BlackArch Linux

BlackArch is distributed as an installable ISO but is equally usable as an add-on repository layered onto an existing Arch Linux install, giving Arch users access to its enormous security-tool catalog without switching distributions entirely. Its tool count dwarfs Kali's and Parrot's by a wide margin, organized into dozens of categories (exploitation, forensics, wireless, cracking, and more), reflecting Arch's own philosophy of making the widest possible software selection available rather than a curated subset. It assumes Arch-level user comfort with a rolling-release, DIY-configured system, making it a better fit for experienced Arch users specializing in security work than for security beginners.