explaingit

v2ray/v2ray-core

46,849GoAudience · developerComplexity · 4/5ActiveLicenseSetup · moderate

TLDR

A modular network proxy platform that routes traffic through intermediary servers using multiple protocols to bypass censorship and network restrictions.

Mindmap

mindmap
  root((repo))
    What it does
      Routes internet traffic
      Bypasses restrictions
      Supports multiple protocols
    Protocols supported
      VMess
      SOCKS
      HTTP
      Shadowsocks
    Configuration
      JSON config files
      Inbound listeners
      Outbound connections
      Routing rules
    Transport options
      Raw TCP
      WebSocket
      gRPC
    Use cases
      Traverse blocked networks
      Fine-grained routing
      Network tool building
    Tech stack
      Go language
      Linux, macOS, Windows

Things people build with this

USE CASE 1

Build a proxy server that routes traffic through multiple protocols to evade network censorship.

USE CASE 2

Create a network tool with fine-grained control over how different types of traffic are routed and encrypted.

USE CASE 3

Set up a client that disguises proxy traffic as ordinary HTTPS web traffic using WebSocket or gRPC.

USE CASE 4

Configure inbound and outbound connections with JSON to handle complex routing scenarios across restricted networks.

Tech stack

GoJSONTCPWebSocketgRPC

Getting it running

Difficulty · moderate Time to first run · 30min

Requires Go runtime and understanding of proxy configuration; need to set up at least two instances (client and server) to see traffic routing work.

Use freely for any purpose including commercial, as long as you keep the copyright notice.

In plain English

V2Ray is a platform for building network proxies, tools that route your internet traffic through intermediary servers in order to bypass regional restrictions, censorship, or surveillance. The core problem it addresses is that in some network environments, access to certain websites or services is blocked at the network level, and standard VPN protocols may themselves be blocked or detectable. V2Ray provides a modular framework that supports multiple proxy protocols including VMess (its own protocol), SOCKS, HTTP, and Shadowsocks, which can be combined and configured in various ways to make traffic harder to detect and block. The README for this particular repository is sparse, it notes that active development has moved to a fork at github.com/v2fly/v2ray-core. Based on the description and topics, the project is a Go-language library and runtime that handles the inbound and outbound traffic routing, protocol negotiation, and transport layer configuration that proxy clients and servers need. Operators configure it with a JSON configuration file that defines inbound listeners (where traffic enters), outbound connections (where traffic exits), and routing rules that direct traffic between them. It supports transport over WebSocket and gRPC in addition to raw TCP, allowing proxy traffic to be disguised as ordinary HTTPS web traffic. You would use V2Ray (or its maintained fork V2Fly) when you need to traverse network restrictions that block simpler VPN solutions, when you need fine-grained control over how different categories of traffic are routed, or when you are building a network tool that needs a flexible proxy substrate. It is written in Go and runs on Linux, macOS, and Windows.

Copy-paste prompts

Prompt 1
How do I set up a V2Ray proxy server using the VMess protocol with a JSON configuration file?
Prompt 2
Show me how to configure V2Ray to route different traffic types through different outbound connections based on domain rules.
Prompt 3
How can I disguise V2Ray proxy traffic as normal HTTPS traffic using WebSocket transport?
Prompt 4
What are the differences between VMess, SOCKS, and Shadowsocks protocols in V2Ray, and when should I use each one?
Prompt 5
How do I build a custom network tool that uses V2Ray-core as its proxy substrate?
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Generated 2026-05-18 · Model: sonnet-4-6 · Verify against the repo before relying on details.