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Cybersecurity · head to head

Metasploit vs Tenable Nessus

Metasploit logo

Metasploit

Cybersecurity

The world's most used penetration testing framework

From
Free
Rated
-
Full reviewWebsite
Tenable Nessus logo

Tenable Nessus

Cybersecurity

Network vulnerability scanner

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Metasploit the free Framework edition is command line only; the web interface is Pro only; Tenable Nessus nessus Professional is $4,790 for one year, sold as an annual licence rather than a per scan or usage based fee
  • They diverge on capability: Metasploit covers Exploit database, Tenable Nessus covers Network scanning.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Metasploit and Tenable Nessus actually diverge.

Attributes where Metasploit and Tenable Nessus differ
AttributeMetasploitTenable Nessus
Pricing modelfreemiumsubscription
PlatformsDesktop, CliWindows, Linux, Macos, Cloud
Founded20002002

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Cybersecurity).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Metasploit

  • Exploit database
  • Payload generation
  • Post-exploitation
  • Evasion modules
  • Auxiliary scanners
  • Social engineering
  • Credential harvesting
  • Session management

Only in Tenable Nessus

  • Network scanning
  • Vulnerability detection
  • Configuration assessment
  • Malware detection
  • Compliance checking
  • Cloud security assessment
  • Mobile scanning
  • API access

What people use each for

The jobs each tool is most often brought in to do.

Metasploit

  • Penetration testing and exploit development against known vulnerabilitiesnot Tenable Nessus
  • Validating whether a reported vulnerability is actually exploitablenot Tenable Nessus
  • Running phishing and credential attack simulations on the Pro editionnot Tenable Nessus

Tenable Nessus

  • Vulnerability scanning of servers, network devices and web applicationsnot Metasploit
  • Configuration and compliance auditing against hardening benchmarksnot Metasploit
  • Point in time assessments by consultants and penetration testersnot Metasploit

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Metasploit

  • The free Framework edition is command line only; the web interface is Pro only
  • Automated exploitation, automated credential attacks and antivirus evading dynamic payloads are restricted to Metasploit Pro
  • Reporting, audit wizards, task chains and closed loop vulnerability validation are Pro only
  • Rapid7 publishes no price for Metasploit Pro and routes buyers to contact sales

Tenable Nessus

  • Nessus Professional is $4,790 for one year, sold as an annual licence rather than a per scan or usage based fee
  • Support beyond the base entitlement costs an extra $400 per year for Advanced Support with 24x365 phone and chat access
  • The on demand training course is a separate $275 purchase for a single person for one year
  • Multi year discounts require paying for two or three years up front

Pricing, plan by plan

Metasploit

Free
  • Metasploit Framework (OSS)Free
    • Open source
    • 1500+ exploits
    • Command line
  • Metasploit ProFree
    • Web interface
    • Automated testing
    • Phishing campaigns

Tenable Nessus

Free
  • Nessus EssentialsFree
    • Up to 16 ips
    • Network scanning
    • Vulnerability assessment
  • Nessus Professional$2600/year
    • Unlimited targets
    • Enterprise features
    • Advanced analytics
  • Nessus Expert$5200/year
    • All Professional features
    • Cloud integration
    • Advanced reporting

Which should you pick?

Choose Metasploit if

  • You need exploit database.
  • You want to start without paying.
  • You work on Desktop, Cli.
  • You also want payload generation.
Metasploit review

Choose Tenable Nessus if

  • You need network scanning.
  • You want to start without paying.
  • You work on Windows, Linux, Macos, Cloud.
  • You also want vulnerability detection.
Tenable Nessus review

Questions people ask

Is Metasploit or Tenable Nessus better?
Neither clearly leads. Metasploit starts at Free and Tenable Nessus at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Metasploit or Tenable Nessus?
Metasploit starts at Free and Tenable Nessus at Free.
Does Metasploit or Tenable Nessus run on more platforms?
Metasploit runs on Desktop, Cli. Tenable Nessus runs on Windows, Linux, Macos, Cloud.
Can I use Metasploit for free?
Both have a free tier, so you can try either at no cost before committing.
What is Metasploit best used for?
Metasploit is most often used for penetration testing and exploit development against known vulnerabilities, validating whether a reported vulnerability is actually exploitable, running phishing and credential attack simulations on the pro edition. Of those, penetration testing and exploit development against known vulnerabilities and validating whether a reported vulnerability is actually exploitable are not what Tenable Nessus is typically brought in for.
What can Metasploit do that Tenable Nessus cannot?
Metasploit covers Exploit database, Payload generation, Post-exploitation, Evasion modules. Tenable Nessus covers Network scanning, Vulnerability detection, Configuration assessment, Malware detection.

Answered from the vendors’ own pages

Metasploit: Is Metasploit Framework free to use?

Yes, Metasploit Framework is available as free open-source software with source code accessible via GitHub. Community support is provided through Slack, GitHub, Twitter, and email.

Source
Tenable Nessus: What are the three Nessus offerings?

Nessus Essentials is a free introductory offering for educators, students, and career starters, limited to 16 IPs for scanning. Nessus Professional is designed for consultants and SMBs, providing unlimited IT scans across any location. Nessus Expert is the premium offering extending Professional with web application scanning, infrastructure-as-code scanning, and external attack surface assessment up to 5 domains.

Source
Metasploit: What is the difference between Metasploit Framework and Metasploit Pro?

Metasploit Framework is the free open-source version. Metasploit Pro is a commercial offering with customer support from Rapid7, though specific pricing and features are not detailed on the download page.

Source
Tenable Nessus: What OS platforms does Nessus support?

Nessus runs on Debian/Kali Linux, Fedora, FreeBSD, Mac OS X, Red Hat/CentOS, SUSE Linux, Ubuntu, and various Windows versions including Server 2008, 2012, and Windows 7-10.

Source
Metasploit: What support is available for the free Framework version?

Community-based support for Metasploit Framework is available through Slack, GitHub, Twitter, and email ([email protected]). Commercial customers using Metasploit Pro receive customer support from Rapid7.

Source
Tenable Nessus: Can I use Nessus to scan third-party networks as a consultant?

Yes, Tenable permits you to use Nessus to scan third-party networks. Nessus Professional is ideal for consultants.

Source
Tenable Nessus: Can Nessus perform PCI external scanning?

Yes, you can use Nessus Professional to perform external network scans as required by the PCI DSS 11.2.2 requirement.

Source
Tenable Nessus: What additional features does Nessus Expert provide?

Web application scanning, which is dynamic application security testing (DAST) providing comprehensive visibility and insight into web application security issues; scanning code repositories for vulnerabilities; and assessing external attack surface with subdomain discovery.

Source
Tenable Nessus: What support options exist for Nessus Professional?

Standard Support includes software upgrades, patches, plugin access, and 24x7 support via chat and community portal. Advanced Support adds 24x7 phone access and committed SLAs: P1 less than 2 hours, P2 less than 4 hours, P3 less than 12 hours, P4 less than 24 hours.

Source
Tenable Nessus: How frequently are Nessus plugins updated?

Nessus plugins are updated daily, based on when vendors and security research sites publish new vulnerabilities.

Source
Tenable Nessus: How does licensing work in virtual machine environments?

Whether you are using Nessus in a physical or a virtual environment, the IP addresses or hosts that you are scanning from must be licensed.

Source
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