Case Converter

About this Case Converter

This case converter is a free online tool that changes the letter case of any text in a single click. Paste or type your content into the input box, choose one of the conversion buttons, and the reformatted text appears instantly in the result box. It is perfect for fixing text that was typed with caps lock on, preparing headings, or matching a required style without retyping anything.

The tool supports several common formats. UPPERCASE makes every letter capital, while lowercase makes every letter small. Title Case capitalises the first letter of each word for headings and titles, and Sentence case capitalises only the first letter of each sentence. Capitalize Each Word works like title case across all words, aLtErNaTiNg alternates between lower and upper letters, and iNVERSE swaps the existing case of every character.

Writers, students, developers, and social media users rely on case converters to clean up copied text, format spreadsheets and code, create stylised captions, and quickly standardise large blocks of writing. Everything runs locally in your browser, so your text is never uploaded or stored, and you can use the Copy button to grab the result for use anywhere.

Note: Sentence and title case use common capitalisation rules and may not handle every proper noun, abbreviation, or special style guide exactly. Review the output for important documents and adjust any names or acronyms as needed.