How to Convert PPK PuTTY File to PEM on OS X 10.11 or Later

If you don’t have PuTTY installed these days, use Homebrew to do it painlessly. Don’t have Homebrew?

Open Terminal and paste:

ruby -e "$(curl -fsSL

Then type the command:

brew install putty

Then PuTTY should just work fine without any hassle. The command for converting a PuTTY Private Key would be:

puttygen privatekey.ppk -O private-openssh -o privatekey.pem


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