centrifugal
Scalable real-time messaging server in a language-agnostic way. Self-hosted alternative to Pubnub, Pusher, Ably, socket.io, Phoenix.PubSub, SignalR. Set up once and forever.
ninenines
Small, fast, modern HTTP server for Erlang/OTP.
go-gost
GO Simple Tunnel - a simple tunnel written in golang
denji
HTTP(S) benchmark tools, testing/debugging, & restAPI (RESTful)