Flume for macOS
One universal build covers Apple Silicon and Intel. It is signed and notarized, so it opens without an argument.
macOS 12 Monterey or later
Version 1.4.1, released 19 October 2026. Free and open source under Apache-2.0.
Downloads for macOS
There is only one download
The macOS build is a universal binary — Apple Silicon and Intel in the same file, picked at launch. You do not need to know which Mac you have, and there is no wrong choice to make.
Gatekeeper will not stop you
The build is signed with a Developer ID and notarized by Apple, so it opens on first launch like anything from the App Store. If macOS does object, the download did not finish cleanly — fetch it again rather than working around the warning.
Installing
Open the .dmg and drag Flume to Applications. Magnet links are handled once it has run for the first time, so open it directly before expecting a magnet link in a browser to reach it.