A small caps generator converts lowercase text to uppercase text, but with the original x-height of the lowercase letters. There are a number of online small caps generators that do the conversion right on the Web page, eliminating the need for any software to be downloaded.
A small caps generator is most useful when wanting to use a small caps font on a Web platform, such as Facebook or an email client. For documents that are created using software installed on a computer, it is better to simply download a small caps font. Small caps generators often use Unicode letters for the outputted text to maximize website compatibility.