K has a few online communities with varying sizes.
- the k tree - A StackExchange based chat room which has the most regular visitors. Requires 20 reputation on the site. You can contact Razetime to request entry.
- The APL Farm(Discord, Matrix) - Chatrooms for discussing APL/J/K family languages. More than 300 members as of January 2022.
#kqon irc.libera.chat is frequented by a few K and Q users, but is not very active.