Fact · Dictation on Mac
Karabiner-Elements, a free keyboard remapping tool for macOS, cannot modify the fn key on keyboards that are not made by Apple, such as Logitech keyboards.
Checked against its source on October 16, 2026
In the source's own words
“Karabiner-Elements cannot modify the fn key on non-Apple keyboards such as Logitech keyboards.”
Karabiner-Elements: Features, Karabiner-Elements project, Karabiner-Elements documentation (pqrs.org), n.d., Page text, sentence on the fn key.
Open the original- What it measures
- A remapping tool is one way to change which key starts Dictation when the built-in choices are not enough. The limit means that the fn key route works only with Apple's keyboards.
- What it does not show
- The page does not list every keyboard the tool cannot change, and it does not describe the effect on Dictation. Remapping keys can also clash with the built-in shortcut, so check the Dictation shortcut after you make a change.