Case Switcher

Convert text between uppercase/lowercase and other common case styles in a simple popup.

Case Switcher is a simple, popup-only Chrome extension that helps you convert text between common letter case styles in seconds. Paste or type your text, choose a conversion option (UPPERCASE, lowercase, Title Case, Sentence case, tOGGLE cASE, or Trim spaces), and instantly get the result in the output box. A one-click copy button makes it easy to reuse the converted text anywhere, and you can also swap input/output or clear everything quickly. The extension runs locally, works offline, and does not require any complicated permissions—designed to be fast, lightweight, and easy to use.