# Nessus Professional vs SecurityVulnerability.io: side-by-side comparison (2026)

[Nessus Professional](https://cybersectools.com/tools/nessus-professional) is a commercial [vulnerability assessment](https://cybersectools.com/categories/vulnerability-assessment) solution by [Tenable](https://cybersectools.com/companies/tenable). [SecurityVulnerability.io](https://cybersectools.com/tools/securityvulnerabilityio) is a free [vulnerability assessment](https://cybersectools.com/categories/vulnerability-assessment) solution. Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | Nessus Professional | SecurityVulnerability.io |
|---|---|---|
| Pricing model | Commercial | Free |
| Category | Vulnerability Assessment | Vulnerability Assessment |
| Verified | No | No |
| Deployment type | On-Premises | Cloud |
| Company size fit | Startup, SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise |
| Company | Tenable | – |
| Headquarters | – | – |

### Use cases and capabilities

| | Nessus Professional | SecurityVulnerability.io |
|---|---|---|
| Vulnerability | Yes | – |
| Security Scanning | Yes | – |
| CVE | Yes | – |
| Penetration Testing Framework | Yes | – |
| NIST | Yes | – |
| PCI DSS | Yes | – |
| CIS | Yes | – |
| Network Scanning | Yes | – |
| VAPT | Yes | – |

### Core features

**Nessus Professional**

10 features listed. Sign in on the page to see them.

**SecurityVulnerability.io**

No features listed.

## Which one fits you

Based on what each listing shows: deployment, company size, price and open source.

- [Nessus Professional](https://cybersectools.com/tools/nessus-professional) fits if you need to run it on your own servers and you are a startup.
- [SecurityVulnerability.io](https://cybersectools.com/tools/securityvulnerabilityio) fits if you want a cloud product and you need a free product.

## Nessus Professional vs SecurityVulnerability.io FAQ

Common questions when comparing Nessus Professional vs SecurityVulnerability.io for vulnerability assessment.

### What is the difference between Nessus Professional and SecurityVulnerability.io?

**Nessus Professional**: Vulnerability scanner for assessing networks, systems, and apps for security flaws, built by Tenable.

**SecurityVulnerability.io**: SecurityVulnerability.io simplifies the process of collecting, enriching, and presenting vulnerability information for both human and machine consumption.

The table above shows where their features, integrations, deployment and company size fit differ.

### Is Nessus Professional a good alternative to SecurityVulnerability.io?

Often, yes. Nessus Professional and SecurityVulnerability.io are both Vulnerability Assessment products. Key differences: Nessus Professional is Commercial while SecurityVulnerability.io is Free. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Nessus Professional vs Webray RayScan](https://cybersectools.com/compare/nessus-professional-vs-webray-rayscan)
- [Nessus Professional vs Positive Technologies XSpider PRO](https://cybersectools.com/compare/nessus-professional-vs-positive-technologies-xspider-pro)
- [Nessus Professional vs Tripwire IP360](https://cybersectools.com/compare/nessus-professional-vs-tripwire-ip360)
- [SecurityVulnerability.io vs Webray RayScan](https://cybersectools.com/compare/securityvulnerabilityio-vs-webray-rayscan)
- [SecurityVulnerability.io vs Positive Technologies XSpider PRO](https://cybersectools.com/compare/positive-technologies-xspider-pro-vs-securityvulnerabilityio)
- [SecurityVulnerability.io vs Tripwire IP360](https://cybersectools.com/compare/securityvulnerabilityio-vs-tripwire-ip360)

## Alternatives to each

- [See all Nessus Professional alternatives](https://cybersectools.com/alternatives/nessus-professional)
- [See all SecurityVulnerability.io alternatives](https://cybersectools.com/alternatives/securityvulnerabilityio)

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Source: https://cybersectools.com/compare/nessus-professional-vs-securityvulnerabilityio

For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/nessus-professional.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md.

More on Nessus Professional and SecurityVulnerability.io: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=compare-md