shortshare.app
Shortshare is a utility application for URL shortener services, supporting 14 established services plus custom APIs and self-hosted solutions such as YOURLS. It shortens URLs via a menu bar icon, keyboard shortcut, Safari App Extension, Share Extension or the Windows Share menu, and supports custom URL keywords where the service allows. Link history synchronises across macOS and iOS devices via iCloud. The developer states it is no longer available for iOS and macOS.