TextExpander is a productivity tool that allows users to create shortcuts for frequently used text snippets. By typing a short abbreviation, users can quickly insert longer phrases, sentences, or even entire paragraphs into their documents, emails, or messages. This feature helps save time and reduce repetitive typing. The application is available on various platforms, including macOS, Windows, and iOS. It is particularly useful for professionals who often send similar responses or need to input standard information, such as contact details or signatures, enhancing efficiency in daily tasks.