UAC SNI Spoofer

An open-source tool for managing secure connections on Android. The app utilizes the native Android VpnService/TUN interface and the Xray core; it is designed for rapid connectivity, configuration management, and real-time network status monitoring.

Features:

• System-wide Android tunneling using Android VpnService, the Xray core, and a native TUN interface.

• Support for VLESS, VMess, and Trojan configurations, preserving key specifications such as transport, security, SNI, Host, Path, ALPN, and Fingerprint.

• Adaptive Connectivity: Generates unique fingerprints for each network based on connection type, carrier, ASN, and service provider; subsequently sorts routes, learns from successful outcomes, and accelerates future connections.

• Utilization of primary and alternative Edge sets tailored to the network, including a "Direct Compatibility" path for testing configurations without altering addresses, changing ALPN, or applying FinalMask.

• Automatic connection recovery during network switches or quality drops, leveraging stored successful connections, backup routes, and cooldown periods for failed routes.

• Route Speed ​​Test: Comprehensive analysis of Edge × DNS × Fragment × MTU combinations, testing hundreds of independent routes for each configuration and network.

• Multi-stage route competition: Ranging from initial screening to stability and stress tests, culminating in a final A-B-B-A comparison. Xray cold start; multi-target HTTP testing; DNS response, data volume, speed, ping, jitter, success rate, and confidence metrics.

• Live ranking of best routes; pause/resume testing without losing results; manual step-through; saving the final list specific to the configuration and network fingerprint.

• Selecting a primary route and a backup route; saving them for the specific configuration and network for immediate use in future connections.

• Multiple independent DNS resolvers (Cloudflare, Google, Quad9, AdGuard, OpenDNS) supporting DoH and bootstrap addresses.

• Config Maker: Quick Scan and Deep Adaptive Test methods for evaluating configurations; displays the route currently being tested and stops at the first valid result.

• Import configurations via text, clipboard, file, or subscription link; merge multiple subscriptions without losing previous results; automatic duplicate removal.

• Three app routing modes: route all apps through VPN, bypass tunnel for selected apps, or route only selected apps through VPN.

• Tunnel and local SOCKS proxy connection modes; includes controls for Fragment, FinalMask, MTU, Mux, Keepalive, QUIC, and routing.

• Live monitoring of ping, traffic, country/exit address, and connection health; technical logs for troubleshooting.

• Quick VPN connect/disconnect via Android Quick Settings panel and notification controls.

Requirements:

- Android 7 or later - Granting standard VPN permission upon first connection - Other VPN apps must be disabled during use