📦sing-box

sing-box

🌟 sing-box is an emerging cross-platform proxy software that has gained user favor for its excellent performance, modern architecture, and completely free nature.

✨ Product Highlights

🎯 Core Advantages

• 🆓 Completely Free: Open source project, permanently free to use

• 🌍 Cross-Platform Support: Windows, macOS, Linux, Android, iOS

• 🚀 Exceptional Performance: Developed in Go language with high-performance architecture

• 🔄 Continuous Updates: Active development team with regular maintenance updates

• 🛡️ Secure & Reliable: Modern security mechanisms with transparent open source code

🌟 Featured Functions

Feature	Description	Advantages
🎭 Multiple Inbounds	Support for various inbound protocols	Flexible configuration
🔀 Smart Routing	Powerful routing rule system	Precise traffic splitting
📊 Real-time Monitoring	Detailed connection and traffic statistics	Easy management
🔧 Hot Reload	Support for configuration hot reload	No restart required
🎯 DNS Optimization	Built-in DNS server	Accelerated resolution

🔗 Protocol Support

Protocol Type	Support Status	Feature Description
🔒 Shadowsocks	✅	Full functionality support including various encryption algorithms
🌟 VMess	✅	V2Ray protocol with complete features
🛡️ Trojan	✅	TLS traffic disguise, secure and reliable
🚀 Hysteria 2	✅	High-speed QUIC-based protocol
⚡ VLESS	✅	Lightweight protocol with excellent performance
🔐 WireGuard	✅	Modern VPN protocol
🌊 TUIC	✅	New QUIC-based protocol

📱 System Requirements

• Minimum Version: Android 5.0 (API 21) and above

• Recommended Version: Android 8.0 and above

• Compatible Devices: Android phones / tablets

• Architecture Support: ARM64, ARM, x86_64

• Storage Required: Approximately 80MB available space

• Memory Required: Recommended 2GB RAM or more

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📥 Download & Installation

🔗 Official Release

📌 Version Note: sing-box provides an Android version called SFA (sing-box for Android)

Download Source	Version	Filename
🏠 GitHub Release	1.12.4	SFA-1.12.4-universal.apk
🚀 Mirror Accelerator 1	1.12.4	Accelerated Download
🚀 Mirror Accelerator 2	1.12.4	Backup Link

🛠️ Installation Guide

1. Preparation

   • Ensure device meets system requirements

   • Allow installation from unknown sources

2. Download & Install

   • Choose appropriate download source

   • Download APK file to device

   • Tap file to begin installation

3. Grant Permissions

   • Grant network access permissions

   • Allow VPN connection permissions (on first startup)

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🚀 Usage Tutorial

📋 Quick Start

🔥 Configuration Flow

1. 📱 Launch Application - Open sing-box (SFA)

2. 📂 Import Configuration - Add configuration files or subscriptions

3. 🌐 Select Server - Choose from available nodes

4. 🚀 Start Service - Enable proxy connection

5. ✅ Verify Connection - Confirm network proxy is functioning

🎯 Detailed Operation

🌟 Step 1: Application Launch

Open the installed sing-box and enter the application homepage:

Application Homepage

💡 First Startup Tip: The app will request VPN permissions, please select "Allow"

⚙️ Step 2: Configuration Options

Tap "Configuration" or "Profiles" to enter configuration management:

Configuration Options

📥 Step 3: Import Configuration

Select import method (URL subscription, local file, or manual configuration):

Import Process

✅ Step 4: Configuration Confirmation

Check imported configuration information and confirm it's correct:

Configuration Confirmation

🌐 Step 5: Node Selection

Select appropriate servers from the available node list:

Node Selection

🚀 Step 6: Start Connection

Return to main interface and start the proxy service:

Connection Status

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🎛️ Advanced Configuration

📊 Routing Rules

🎯 Rule Types

• Domain Rules: Smart traffic splitting based on domain names

• IP Rules: Precise routing based on target IP addresses

• GeoIP Rules: Automatic routing based on geographical location

• Process Rules: Traffic splitting based on application processes (requires root)

📋 Rule Configuration Examples

{
  "route": {
    "rules": [
      {
        "domain_suffix": [".cn", ".com.cn"],
        "outbound": "direct"
      },
      {
        "geoip": ["cn"],
        "outbound": "direct"
      },
      {
        "domain_suffix": [".google.com", ".youtube.com"],
        "outbound": "proxy"
      }
    ],
    "final": "proxy"
  }
}

🔄 Outbound Configuration

🌐 Connection Modes

• Direct Mode: Traffic connects directly to target

• Proxy Mode: Forward through proxy servers

• Block Mode: Block specific traffic

• DNS Mode: DNS queries only

⚙️ Advanced Outbound Settings

{
  "outbounds": [
    {
      "type": "shadowsocks",
      "tag": "proxy",
      "server": "example.com",
      "server_port": 443,
      "method": "chacha20-ietf-poly1305",
      "password": "your_password"
    },
    {
      "type": "direct",
      "tag": "direct"
    },
    {
      "type": "block",
      "tag": "block"
    }
  ]
}

📈 Monitoring & Statistics

📊 Real-time Metrics

• Live Traffic: Display current network speed

• Historical Statistics: View traffic usage history

• Connection Information: Show active connection details

• Log Records: Detailed runtime logs

📈 Performance Tracking

Metric	Description	Update Frequency
🚀 Speed	Current transfer rates	Real-time
📊 Data Usage	Total data consumed	Continuous
🔗 Connections	Active connection count	Real-time
⏱️ Latency	Response time to servers	Periodic

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🎯 Configuration Examples

📝 Basic Configuration

{
  "log": {
    "level": "info"
  },
  "inbounds": [
    {
      "type": "tun",
      "inet4_address": "172.19.0.1/30",
      "inet6_address": "fdfe:dcba:9876::1/126",
      "auto_route": true,
      "strict_route": false
    }
  ],
  "outbounds": [
    {
      "type": "shadowsocks",
      "server": "example.com",
      "server_port": 443,
      "method": "chacha20-ietf-poly1305",
      "password": "your_password"
    },
    {
      "type": "direct",
      "tag": "direct"
    }
  ],
  "route": {
    "rules": [
      {
        "geoip": "cn",
        "outbound": "direct"
      }
    ]
  }
}

🎭 Advanced Multi-Outbound Configuration

{
  "outbounds": [
    {
      "type": "selector",
      "tag": "proxy",
      "outbounds": ["server1", "server2", "server3"]
    },
    {
      "type": "urltest",
      "tag": "auto",
      "outbounds": ["server1", "server2", "server3"],
      "url": "http://www.gstatic.com/generate_204",
      "interval": "10m"
    },
    {
      "type": "shadowsocks",
      "tag": "server1",
      "server": "server1.example.com",
      "server_port": 443,
      "method": "chacha20-ietf-poly1305",
      "password": "password1"
    }
  ]
}

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🔧 Performance Optimization

⚡ Speed Enhancement

🌍 Server Selection Strategy

1. Geographic Proximity: Choose servers closest to your location

2. Load Testing: Use built-in connectivity tests

3. Protocol Optimization: Select appropriate protocols for your network

4. Concurrent Connections: Optimize connection pooling

🛠️ Configuration Tuning

{
  "experimental": {
    "cache_file": {
      "enabled": true,
      "path": "cache.db"
    }
  },
  "route": {
    "auto_detect_interface": true,
    "override_android_vpn": true
  }
}

🛡️ Stability Improvements

• Connection Redundancy: Configure multiple outbound options

• Auto-failover: Enable automatic server switching

• Health Monitoring: Regular connectivity checks

• Backup Configurations: Maintain multiple config profiles

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❓ Frequently Asked Questions

🔧 Technical Issues

Q: Configuration import fails?

A: Please check:

• ✅ Configuration file format is correct

• ✅ Network connection is normal

• ✅ Supported protocols are being used

• ✅ No syntax errors in JSON configuration

Q: Connection unstable?

A: Optimization suggestions:

• 🔄 Try switching to different server nodes

• 🌐 Check local network environment

• ⚙️ Adjust TCP/UDP settings

• 📊 Monitor connection quality

Q: High battery consumption?

A: Energy-saving recommendations:

• 🎯 Configure routing rules properly to reduce unnecessary proxying

• 📍 Choose servers with lower latency

• 🔄 Turn off service when not needed

• 🛡️ Optimize background activity

📱 Application Issues

Q: Unable to start?

A: Troubleshooting steps:

• 📱 Check Android version compatibility

• 💾 Confirm sufficient storage space

• 🔄 Restart device and try again

• 🛠️ Clear app cache and data

Q: VPN permission denied?

A: Solutions:

• ⚙️ Go to Settings → Apps → sing-box → Permissions

• 🔓 Enable VPN permission manually

• 🔄 Restart app after granting permissions

• 📱 Check if other VPN apps are running

⚙️ Configuration Issues

Q: Rules not working properly?

A: Check points:

• 📋 Verify rule syntax is correct

• 🎯 Check rule priority order

• 🔍 Review rule matching in logs

• 🔄 Restart after rule changes

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🔗 Learning Resources

📚 Official Documentation

• 🏠 Project Homepage

• 📖 Official Documentation

• 🎯 Configuration Examples

• 🐛 Issue Reporting

💬 Community Support

• 🔗 Telegram Group

• 📢 Update Channel

• 💭 Discussion Community

• 🌐 Reddit Community

🛠️ Development Resources

• 📋 API Documentation

• 🔧 Plugin Development

• 🎨 UI Components

• 🔗 Integration Examples

🎓 Learning Materials

• 📺 Video Tutorials

• 📝 Blog Articles

• 🔍 Configuration Guide

• 💡 Best Practices

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💡 Best Practices

⚡ Performance Optimization

🎯 Configuration Strategy

1. Reasonable Rule Configuration: Avoid proxying all traffic unnecessarily

2. Choose Nearby Nodes: Select geographically closer servers

3. Regular Updates: Keep app and rules up to date

4. Monitor Performance: Track connection quality and speeds

🔧 Advanced Optimization

{
  "experimental": {
    "clash_api": {
      "external_controller": "127.0.0.1:9090",
      "external_ui": "ui"
    }
  },
  "route": {
    "rule_set": [
      {
        "tag": "geosite-cn",
        "type": "remote",
        "format": "binary",
        "url": "https://cdn.jsdelivr.net/gh/SagerNet/sing-geosite@rule-set/geosite-cn.srs"
      }
    ]
  }
}

🛡️ Security Recommendations

🔐 Configuration Security

1. Verify Configuration Sources: Only use trusted configuration providers

2. Regular Backups: Backup important configuration files

3. Monitor Traffic: Watch for unusual traffic usage patterns

4. Update Regularly: Keep software updated for security patches

🛡️ Privacy Protection

• DNS Security: Use secure DNS providers

• Leak Protection: Enable IPv6 and DNS leak protection

• Log Management: Configure appropriate logging levels

• Certificate Validation: Ensure proper TLS certificate verification

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🎯 Summary & Evaluation

✅ Strengths

• 🆓 Free & Open Source: No cost with transparent development

• 🚀 High Performance: Efficient Go-based architecture

• 🌍 Cross-Platform: Consistent experience across devices

• 🔧 Rich Features: Comprehensive routing and configuration options

• 🔄 Active Development: Regular updates and community support

❌ Considerations

• 📚 Learning Curve: Complex configuration may overwhelm beginners

• 🔄 Rapid Development: Frequent updates may introduce breaking changes

• 🛠️ Configuration Complexity: JSON-based configuration requires technical knowledge

• 📱 Resource Usage: May consume more resources than simpler alternatives

🎯 Ideal For

• 🔧 Technical Users: Those comfortable with JSON configuration

• 🆓 Budget-Conscious: Users seeking powerful free alternatives

• 🎓 Learning Enthusiasts: Those interested in modern proxy technologies

• 🌐 Cross-Platform: Users needing consistent experience across devices

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📅 Last Updated: August 31, 2025 | 📦 Compatible Version: sing-box 1.12.4 (SFA)