FilePop lives in the menu bar and pops open over whatever you’re doing on a global hotkey — grab a file, drop it into Mail or Slack, then hit the hotkey again to tuck it away. Hover a folder mid-drag and it springs open, so you can walk deeper into a path without ever releasing the mouse. A one-column mini mode handles quick grabs; expand to a full three-column browser when you need to actually explore.