How to Convert Text Case Online
100% Client-SideCase Converter rewrites text into UPPERCASE, lowercase, Title Case, Sentence case, camelCase, PascalCase, snake_case, kebab-case, or CONSTANT_CASE entirely inside your browser. It splits each line into words using boundary detection for spaces, hyphens, underscores, and camelCase transitions, then rebuilds the text in your chosen style while preserving line breaks. Live word and character counts update as you type, and the whole conversion runs locally with nothing uploaded.
Open Case ConverterHow It Works
Paste Your Text
Paste single or multiline text into the workspace and watch the live word/character counts.
Pick a Case Style
Choose from 9 case styles, including camelCase, snake_case, and CONSTANT_CASE.
Copy or Download
Copy the converted text to your clipboard or download it as a .txt file.
Frequently Asked Questions
Does this tool support multiline text?
Yes. Line breaks are preserved, and each line is converted independently, so pasting multiple lines, lists, or paragraphs works as expected.
How are word and character counts calculated?
Word count splits on whitespace and counts non-empty segments. Character count is the full length of the text, including spaces and punctuation.
Can I download the converted text?
Yes. After converting, use the Download button to save the output as a .txt file, or use Copy Output to copy it to your clipboard.