Skip to content
On this page

What is Clash?

Welcome to the official knowledge base of the Clash core project ("Clash").

Clash is a cross-platform rule-based proxy utility that runs on the network and application layer, it has been adopted widely by the Internet users in some countries and regions. Either way, Clash can be used by anyone who wants to improve their Internet experience.

There are currently two editions of Clash:

While this wiki covers both, however, the use of Clash could be challenging for the average users. Those might want to consider using a GUI client instead, and we do have some recommendations:

Feature Overview

  • Inbound: HTTP, HTTPS, SOCKS5 server, TUN device*
  • Outbound: Shadowsocks(R), VMess, Trojan, Snell, SOCKS5, HTTP(S), Wireguard*
  • Rule-based Routing: dynamic scripting, domain, IP addresses, process name and more*
  • Fake-IP DNS: minimises impact on DNS pollution and improves network performance
  • Transparent Proxy: Redirect TCP and TProxy TCP/UDP with automatic route table/rule management*
  • Proxy Groups: automatic fallback, load balancing or latency testing
  • Remote Providers: load remote proxy lists dynamically
  • RESTful API: update configuration in-place via a comprehensive API

*: Only available in the Premium edition.


Clash is released under the GPL-3.0 open-source license. Prior to v0.16.0 or commit e5284c, it was licensed under the MIT license.