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Up to nine panes
Split a window into two to nine panes, drag the dividers, and keep the folders you compare side by side.
In development · macOS 14+
Files, in parallel.
Trellis is a native Mac file manager built around panes, tabs, and workspaces. Move files between folders and servers without stacking windows.
What it does
One window, every folder.
The Finder is fine for one folder at a time. Trellis is for the rest of the day.
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Tabs and workspaces
Keep tabs in every pane and save the whole layout as a named workspace you can return to in one click.
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SFTP built in
Browse a remote folder like a local one, upload and download with progress, and reconnect quietly when the network drops.
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Moves between panes
Copy or move files across panes — local or remote — without dragging through the Finder.
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Folder comparison
Compare two folders by size and modification time, see what differs, and copy only what you choose. Nothing is deleted.
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Finder-aligned
Delete, Get Info, cut and paste, label colors, and keyboard shortcuts behave the way Finder users expect.
In development
Still in development.
Trellis has not shipped yet. It is being prepared for the Mac App Store; a release date and price will be announced when they are final.
This page describes the app as it stands today. Features may change before release.