Case Converter — change text case free in your browser
Switch any text between UPPERCASE, lowercase, Title Case and more — instantly.
This tool runs entirely in your browser. Your files are never uploaded — they stay on your device.
Retyping a heading in the right case or reformatting a variable name is a small chore that adds up fast. This case converter does it in one click: paste your text, pick a style, and the result appears in place — UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case or kebab-case.
Everything happens right here in your browser. Your text is never sent to a server, so it stays private even for confidential notes, code or client copy.
How to use Case Converter
- Type or paste your text into the box.
- Click the case style you want, such as UPPERCASE, Title Case or camelCase.
- The text is converted in place, ready to read or edit further.
- Click “Copy result” to copy the converted text to your clipboard.
Frequently asked questions
Is my text uploaded to a server?
No. The conversion runs entirely in your browser with plain JavaScript. Your text never leaves your device, so it is safe for private or sensitive content.
What case styles are supported?
UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case and kebab-case. You can apply them in any order and chain them together.
What is the difference between Title Case and Sentence case?
Title Case capitalizes the first letter of every word, which suits headings. Sentence case capitalizes only the first letter of each sentence, like normal prose.
How do camelCase, snake_case and kebab-case treat spaces?
They split your text into words and rejoin them: camelCase removes spaces and capitalizes each word after the first, snake_case joins words with underscores, and kebab-case joins them with hyphens.
Is there a limit on how much text I can convert?
There is no fixed limit. Because the work happens on your device, you can convert anything from a single word to long documents.