DDos Ripper a Distributable Denied-of-Service (DDOS) attack server that cuts off targets or surrounding infrastructure in a flood of Internet traffic

A no-nonsense CAPTCHA system with seamless UX | Backend component

The BGP swiss army knife of networking

GDPR, WCAG 2.2 AA, and EAA compliant, self-hosted CAPTCHA alternative with PoW mechanism.

The first open-source DDoS protection system

Web Application Firewall (WAF) for PHP.

Protect your website from bots with Prosopo Procaptcha

A firewall that utilizes the Linux kernel's XDP hook. The XDP hook allows for very fast network processing on Linux systems. This is great for dropping malicious traffic from a (D)DoS attack. IPv6 is supported with this firewall! I hope this helps network engineers/programmers interested in utilizing XDP!

Web application acceleration, advanced DDoS protection and web security

堡塔云WAF，宝塔免费(free)的私有云网站应用防火墙(firewall)，基于docker/nginx/lua开发

Welcome to vDDoS, a HTTP(S) DDoS Protection Reverse Proxy. Thank you for using!

Project dedicated to fight Layer 7 DDoS with proof of work, with an additional WAF and controller. Completed with full set of features and containerized for rapid and lightweight deployment.

USED BY IP STRESSER & IP BOOTER TOOLS, TCP DOMINATE FLOOD UPDATED IN 2025 BY AI SAME ONE USED IN https://elitestresser.club

Lightweight http anti-ddos reverse-proxy made in golang

packet captures of real-world ddos attacks

The Spigot, Bungee and Velocity plugin that parses client IP addresses passed from the TCPShield network.

Easy to use DDoS mitigation with real-time traffic analysis, automatic attack pattern detection, IP blocking via iptables/blackhole routing, and Discord alerts. Detects and mitigates network floods, reflection attacks, and protocol abuse.

Cap backend server build on Cloudflare worker, modern open-source CAPTCHA alternative using SHA-256 proof-of-work.

Simple script against most network threats.

Anti-DDoS-Lite (Anti-Crawler app) is a small PHP app to protect your site against DDoS attack.