ISB (I'm so bored) is a network stress-testing application for Windows
Your Personal Hacking Terminal.
DDOS tool
PGIIXUA allows to generate network traffic right of your Android
A Proffesional Stress-Testing(ddos) tool for pentesters
NetStress is a DDoS and network stress testing tool.
A simple TCP/UDP Port Flooder written in Python.
A simple script for distributed computing through PHP: