Download 3FA

The first public build is on its way.

macOS

coming soon

Windows

coming soon

Linux

coming soon

Installing

Every download is a .zip containing the app plus a one-step installer:

macOS — unzip and run ./install.sh (installs to /Applications and registers the app). Or drag 3FA.app to Applications.
Windows — unzip and run install.ps1 (right-click → Run with PowerShell), which installs to %LOCALAPPDATA%\Programs\3FA.
Linux — unzip and run ./install.sh (installs the binary to ~/.local/bin and a .desktop entry).

Verify integrity before installing — compare the full SHA-256 above againstshasum -a 256 <file>.zip (macOS/Linux) orGet-FileHash <file>.zip (Windows). The installer also checks a bundled checksum manifest automatically and refuses to install on a mismatch. A matching checksum confirms the download wasn't corrupted in transit; for end-to-end authenticity, signed releases additionally ship a verifiable signature.