OpenSSH is the product that started it all. It is *the* standard. Its keygen files are not proprietary and are accepted everywhere. Even though it’s free, you can still get paid support. However, there’s so much free information that paid support is not needed. Review collected by and hosted on G2.com.

There’s nothing to dislike. It’s the standard that everyone else is copying. Review collected by and hosted on G2.com.