Resources
Everything we build is open source: fork it, break it, send a pull request. Below that, the free platforms we actually recommend for learning.
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Built by us
ctf-writeups
Every challenge we've solved in competition, written up with the full path, including the dead ends. Our most-starred repo.
brunel-ctf-platformThe challenge platform we run our internal beginner CTFs on. Self-hostable, with a dozen original challenges included.
workshop-labsThe vulnerable-by-design lab environments from our weekly workshops, as Docker images. Practise legally, locally.
brunel-siteThis website. Plain HTML, CSS and a canvas animation, no framework. A decent first issue if you've never contributed to open source.
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