Text Case Converter

Capitalize the first letter of each sentence while converting everything else to lowercase. Perfect for cleaning up messy text into readable paragraphs.

Convert all text to lowercase letters instantly. Ideal for normalizing data, creating CSS class names, or preparing text for case-sensitive comparisons.

Transform your entire text to uppercase letters online. Commonly used for headings, acronyms, emphasis, or formatting text for official documents.

Capitalize the first letter of every word in your text. Great for formatting names, titles, addresses, or any text where each word should start with a capital letter.

Switch each character between lowercase and uppercase, starting with lowercase. Popular for memes, sarcastic text, and playful social media posts.

Apply professional title capitalization following AP/Chicago style rules. Short words like 'a', 'the', 'of' stay lowercase unless they start the title.

Flip the case of every letter — uppercase becomes lowercase and vice versa. Useful for creative text effects and reversing accidental caps lock typing.