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Switchblade is a tool used to conduct load testing on a web application running IIS or Apache sponsored by ProactiveRISK


The OWASP Testing Guide v3 (Section 4.9) Denial of Service Testing outlines numerous areas of Denial of Service. This QA tool was created to allow you to test your web applications to test availability concerns from Layer7 DoS HTTP GET and HTTP POST denial of service attacks and SSL half connects


This tool is used to test production load of systems to reach capacity.

It should NOT be used from a coffee shop to cause denial of service conditions to websites that you do not own.


Switchblade is free to use. It is licensed under the http://creativecommons.org/licenses/by-sa/3.0/ Creative Commons Attribution-ShareAlike 3.0 license], so you can copy, distribute and transmit the work, and you can adapt it, and use it commercially, but all provided that you attribute the work and if you alter, transform, or build upon this work, you may distribute the resulting work only under the same or similar license to this one.

What Switchblade V4.x

Switchblade provides QA testing for Layer7 Denial of Service

  • SSL Half Connect
  • HTTP Slow Post
  • HTTP Slowloris


Project Leader

Tom Brennan

Related Projects


Quick Download

Email List


21-Aug-2014 Version 4.0 Released


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Project Type Files CODE.jpg

Q1 Can I get in trouble for using this tool against a website I am not authorized to test?
A1 Yes. Don't create problems, create solutions.
Q2 Can I use this tool to test for free?
A2 The tool is released open-source to the community.


Switchblade is developed by ProactiveRISK team. The primary contributors to date have been:

  • Tom Brennan
  • Sam Jensen
  • Ryan Barnett

Involvement in the development and promotion of the Switchblade is actively encouraged! You do not have to be a security expert in order to contribute. Some of the ways you can help:

  • Demonstrate the tools ability to effect availability of any system using SSL, HTTP Post etc.

What does this OWASP project offer you?
What releases are available for this project?
what is this project?
Name: OWASP HTTP Post Tool (home page)
Purpose: A tool for the purpose of performing web application security assessment around the availability concerns.
License: GPLv3
who is working on this project?
Project Leader(s):
how can you learn more?
Project Pamphlet: Not Yet Created
Project Presentation: View
Mailing list: Mailing List Archives
Project Roadmap: View
Key Contacts
  • Contact the GPC to report a problem or concern about this project or to update information.
current release
HttpDosTool3 - 26 November 2006 - (download)
Release description: A tool for load testing HTTP Denial of Service from POST.
Rating: Yellow button.JPG Not Reviewed - Assessment Details
last reviewed release
Not Yet Reviewed

other releases