Macbook Air – Hash Key

This post is regarding the old Macbook Air with no visible # symbol on the Keyboard. On new Macbook Airs – it’s simply Shift-3

Okay, this is a bit ‘niche’-ey. I have a US Macbook air with UK Keyboard layout and have spent a few months passively looking for the ‘hash’ key, whilst sort of admitting to myself that I’d probably bought a £1200 machine with no DVD drive, no changeable battery and NO HASH KEY.

But.. about that one, I was wrong… There is a hash key!

Anyone with a US Macbook Air on UK Layout : Ctrl-Alt-3



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  1. Anthony says:

    Hey! I noticed you added me on Twitter (shift_)

    What WordPress plugin did you use for the “Share this” social bookmarking icons?!

    1. Hi Anthony,

      It’s called Sociable. It’s available at the wordpress plugin repository.


  2. murpheux says:

    Just bought my first mac. I am facing same issue here but ctrl+Alt+3 don’t seem to work for me

  3. Sam says:

    Thanks for the tip ! I’ve just inherited a Mac Book Air, and really needed the hash key (for comments in a high level programming language). On my computer is is alt 3 not control alt 3.