OWASP SwitchBlade

OWASP SwitchBlade File Download

Free Open Source Program Download

OWASP SwitchBlade is an open source program that allows you to perform Denial of Service attacks on web applications.
If you are a web app developer, then it is a great tool for you, you can use it to test the stability of your web applications against HTTP Post, Slowloris, and SSL renegotiation attacks