Unchain is a lightweight and easy-to-use proxy server designed to bypass network restrictions, censorship, and surveillance effectively.

• Protocol Support: Seamlessly handles TCP and UDP (VLESS) packets over WebSocket with TLS/Cloudflare support.
• Build Your Own VPN Business: Provides a robust platform for starting your own VPN services.
• Compatibility: Fully compatible with popular proxy clients like v2rayN or any application supporting the VLESS + WebSocket protocol.

Unchain operates as a proxy/VPN server, compatible with popular proxy clients such as v2rayN or any application that supports the VLESS+WebSocket protocol. It accepts traffic from various client applications, including:

• v2rayN
• v2rayA
• Clash
• v2rayNG
• iOS app Shadowrocket

Unchain processes incoming traffic and securely forwards it to the destination server, ensuring both security and efficiency in communication.

Unchain is a dead simple VLESS over websocket proxy server. The core biz logic is only 200 lines of code. app_ws_vless.go.

Unchain server uses a simple architecture that is VLESS over WebSocket (WS) + TLS.

             V2rayN,V2rayA,Clash or ShadowRocket                          
                 +------------------+
                 |   VLESS Client   |
                 |   +-----------+  |
                 |   | TLS Layer  | |
                 |   +-----------+  |
                 |   | WebSocket  | |
                 |   +-----------+  |
                 +--------|---------+
                          |
                          | Encrypted VLESS Traffic (wss://)
                          |
           +--------------------------------------+
           |         Internet (TLS Secured)       |
           +--------------------------------------+
                          |
                          |
        +-----------------------------------+
        |        Reverse Proxy Server       |
        | (e.g., Nginx or Cloudflare)       |
        |                                   |
        |   +---------------------------+   |
        |   | HTTPS/TLS Termination     |   |
        |   +---------------------------+   |
        |   | WebSocket Proxy (wss://)  |   |
        |   +---------------------------+   |
        |     Forward to VLESS Server       |
        +------------------|----------------+
                           |
           +--------------------------------+
           |     Unchain       Server       |
           |                                |
           |   +------------------------+   |
           |   | WebSocket Handler      |   |
           |   +------------------------+   |
           |   | VLESS Core Processing  |   |
           |   +------------------------+   |
           |                                |
           |   Forward Traffic to Target    |
           +------------------|-------------+
                              |
                     +-----------------+
                     | Target Server   |
                     | or Destination  |
                     +-----------------+

To build from source, follow these steps:

1. Clone the repository and navigate to the cmd/node directory:

   cd cmd/node

2. Copy the example configuration file and customize it:

   cp config.example.standalone.toml config.toml

3. Run the application:

   go run main.go

You can deploy the application on an Ubuntu server using GitHub Actions. Here's how:

1. Fork the repository to your GitHub account.

2. Create an Environment named production in your repository settings.

3. Add the following SSH connection details to the Environment Secrets:

   • EC2_HOST: The SSH host with port (e.g., 1.1.1.1:20).
   • EC2_USER: The SSH user (e.g., ubuntu).
   • EC2_KEY: Your SSH private key.

4. Add your TOML configuration file content to the Environment Variables:

   • CONFIG_TOML: Copy the content of your config.toml file, replace all " with ', and paste it here.

learn more in .github/workflows/deploy.sh

Once the application is running, you will see a VLESS connection schema URL in the standard output. Copy and paste this URL into your V2rayN client.

Congratulations! You now have your self-hosted proxy server up and running.

create an RESTful API for chain proxy server push : Register API example code

Using the cloudflare page UnchainAdmin start your own VPN business.