Alternatives · 2026

Nessus Alternatives

7 security auditing tools that compete with Nessus, ranked by community rating. Side-by-side comparisons included for every pick.

  1. 1
    N

    Nmap

    Free

    Network discovery and security auditing tool.

    4.8 (79)

    Network discovery and security auditing tool.

  2. 2
    B

    Burp Suite

    From €0/mo

    Web application security testing platform.

    4.6 (259)

    Web application security testing platform.

  3. 3
    M

    Metasploit

    From €0/mo

    Penetration testing framework.

    4.5 (300)

    Penetration testing framework.

  4. 4
    G

    Grimoire (Snyk)

    From €0/mo

    Developer-first security scanning for code, dependencies, and containers.

    4.4 (424)

    Developer-first security scanning for code, dependencies, and containers.

  5. 5
    Q

    Qualys

    From €0/mo

    Cloud-based vulnerability management and compliance.

    4.4 (162)

    Cloud-based vulnerability management and compliance.

  6. 6
    O

    Full-featured open-source vulnerability scanner.

    4.3 (236)

    Full-featured open-source vulnerability scanner.

  7. 7
    P

    Online pentest-/securityscanner

    3.0 (207)

    Online pentest-/securityscanner

Why compare Nessus with these tools?

Every tool on this page shares Nessus's core security auditing use case, so switching is usually straightforward. Click any “Nessusvs X” link to see pricing, feature, and rating differences side-by-side.

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