Case Converter

A case converter that transforms any text into eight cases in one click — UPPERCASE, lowercase, Title Case, Sentence case, camelCase, PascalCase, snake_case and kebab-case — splitting on spaces, punctuation and existing camelCase humps.

This converter fixes text stuck in the wrong case in one click: paste the text, pick the target case, convert, and copy the result. Retyping text because it arrived in the wrong case is a small, constant tax on anyone who writes or codes. It handles the everyday writing cases — UPPERCASE for headings and legal emphasis, lowercase to calm down text typed with caps lock on, Title Case for headlines, and Sentence case to restore normal prose capitalisation after each full stop.

It's equally at home with the four programmer cases. camelCase (first word lowercase, subsequent words capitalised) is standard for JavaScript and Java variables; PascalCase for class and component names; snake_case for Python variables, database columns and constants; kebab-case for URLs, CSS classes and file names. The converter is smart about word boundaries: it splits on spaces and punctuation and also recognises existing camelCase humps, so pasting a variable name like userEmailAddress and choosing snake_case correctly produces user_email_address rather than one long word.

Typical uses: cleaning up copy pasted from a PDF or an email written in caps, renaming a batch of identifiers when moving code between languages with different conventions, generating a slug-style kebab-case string for a URL, or standardising product names in a spreadsheet before import. Everything runs locally in your browser and nothing is stored.