Boo

什麼是 Boo？

Boo is a free, open source menu-bar app for macOS that quietly sorts your Downloads folder as files arrive. Known file types move into the right folder automatically, no setup, no rules to write. See a file type Boo hasn't met before? It pops up once, asks where it goes, then remembers for good. Native Swift, a couple MB, no Electron. Built because Downloads folders shouldn't be a landfill.