Writing and developer tool
Text case converter
Transform copied text into the casing you need for a sentence, heading, identifier, slug, or constant. The preview updates as you type and the conversion runs in the browser.
Supported modes include lowercase, UPPERCASE, Sentence case, Title Case, camelCase, snake_case, kebab-case, and CONSTANT_CASE.
How to convert text case
- Paste or type your text. Add the phrase, paragraph, or identifier you want to transform.
- Choose a mode. Select the writing or programming style that matches your destination.
- Copy the preview. Use the copy action to take the converted text into another document or editor.
Available case modes
- lowercase for normalized text.
- UPPERCASE for labels and emphasis.
- Sentence case and Title Case for readable copy.
- camelCase, snake_case, kebab-case, and CONSTANT_CASE for identifiers.
- Live preview and browser-local processing.
Text case FAQ
Common questions
Can I convert a whole paragraph?
Yes. Paste a paragraph or multiple lines into the input. The selected case mode updates the preview across the text.
Which case is best for a URL slug?
kebab-case is a common readable choice for slugs, but check the conventions of the site or system where the value will be used.
Does the converter send my text anywhere?
The conversion is performed in the browser. The tool does not need a server request to transform the text.
Can I use it for code identifiers?
Yes. camelCase, snake_case, kebab-case, and CONSTANT_CASE are included for common identifier and naming conventions.