Toggle case is a text format that switches letter capitalization to the opposite style. Uppercase letters become lowercase, and lowercase letters become uppercase. For example, “This Sample Text” can become “tHIS sAMPLE tEXT”.
A toggle case converter helps you create this effect instantly without changing every letter manually. It is useful when you want reversed capitalization, playful text, stylized captions, creative messages, or a quick way to flip the case of copied content.