Case Converter
Type or paste text and see it in nine cases at once: UPPERCASE, lowercase, Title Case, Sentence case, camelCase, PascalCase, snake_case, kebab-case, and CONSTANT_CASE. Copy any result with one click. Everything runs in your browser.
About the Case Converter
The Case Converter changes the capitalization and word formatting of text. Type or paste your text once and see it in nine cases at the same time: UPPERCASE, lowercase, Title Case, Sentence case, camelCase, PascalCase, snake_case, kebab-case, and CONSTANT_CASE. It helps writers fix headings, and helps developers turn labels into variable names, slugs, and constants. Everything runs in your browser, so your text stays on your device and is never uploaded.
How it works
- Type or paste your text into the input area.
- Read the nine converted results below; each updates as you type.
- Click the Copy button next to any result to put that version on your clipboard.
- Click Clear to empty the input, or Load sample to try it with example text.
Features
- Nine cases at once: UPPERCASE, lowercase, Title Case, Sentence case, camelCase, PascalCase, snake_case, kebab-case, and CONSTANT_CASE.
- Live updates as you type, with no Convert button to press.
- A Copy button on every result so you can grab the exact version you need.
- Word splitting that reads existing camelCase, snake_case, and kebab-case input so you can convert between formats.
- Runs fully in the browser with no signup and no data sent to a server.
Frequently asked questions
Is my text sent anywhere?
No. All conversion happens in your browser as you type. Nothing is uploaded, stored, or logged.
What is the difference between Title Case and Sentence case?
Title Case capitalizes the first letter of every word, for example Making Web Beautiful. Sentence case capitalizes only the first letter of each sentence, for example Making web beautiful.
When would I use camelCase, PascalCase, snake_case, or kebab-case?
These are naming styles used in code and on the web. camelCase and PascalCase are common for variables and class names, snake_case is common in Python and database fields, and kebab-case is common in URLs, CSS classes, and file names.
Can it convert text that is already in one of these formats?
Yes. The tool splits input on spaces, hyphens, underscores, dots, and camelCase boundaries, so you can paste a value like userProfileName and turn it into user-profile-name or USER_PROFILE_NAME.
Does it keep my numbers and punctuation?
Numbers are kept. For the joined formats (camelCase, snake_case, kebab-case, and similar), spaces and separators between words are replaced by that format's separator, while the words and numbers stay in order.