classeur classeur is a clean-room file manager for Linux and Windows, strongly inspired by File Pilot: tabs in panels, a command palette, GoTo, a flat search of every folder below, batch rename, undo, drag and drop. One small native program; a folder of 100 000 files lists without a wait.

Screenshots

classeur with two panels: pictures in a grid on the left, the details of a home folder on the right
Two panels: the pictures as cards, the home folder in details, three folders selected.
GoTo with a path being typed
GoTo
Batch rename of three items
Batch rename
The search of every folder below
Every folder below
The command palette
The command palette
The inspector on a picture
The inspector
The options
The options