Case Converter
Paste your text, pick a case, and copy the result — instantly. UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case and kebab-case.
How to convert text case
- Paste your text into the box above — anything from a single word to a whole document.
- Pick a case. The result updates instantly as you type or switch cases.
- Copy or download. One click copies the converted text to your clipboard, or save it as a .txt file.
When each case is useful
UPPERCASE is handy for headings, labels and emphasis. lowercase quickly fixes text that was typed with Caps Lock on. Title Case is the standard for headlines and titles, while Sentence case restores normal writing. Developers use camelCase, snake_case and kebab-case for variables, file names, URLs and CSS classes — this tool converts between all of them without retyping anything.
Frequently asked questions
Is this case converter free?
Yes — completely free, with no signup, no limits and no watermarks. It will stay that way.
Is my text uploaded to a server?
No. The conversion happens entirely inside your browser using JavaScript. Your text never leaves your device, which also makes the tool GDPR-friendly.
What is the difference between Title Case and Sentence case?
Title Case Capitalizes The First Letter Of Every Word — commonly used for headlines. Sentence case only capitalizes the first letter of each sentence, like normal writing.
What are camelCase, snake_case and kebab-case used for?
They are naming styles used in programming: camelCase is common in JavaScript variables, snake_case in Python, and kebab-case in URLs and CSS class names.
Does it work on mobile?
Yes — the tool works in any modern browser on phones, tablets and computers, and even works offline once the page is loaded.