Skip to content


Subversion checkout URL

You can clone with
Download ZIP
Socket acceptor pool for TCP protocols.
Erlang Makefile
Branch: master

Add an error message when Transport:listen fails

Should be more user friendly.
latest commit 828ca8939b
@essen essen authored



Ranch is a socket acceptor pool for TCP protocols.


Ranch aims to provide everything you need to accept TCP connections with a small code base and low latency while being easy to use directly as an application or to embed into your own.

Ranch provides a modular design, letting you choose which transport and protocol are going to be used for a particular listener. Listeners accept and manage connections on one port, and include facilities to limit the number of concurrent connections. Connections are sorted into pools, each pool having a different configurable limit.

Ranch also allows you to upgrade the acceptor pool without having to close any of the currently opened sockets.

Getting started


Something went wrong with that request. Please try again.