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Reviews onG2Capterra
380 reviews tracked

The Bottom Line

Entry price

Paid plans only

Biggest pro

Industry standard scanner

Biggest con

Expensive

TL;DR - Nessus

  • Nessus is a vulnerability scanner for identifying security issues
  • It scans networks and systems for vulnerabilities, misconfigurations, and malware
  • Nessus Essentials free for 16 IPs, Pro at $3,990/year
Pricing: Paid only
Best for: Enterprises & pros
4.6/5 across review platforms

What is Nessus?

Editorial review
Nessus scans for vulnerabilities across networks and systems. The scanner security professionals have used for decades-vulnerability assessment that's proven. The scanning is comprehensive. The database is current. The trust is established. Security teams doing vulnerability assessment use Nessus for proven scanning.

Available on: Web

Pros & Cons

Pros

  • Industry standard scanner
  • Good vulnerability detection
  • Comprehensive coverage
  • Good reporting
  • Active development

Cons

  • Expensive
  • Learning curve
  • Resource intensive
  • Per-asset pricing
  • Better alternatives exist

Ratings Across the Web

4.6(380 reviews)

Ratings aggregated from independent review platforms. Learn more

Key Features

Vulnerability scannerCompliance checksConfiguration auditMalware detectionReportsEnterprise

Pricing Plans

Free Trial

Essentials (Free)

Free

  • Up to 16 IP addresses
  • Same scanning engine
  • Plugin updates
  • Community support

Professional

$2,990/year

  • Unlimited assessments
  • Standard support
  • All vulnerability checks
  • Compliance auditing

Expert

$5,890/year

  • External attack surface scanning
  • Domain monitoring
  • IaC scanning
  • Cloud scanning

How Nessus's pricing compares

At $249.17/mo, Nessus is the most premium of its 2 direct competitors.

$0.46
Nessus
$249.17

Entry paid plan, monthly.

Reviews

4.6/5

Across 380 verified user reviews on G2, Capterra

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Best Nessus Alternatives

Top alternatives based on features, pricing, and user needs.

View full list →

Most buyers shortlist 2 or 3 tools before committing. Pull a side-by-side comparison or browse the full alternatives shortlist below.

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Nessus FAQ

Is Nessus free?

Nessus Essentials is free for up to 16 IPs. Nessus Professional for unlimited scanning starts at $2,790/year.

What is Nessus?

Nessus is a vulnerability scanner from Tenable. It finds security issues in your network, systems, and applications with comprehensive compliance checking.

Nessus vs Qualys?

Both are enterprise vulnerability scanners. Nessus is often deployed on-premises while Qualys is cloud-native. Compare their specific detection capabilities and deployment models.

Source: tenable.com

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