v2fly/v2ray-core

V2Ray (v2ray-core) is an open-source platform for building privacy-focused network proxy tools that help users bypass internet censorship and access blocked content. It is the core engine behind what is broadly called "Project V," a collection of network tools designed to secure internet connections, particularly in environments where internet traffic is monitored or restricted. At its core, V2Ray acts as a flexible proxy framework. It accepts incoming traffic from a device, routes it through one or more configurable processing layers, and forwards it to its destination via encrypted tunnels that are difficult for censorship systems to detect or block. It supports numerous proxy protocols including VMess (its own encrypted protocol), Shadowsocks, SOCKS5, Trojan, and others. It can route traffic over WebSocket, HTTP/2, gRPC, QUIC, and other transports, allowing the connection to be disguised as ordinary web traffic that is harder to identify and block. V2Ray's design is modular: you configure inbounds (how traffic enters V2Ray), outbounds (where it goes), and routing rules (how to decide which outbound handles which traffic). This makes it possible to build sophisticated setups, for example, routing domestic traffic directly while tunneling foreign traffic through a proxy, or implementing split tunneling based on domain or IP rules. The README does not describe the full feature set in detail, based on the description, topics, and project structure, it is clear this is a technical tool aimed at developers and experienced users who want fine-grained control over proxy and routing behavior. You would use V2Ray if you need to circumvent internet censorship, build privacy-preserving network infrastructure, or create custom proxy setups. It is written in Go, runs on Linux, Windows, macOS, and various router firmware systems, and is configured via JSON.