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    The Spanner
    Web security blog

    Made by Gareth Heyes
    Follow me on Twitter: @garethheyes

    Javascript for hackers!

    Hackvertor logo
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    Open source security tools

    By Gareth Heyes (@hackvertor)

    Published 18 years 8 months ago • Last updated March 22, 2025 • ⏱️ 2 min read

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    I have reached the required comment level for my JSFuzzer, if you weren't aware of my experiment it was simply to have people comment on my post before I released the source code [1]. I know it might sound silly but in fact it enables the project to attract attention and also humans by their very nature want something they can't have :)

    You see I don't want to charge people for the tools I write because I think they should be freely available as a learning resource and there's a couple of things I don't like about software/code in the industry today:-

    1. Licenses suck.
    2. Patents suck.
    3. Corporate interests suck.
    4. Stealing code or reselling free code sucks big time.

    I'll not turn this post into a rant and I could name far more points but what I wanted to achieve with this post is provide an example to the rest of the web security industry on how things can be done and hopefully someone will learn from the code I've wrote or better still find problems or improve it.

    I've released the source of two security tools.

    1. JSFuzzer
    2. Javascript LAN Scanner

    You can get involved with both projects on Google groups here:- JS Fuzzer group and Javascript LAN scanner group

    [1] open source as a reward for the js fuzzer

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