Is Sumatra File Manager available for Mac or Linux?

The current release is a Windows application.

Sumatra File Manager

Fast, small. A file manager for Windows.

Tabs, filter, themes, compact launcher. Packed with features.

Tabs Filter Themes Compact mode Screenshots Recycle Bin Command palette

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Home view — drives, places, and favorites

Lightweight and fast — a native Windows app that starts instantly
Home view — drives and Explorer Quick access folders in one place
Compact mode — double-click the caption to shrink to a launcher for Start Menu and PATH programs
Tabs and split panes — work in several folders without extra windows
Filter as you type — Ctrl+F to narrow the list
Command palette — Ctrl+K to run any command
Themes — light, dark, and a built-in theme picker
Windows 10 and 11 — 64-bit portable .exe, no installer required

Do I need to install it?: No. The download is a portable 64-bit .exe. Put it anywhere and run it.
Is it available for Mac or Linux?: The current release is Windows-only.
How is this related to Sumatra PDF?: Same author, same idea: a small, fast Windows tool without bloat.