case Converter
Convert text to UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case and more.
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How to use Case Converter
- 1Type or paste your text into the box.
- 2Choose your options and press “Convert”.
- 3Copy the result or download it as a file.
About this tool
Retyping text to fix its capitalisation is a waste of a few minutes several times a week. This converter handles eleven styles, and a few of them are worth knowing about. Title Case capitalises each significant word while leaving small words such as and, of and the in lowercase, which is the convention for English headlines. Sentence case capitalises only the first letter of each sentence, which is the quickest way to rescue text typed with caps lock on. The programming styles matter if you write code or prepare data: camelCase and PascalCase for identifiers, snake_case and CONSTANT_CASE for database columns and configuration keys, and kebab-case for URLs and CSS classes. Conversion is applied as you type with the result ready to copy, and nothing is transmitted anywhere, which makes it safe for confidential drafts and internal data.
Frequently asked questions
How is Title Case different from capitalising every word?
Title Case leaves short connecting words such as and, of, in and the in lowercase, following the usual English headline convention.
Can it fix text typed in all caps?
Yes. Sentence case restores normal capitalisation, leaving the first letter of each sentence capital.
Is my text sent anywhere?
No. Conversion happens in your browser as you type, and nothing is uploaded.
Is Case Converter free?
Yes. There's no sign-up, no watermark and no usage limit.
Is my data stored?
No. Everything is calculated in your browser and nothing is sent to a server.
Does it work on mobile and offline?
Yes. It works in any modern browser on phones, tablets and computers, and keeps working offline once the page has loaded.