Book of Secret Knowledge
by Hersa
Offline browser for 1,657 security tools and resources
About
The Book of Secret Knowledge is a searchable offline reference for security professionals, penetration testers, sysadmins, and developers. Curated by Hersa, a cyber intelligence analyst, it provides instant access to 1,657 tools and resources across 12 categories. Features include: - 1,657 tools with full README documentation embedded offline - Instant search across names, descriptions, and categories - Coverage of CLI tools, pentesting, OSINT, AI security, cryptography, networking, and more - Per-tool notes saved locally - Bookmarks for quick access to favourite tools - Live RSS feeds from top security blogs and channels
Permissions
Everything this app can reach outside its sandbox. Nothing here weakens it.
- inter-process communication (needed for X11)
--share=ipc - network
--share=network - X11 display, only when Wayland is unavailable
--socket=fallback-x11 - Wayland display
--socket=wayland - GPU acceleration
--device=dri - notifications
--talk-name=org.freedesktop.Notifications
Who publishes this
The creator demonstrably controls this app id: Flathub verification, the hosting account owns the namespace, or a well-known file on their domain.
- hosted by github.com/hersaintel, which owns the io.github namespace of io.github.hersaintel.secretknowledge
publisher:namespace
Maintenance
Recent activity on the upstream repository, or built and reviewed by Flathub.
No staleness signals: recent activity, or built and reviewed by Flathub.