Free Web Application Firewall
Linset Is Not a Social Enginering Tool
Simple web protection against botnet attack
anonymous tools [uncontinued]
Open Source API-centric PHP Micro-framework
A web interface enumeration tool for simplifying red team reporting.
Detect Flooder IPs, Reduce Attack Surface against HTTP Flood Attacks
BlackBSD
A simple script for distributed computing through PHP:
Built free and powerfull web application with ExtJS and PHP