Earlier this year, we removed the OpenGFW repository from GitHub. This decision was made primarily because we discovered that Geedge Networks, a company with close ties to the Chinese government that sells censorship solutions to governments around the world, was plagiarizing OpenGFW's code and incorporating it into its products. OpenGFW was created for purposes such as network research, ad blocking, and parental controls. It was never intended to enable or assist state censorship. Seeing the project used in this way was fundamentally at odds with why we built and released it. After further internal discussion and requests from the community, we have decided to make the repository publicly available again for the benefit of the broader community. For now, we do not plan to actively continue developing OpenGFW ourselves. Instead, we intend to focus more of our efforts on Hysteria and other upcoming anti-censorship projects. However, if members of the community would like to continue developing OpenGFW, they are more than welcome to do so. We will keep the repository available, accept pull requests, and publish new releases as appropriate. Thank you to everyone in the community who has supported our projects and shared their feedback with us.

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OpenGFW is your very own DIY Great Firewall of China (https://en.wikipedia.org/wiki/Great_Firewall), available as a flexible, easy-to-use open source program on Linux. Why let the powers that be have all the fun? It's time to give power to the people and democratize censorship. Bring the thrill of cyber-sovereignty right into your home router and start filtering like a pro - you too can play Big Brother.

• Full IP/TCP reassembly, various protocol analyzers
  • HTTP, TLS, QUIC, DNS, SSH, SOCKS4/5, WireGuard, OpenVPN, and many more to come
  • "Fully encrypted traffic" detection for Shadowsocks, VMess, etc. (https://gfw.report/publications/usenixsecurity23/en/)
  • Trojan (proxy protocol) detection
  • [WIP] Machine learning based traffic classification
• Full IPv4 and IPv6 support
• Flow-based multicore load balancing
• Connection offloading
• Powerful rule engine based on expr
• Hot-reloadable rules (send SIGHUP to reload)
• Flexible analyzer & modifier framework
• Extensible IO implementation (only NFQueue for now)
• [WIP] Web UI

• Ad blocking
• Parental control
• Malware protection
• Abuse prevention for VPN/proxy services
• Traffic analysis (log only mode)
• Help you fulfill your dictatorial ambitions