Case Converter
A case converter transforms text between different letter case formats with a single click. It supports uppercase, lowercase, title case, sentence case, alternating case, and inverse case. This is invaluable when you copy text from one source and need to reformat it for another. Programmers use it to normalize variable names between camelCase and snake_case. Social media managers reformat content for different platforms. Writers adjust headline formatting for different publications. The tool handles large amounts of text instantly and works entirely in your browser with no server uploads. The converter applies case transformation rules to each character. Uppercase converts all letters to capitals. Lowercase converts everything to small letters. Title case capitalizes major words while leaving articles and prepositions lowercase. Sentence case capitalizes only the first word of each sentence. Alternating case cycles through uppercase and lowercase. Inverse case flips the existing case of each character. All transformations preserve numbers, punctuation, and special characters. Reformatting imported text from PDFs or emails. Converting database exports where data is stored in all caps. Formatting book titles and headlines for publishing. Normalizing user-generated content for consistency. Creating stylized text for social media. Converting programming variable names between naming conventions. Formatting legal documents that require specific case usage. Related tools: Word Counter, Remove Line Breaks, Text Reverser, Lorem Ipsum Generator, URL Slug Generator. Browse all 123 free tools on the KitCraft home page.