Case Converter

Case conversion transforms the letter casing of text without changing its meaning. Developers need camelCase and snake_case for variable names; designers need title case for headings; editors normalize inconsistent capitalization in imported documents. Paste or type your source text, select the target format, and copy the result immediately.

Uppercase (ALL CAPS) shouts in prose but works for acronyms, legal disclaimers, and military call signs. Lowercase creates casual tone or normalizes user input before comparison. Title Case Capitalizes Major Words — useful for blog headlines, book titles, and presentation slides — while sentence case capitalizes only the first word and proper nouns, matching standard paragraph style.

Programming cases follow strict rules. camelCase joins words with capital letters after the first (myVariableName). PascalCase capitalizes the first letter too (MyClassName). snake_case uses underscores (my_variable_name), and kebab-case uses hyphens (my-variable-name). Each convention signals context: JavaScript variables, C# classes, Python modules, and URL slugs respectively.

Toggle case inverts every letter — handy for fixing accidental caps lock. Alternating case creates stylistic effects for memes or design mockups. When converting large blocks, review output for proper nouns and acronyms that title case may capitalize incorrectly.

Whether you are formatting a GitHub README, cleaning pasted spreadsheet headers, or preparing social posts with consistent styling, case conversion saves manual retyping across hundreds of characters.