Text Case Converter
Upper/lower, snake/kebab, Zenkaku/Hankaku
Usage
Enter text and choose a conversion mode above to see the result instantly.
Example: selecting "snake_case" converts Hello World → hello_world.
FAQ
How are non‑Latin chars handled in snake/kebab?
Non‑alphanumerics are stripped; spaces become _ or -. Review the output for your use case.
Scope of Zenkaku/Hankaku conversion?
Targets ASCII‑range symbols and alphanumerics. Kana conversions are out of scope.
Locale sensitivity for upper/lower?
Follows standard JavaScript behavior. Some locales (e.g., Turkish i/I) may differ.