A Finder alternative that shows you folder sizes
Foldy is a native Finder alternative for macOS 14 Sonoma and later. It measures folder sizes as you browse, sorts folders by size, filters any folder by kind, date and size, and can open whenever another app asks to “Show in Finder”.
What Finder doesn't do
Finder is fine for moving files around, but a few everyday questions are hard to answer with it:
- Which folder is big? List view only shows folder sizes if you turn on “Calculate all sizes”, and it fills them in slowly.
- Sorting by size leaves folders out of order, because their sizes often aren't known.
- Where did this download come from? The source address is buried in Get Info.
- Hidden files need ⇧⌘. and you have to know the shortcut exists.
What Foldy does instead
| Finder | Foldy | |
|---|---|---|
| Folder sizes | Off by default, slow | Measured as you browse |
| Sort folders by size | Not reliable | Yes |
| Filter by kind, date and size | Through Smart Folders | Above every folder |
| Preview video | Quick Look window | Plays in the side panel |
| Copy a file's full path | ⌥ + right-click menu | ⌥⌘C, or the path bar |
| Search from any app | Spotlight | ⇧⌘Space, understands “pdfs from last week” |
| Recent screenshots and copied files | Not collected | On the Shelf, ready to drag |
| See what's using disk space | Not built in | Space Map and Reclaim |
Can it fully replace Finder?
Not entirely, and no app can. macOS keeps the Desktop, the Dock, the Trash and double-clicked folders with Finder. What you can change is where “Show in Finder” goes: in Foldy, open Settings → General and turn on Open “Show in Finder” here. Browsers, download lists and other apps then reveal files in Foldy. Apps that were already open pick this up after they restart.
Other Finder alternatives
Dual-pane file managers such as ForkLift and Commander One are built for moving files between folders and servers, with FTP and cloud connections. Path Finder adds many power-user tools on top of Finder's layout. Foldy takes a different route: a single, quiet window that answers “what is this and how big is it”, with a disk map and a careful cleaner built in.
Requirements and price
Foldy runs on macOS 14 Sonoma or later, on Apple silicon and Intel. It costs $12 once for one Mac ($7 for the first 200 buyers), $18 for three or $24 for five, with a 7-day free trial.