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Git vs Tenable Nessus

Git logo

Git

Developer Tools

A free and open source distributed version control system

From
Free
Free plan
Yes
Full reviewWebsite
Tenable Nessus logo

Tenable Nessus

Cybersecurity

Network vulnerability scanner

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • Each has a real cost: Git licensed under GNU GPL version 2.0 as stated on git-scm.com/about; as open source software it has no paid tier or vendor price to compare; Tenable Nessus nessus Professional is $4,790 for one year, sold as an annual licence rather than a per scan or usage based fee
  • Prices and features above were last checked on 30 August 2026.

Where they differ

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

Attributes where Git and Tenable Nessus differ
AttributeGitTenable Nessus
Pricing modelopen-sourcesubscription
PlatformsWebWindows, Linux, Macos, Cloud
CategoryDeveloper ToolsCybersecurity
FoundedUnknown2002

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

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 Git

Nothing recorded that Tenable Nessus does not also cover.

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.

Git

  • Maintaining complete code history for large projectsnot Tenable Nessus
  • Coordinating open source development globallynot Tenable Nessus
  • Enabling offline work with full repository historynot Tenable Nessus
  • Integrating with CI/CD and hosting servicesnot Tenable Nessus

Tenable Nessus

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

Where each one falls short

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

Git

  • Licensed under GNU GPL version 2.0 as stated on git-scm.com/about; as open source software it has no paid tier or vendor price to compare
  • Git is a command line tool by design; graphical workflows and hosted collaboration depend entirely on third party GUIs and hosting services layered on top, per git-scm.com/about

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

Git

Free

No published plan breakdown. See the Git review.

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 Git if

  • You want to start without paying.
Git 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 Git or Tenable Nessus better?
Neither clearly leads. Git 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, Git or Tenable Nessus?
Git starts at Free and Tenable Nessus at Free.
Does Git or Tenable Nessus run on more platforms?
Git runs on Web. Tenable Nessus runs on Windows, Linux, Macos, Cloud.
Can I use Git for free?
Both have a free tier, so you can try either at no cost before committing.
What is Git best used for?
Git is most often used for maintaining complete code history for large projects, coordinating open source development globally, enabling offline work with full repository history, integrating with ci/cd and hosting services. Of those, maintaining complete code history for large projects and coordinating open source development globally are not what Tenable Nessus is typically brought in for.
What can Git do that Tenable Nessus cannot?
Tenable Nessus covers Network scanning, Vulnerability detection, Configuration assessment, Malware detection.

Answered from the vendors’ own pages

Git: How much does Git cost?

Git is completely free and open-source software released under the GNU General Public License version 2.0 (GPLv2). There are no licensing costs for the core Git project.

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
Git: Can Git be used for commercial purposes?

Yes, Git can be freely used for commercial and non-commercial projects. The GPLv2 license guarantees freedom to use, modify, and distribute the software.

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
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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