Nessus AlternativesOnly apps categorised as Vulnerability Scanners

The best Vulnerability Scanner alternative to Nessus is SiteOne Crawler, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to Nessus and many of them are Vulnerability Scanners so hopefully you can find a suitable replacement. Other interesting Vulnerability Scanner alternatives to Nessus are Metasploit, OpenVAS, PhoneSploit Pro and CVEFinder.

filter to find the best alternatives

Nessus alternatives are mainly Vulnerability Scanners, but if you're looking for Penetration Testing Tools or SEO Tools you can filter on that. Other popular filters include Open Source and Free. You can also filter by region, for example EU-based alternatives if you prefer software developed in the European Union. These are just examples - use the filter bar below to find more specific alternatives to Nessus.
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Alternatives list

  1. SiteOne Crawler icon
     21 likes

    A free in-depth website analyzer providing audits of security, performance, SEO, accessibility and other technical aspects. Available as a desktop application for Windows/macOS/Linux and as a CLI tool for advanced users and CI/CD processes. It also includes an offline web page exporter.

    Cost / License

    • Free
    • Open Source (MIT)

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
     
  2. Metasploit icon
     46 likes

    Metasploit Community Edition simplifies network discovery and vulnerability verification for specific exploits, increasing the effectiveness of vulnerability scanners such as Nexpose - for free. This helps prioritize remediation and eliminate false positives, providing true...

    22 Metasploit alternatives

    Cost / License

    • Free Personal
    • Open Source

    Platforms

    • Windows
    • Linux
    • BSD
     
  3. OpenVAS icon
     24 likes

    The Open Vulnerability Assessment System (OpenVAS) is a framework of several services and tools offering a comprehensive and powerful vulnerability scanning and vulnerability management solution.

    31 OpenVAS alternatives

    Cost / License

    • Freemium
    • Open Source

    Application type

    Platforms

    • Linux
     
  4. CVEFinder icon
     Like

    CVEFinder is a freemium web-based security tool that scans websites to detect technologies and identify known CVE vulnerabilities affecting them. Allows to see public exploits for the CVEs, monitor websites weekly, export affected CVEs and more.

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Platforms

    • Online
     
  5. Retestme icon
     Like

    A cybersecurity service that provides hybrid penetration testing by combining AI automation with manual human expertise. Their core promise is "Zero False Positives," aiming to offer validated security intelligence rather than just automated scan results.

    Cost / License

    • Paid
    • Proprietary

    Platforms

    • Online
     
  6. Intruder icon
     11 likes

    Intruder is a security monitoring platform for internet-facing systems.

    Intruder provides an easy to use security solution which continually scans your digital assets, highlighting vulnerabilities and outlining remediation advice in simple terms.

    Cost / License

    • Paid
    • Proprietary

    Platforms

    • Online
     
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    1
    Intruder vs Nessus Comments
    Guest
    Positive
    0

    Perimeter focussed, easy to use, manages process for new vulnerabilities for you.

    Review by a new / low-activity user.
    • Intruder is Paid and ProprietaryNessus is also Paid and Proprietary
  7. OpenSCAP icon
     4 likes

    SCAP is a line of standards managed by NIST. It was created to provide a standardized approach to maintaining the security of enterprise systems, such as automatically verifying the presence of patches, checking system security configuration settings, and examining systems for...

    15 OpenSCAP alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Linux
     
  8. Acunetix icon
     14 likes

    Audit your website security and web applications for SQL injection, Cross site scripting and other web vulnerabilities with Acunetix Web Security Scanner. Download Free Edition!

    64 Acunetix alternatives

    Cost / License

    • Paid
    • Proprietary

    Application type

    Platforms

    • Windows
    • Online
    • Wordpress
     
  9. nuclei icon
     2 likes

    Nuclei is used to send requests across targets based on a template, leading to zero false positives and providing fast scanning on a large number of hosts. Nuclei offers scanning for a variety of protocols, including TCP, DNS, HTTP, SSL, File, Whois, Websocket, Headless etc.

    24 nuclei alternatives

    Cost / License

    • Free
    • Open Source (MIT)

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
     
  10. Whitespots icon
     3 likes

    📈 Measure and control your application security state; 🔎 Scan your code, containers, web and mobile applications; 🔥 Remove duplicates, validate results, and create Jira tasks in seconds; 🕜 Save your engineers time and automate your processes; ? Self-hosted.

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Platforms

    • Self-Hosted
     
  11. Probely icon
     16 likes

    Probely is a top-tier cloud-based DAST Scanner designed for DevOps, empowering Security and Development teams to work together to secure their web applications and APIs.

    Cost / License

    • Freemium
    • Proprietary

    Platforms

    • Online
     
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