Convert text to UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case and more, instantly and free.
Last updated 23 June 2026 · Built and maintained by Mustafa Bilgic
Stop retyping text just to fix capitalization. Paste your text, click a style, and this case converter rewrites it instantly. It supports the eight most-used cases for writing, coding, and data cleanup, and it never sends your text to a server.
| Case | Example |
|---|---|
| UPPERCASE | THE QUICK BROWN FOX |
| lowercase | the quick brown fox |
| Title Case | The Quick Brown Fox |
| Sentence case | The quick brown fox |
| camelCase | theQuickBrownFox |
| snake_case | the_quick_brown_fox |
| kebab-case | the-quick-brown-fox |
| aLtErNaTiNg | tHe QuIcK bRoWn FoX |
Title Case capitalizes the first letter of every word. It is the most common style for headings and product names. For strict editorial title case that lowercases short words, review the result manually.
Sentence case capitalizes only the first letter of each sentence, like normal prose. Title Case capitalizes the first letter of every word.
These are programming and slug conventions. camelCase is common in JavaScript variables, snake_case in Python and databases, and kebab-case in URLs and CSS class names.
Conversions read from the input box each time, so you can click multiple styles in a row. Editing the box resets the source for the next conversion.
Yes. The converter runs entirely in your browser with JavaScript. Nothing is uploaded, so it is safe for sensitive content.