Websecurify is a web and web2.0 security initiative specializing in researching security issues and building the next generation of tools to defeat and protect web technologies.

Key Features

1. JavaScript – Websecurify Security Testing Framework is the first tool of its kind to be written entirely in JavaScript using only standard technologies adopted by the leading browsers.
2. Multiple Environments – The core technology can run in normal browsers, xulrunner, xpcshell (command line), inside Java or as part of a custom V8 (Chrome’s JavaScript Engine) build. The core is written with extensibility in mind so that more environments can be supported without changing even a single line of code.
3. Multi-platform – The tool is available and successfully runs on Windows, Mac OS, Linux and other operating systems.
4. Automatic Updates – Every single piece of the tool is subjected to automatic updates. This means that newer and more advanced versions of the tool can be shipped to your front door without you lifting your finger. This however is completely optional. The automatic update can be turned off if needed.
5. Extensions – Because the tool comes wrapped in xulrunner by default (keep in mind that we can support any other JavaScript environment) we benefit from all cool features that Firefox has, such as extensions. Extensions are easy to write and maintain and can customize every single aspect of the tool and there are already tones of resources and documentation, including books and what not, out there to teach you exactly how to do that. We will be providing documentation as well.

You can download Websecurify 0.3 here:

Windows – Websecurify 0.3.exe
Linux – Websecurify 0.3.tgz
Mac – Websecurify 0.3.dmg

Or read more here.