Case converter
Convert between 11 case styles — camelCase, PascalCase, snake_case, SCREAMING_SNAKE, kebab-case, COBOL-CASE, dot.case, Title Case, Sentence case, lower, UPPER.
/tools/case turns any string into 11 case variants at once. Paste your input, copy whichever line you need.
The tokenizer detects camelCase boundaries, so getUserById round-trips through every form cleanly: get_user_by_id, GET-USER-BY-ID, Get User By Id, etc. It handles consecutive capitals too (URLParser splits at URL / Parser, not at every letter) and treats any non-alphanumeric character as a separator.
Useful for keeping identifiers consistent when you’re translating between languages (Go’s PascalCase exports, Python’s snake_case, JSON keys in kebab-case, env vars in SCREAMING_SNAKE) or when you’re refactoring a database column.