A macOS tool that automatically switches your keyboard's Fn key behavior between Apple defaults and function keys based on the active application.
Fluor is a macOS application that automatically switches your keyboard's Fn key behavior between Apple's default media/control keys and traditional function keys (F1, F2, etc.) based on which application is currently active. It eliminates the need to manually toggle Fn key modes when switching between apps like design software, development environments, and media players. The tool runs quietly in your menu bar with visual indicators showing the current mode.
Mac users who frequently switch between applications requiring different keyboard behaviors—particularly developers, designers, and power users who need traditional function keys for some apps and Apple's media controls for others.
Fluor provides a free, open-source alternative to manual Fn key toggling or paid utilities, with a clean interface and per-application automation that just works. Unlike system settings that offer only global changes, Fluor gives you granular control without complexity.
A handy tool for macOS allowing you to switch Fn keys' mode based on active application.
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Automatically switches Fn key behavior based on the active application, eliminating manual toggling—evident from the Rules Editor and status bar icons that update in real time.
Clear menu bar icons (e.g., apple icon for defaults, Fn icon for function keys) provide instant visibility into the current keyboard mode, as shown in the README's status bar screenshot.
Intuitive Rules Editor allows per-application rules, with special support for running apps like Steam games, making it adaptable to hard-to-configure software.
Completely free with MIT-licensed source code, enabling customization and transparency, as emphasized in the 'Why is it open source?' section.
The README explicitly states it is out-of-date, risking confusion during setup or troubleshooting, and may not reflect current compatibility or features.
Cannot be distributed via the Mac App Store due to lack of sandboxing, requiring manual DMG or Homebrew installation, which might raise security concerns for some users.
Built with Swift 4.0, an older version, which could lead to instability or lack of support on newer macOS versions without active maintenance.