Top Free & Open Source Cybersecurity Tools

Although there is a proliferation of Free & Open Source Software (FOSS) tools for Cybersecurity, many of them are mediocre or worse in terms of their functionality, reliability, and usability. The Cybersecurity FOSS tools listed below are distinguished by their quality and popularity, and are organized according to major cybersecurity functions (penetration testing, digital forensics, network protocol analysis, etc.).

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Top Cybersecurity Tools & Tool Suites

  1. Best Penetration Testing Tool Suite
    Editor Rating: 3.7 / 5
    MSF Server/Client:
    Armitage Client:

  2. Best Network Protocol Analyzer (“Packet Sniffer”)
    Editor Rating: 3.8 / 5

  3. Best Web Application Testing Tool Suite
  4. Best Web App Security Reconnaissance (“Fuzzer”)
    Editor Rating: 4 / 5

  5. Best Login Password Cracker
  6. Best WEP / WPA Password Cracker:
    Editor Rating: 3.5 / 5 Stars

  7. Best SQL Injection / Database Takeover Tool
    Editor Rating: 3.5 / 5 Stars

  8. Best Forensic Image & File Processing Tool Suite
    Editor Rating: 3.5 / 5 Stars

  9. Best Forensic Image Processing Tool
    Editor Rating: 3.5 / 5 Stars

  10. Best Network Scanning Utility
    Editor Rating: 3.5 / 5 Stars

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