Case Converter

Changing the capitalisation of text by hand is tedious and error-prone, especially for long passages. A case converter does it instantly and consistently, whether you need to shout a headline in UPPERCASE, tidy up text that was accidentally typed with caps lock on, or apply the specific capitalisation that a style guide or programming language demands. What would take minutes of careful retyping happens in a single click.

The different cases each serve a purpose. Title Case capitalises the first letter of each major word and is standard for headlines, book titles, and headings. Sentence case capitalises only the first word and proper nouns, matching normal prose. UPPERCASE and lowercase are useful for emphasis, normalising data, or meeting field requirements. Programmers rely on camelCase, PascalCase, snake_case, and kebab-case as naming conventions for variables, functions, files, and URLs — each language and framework has its own preferred style.

Because all conversion happens in your browser, you can paste sensitive or unpublished text without it ever being sent to a server. This makes the tool safe for confidential documents, draft content, and code. Simply paste your text, pick the case you need, and copy the transformed result — no sign-up, no limits, and nothing stored.