| QChar | Lightweight Unicode character | 
| QCharRef | Helper class for QString | 
| QConstString | String objects using constant Unicode data | 
| QCString | Abstraction of the classic C zero-terminated char array (char *) | 
| QLabel | Text or image display | 
| QLocale | Converts between numbers and their string representations in various languages | 
| QSimpleRichText | Small displayable piece of rich text | 
| QString | Abstraction of Unicode text and the classic C '\0'-terminated char array | 
| QStringList | List of strings | 
| QStrList | Doubly-linked list of char* | 
| QStyleSheet | Collection of styles for rich text rendering and a generator of tags | 
| QStyleSheetItem | Encapsulation of a set of text styles | 
| QSyntaxHighlighter | Base class for implementing QTextEdit syntax highlighters | 
| QTextBrowser | Rich text browser with hypertext navigation | 
| QTextEdit | Powerful single-page rich text editor | 
| QTextIStream | Convenience class for input streams | 
| QTextOStream | Convenience class for output streams | 
| QTextStream | Basic functions for reading and writing text using a QIODevice |