Fancyss is a “scientific Internet access / bypassing censorship” toolkit targeted principally to Asus routers running AsusWRT or Merlin-based firmware. The project provides a plugin suite (with “software center” integration) so that home routers can run proxy or tunneling tools (e.g. V2Ray) to circumvent firewall or censorship (“GFW” in the Chinese context). Because it integrates into the router’s firmware environment, fancyss automates configuration, routing, and firewall rules to minimize manual tinkering. It supports multiple architectures and firmware versions, though some submodules or variants (e.g. “fancyss_hnd”) are optimized for specific chipsets. The project also maintains offline packages for constrained environments and hardware support lists. Many users adopt fancyss to turn relatively cheap consumer routers into censorship-resilient gateways, avoiding separate proxy appliances.

Features

  • Multi-client protocol support: Shadowsocks, ShadowsocksR, V2ray, Xray, Trojan, NaïveProxy, TuicV5, Hysteria2 etc.
  • Multiple operational modes: GFW list mode, Mainland white-list mode, Game mode, Global mode, Back-to-home (“回国”) mode
  • DNS options: includes built-in DNS schemes, custom DNS scheme configuration by user
  • Node subscription support and ability to generate QR codes for sharing nodes etc.
  • Fault-tolerance / load balancing: failover, backup switching, timed restarts, timed rule updates, binary updates etc.
  • Support for traffic acceleration tools / protocols and plugins: e.g. kcptun, udpspeeder, udp2raw to improve latency, loss tolerance etc.

Project Samples

Project Activity

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Categories

Router

License

GNU General Public License version 3.0 (GPLv3)

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Additional Project Details

Operating Systems

Linux, Mac, Windows

Programming Language

JavaScript

Related Categories

JavaScript Router Firmware

Registered

2025-09-19