About these naming conventions
This tool recognizes camelCase humps, PascalCase, and underscore/hyphen separators automatically, so the "From" format is mostly for a meaningful swap button - paste any style of input and it'll be split into words correctly regardless of which one you picked. camelCase, PascalCase, snake_case, and CONSTANT_CASE are the most common programming identifier styles; kebab-case shows up constantly in URLs and CSS; Train-Case is what HTTP headers use (Content-Type); Ada_Case is Ada's standard. iNVERT cASE and aLtErNaTiNg CaSe are novelties, not real naming conventions - they flip existing letters directly instead of reformatting word boundaries.