Free Text Case Converter Online

Case Converter transforms text between different naming conventions used in programming and writing. Programming languages have inconsistent conventions: JavaScript uses camelCase for variables, Python uses snake_case for functions, CSS uses kebab-case for properties. Copy-pasted text often has the wrong case for its destination. This tool converts between UPPERCASE, lowercase, Title Case, Sentence case, camelCase, and snake_case instantly.

Each conversion mode applies a specific transformation: UPPERCASE converts all letters to A-Z; lowercase converts to a-z; Title Case capitalizes the first letter of each word; Sentence case capitalizes the first letter of the first word. camelCase removes spaces and capitalizes each word except the first (e.g., myVariableName); snake_case replaces spaces and converts to lowercase with underscores (e.g., my_variable_name). The tool processes the entire input in one pass.