# Function Keys > A macOS menu bar app that shows and switches whether F1, F2 and the other function keys act as standard function keys or hardware controls. Requires macOS 13 or later. The app changes the macOS keyboard preference; it does not remap individual keys. ## Project reference - [Function Keys reference](https://oneill9.github.io/function-keys/llms.md): Installation, menu behaviour, requirements and build instructions in Markdown. - [Project homepage](https://oneill9.github.io/function-keys/): App overview and screenshots. - [README](https://raw.githubusercontent.com/oneill9/function-keys/main/README.md): Maintained project documentation. - [Latest release](https://github.com/oneill9/function-keys/releases/latest): Release notes and downloadable app. ## Optional - [Source repository](https://github.com/oneill9/function-keys): Swift source, tests and issue tracker. - [Release process](https://oneill9.github.io/function-keys/release.md): How signed and notarized releases are built.