The Best Vulnerability Scanner Software in 2026
We researched vulnerability scanner software using official vendor websites, including pricing pages, plan tables, and product documentation. Rankings focus on the category’s core job, value for money, and verified features so buyers can compare tools for finding and prioritizing weaknesses across their environments.
Our top picks
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Top ranked
Qualys Vulnerability Management#1 of 299.3/10Broad VMDR coverage with continuous scanning, prioritization, and remediation workflows.
7-day trial
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Runner-up
Tenable Security Center#2 of 299.2/10An on-premises platform for enterprise vulnerability discovery, prioritization, and remediation tracking.
Pricing on request
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Top-ranked free plan
9.0/10Continuous endpoint scanning and patching with risk prioritization across major platforms.
Free plan · 30-day trial
Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.
The full ranking 29 tools, best first
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Best forLarge teams needing enterprise-wide vulnerability management
Broad VMDR coverage with continuous scanning, prioritization, and remediation workflows.
9.3/10★★★★★Visit Qualys -
Best forEnterprises managing vulnerability risk on-premises
An on-premises platform for enterprise vulnerability discovery, prioritization, and remediation tracking.
9.2/10★★★★★Visit Tenable -
Best forTeams seeking broad asset scanning and remediation tracking
Broad vulnerability assessment paired with risk prioritization and remediation tracking.
9.1/10★★★★★Visit Rapid7 -
Best forOrganizations combining endpoint scans with patching
Continuous endpoint scanning and patching with risk prioritization across major platforms.
9.0/10★★★★☆Visit ManageEngine -
Best forTeams wanting free, self-hosted network vulnerability scans
A self-hosted scanner with authenticated testing, continuous scans and a free 150-asset tier.
- Continuous scanning
Free plan · 14-day trial Our OpenVAS verdict → Visit OpenVASFor vendors Sponsor this spot · #5 · $59/mo →8.9/10★★★★☆Visit OpenVAS -
Best forPractitioners needing credentialed network and IP scans
Credentialed IP scanning and compliance checks, delivered as self-hosted software.
- Continuous scanning
8.8/10★★★★☆Visit Tenable -
Best forDevelopers seeking a free, extensible web scanner
A free, extensible web scanner for developers who can run and automate it themselves.
8.7/10★★★★☆Visit OWASP ZAP -
Best forTeams scanning external assets, endpoints, and cloud
A broad scanner for teams that need visibility across external, internal, application, and cloud assets.
- Continuous scanning
8.6/10★★★★☆Visit Intruder -
Best forTeams scanning web applications and APIs in CI/CD
A CI/CD-ready DAST platform for authenticated web and API scanning.
8.5/10★★★★☆Try Burp Suite DAST -
Best forTeams focused on authenticated web and API DAST
Focused DAST with authenticated scanning, attack replay, and CI/CD automation.
8.4/10★★★★☆Visit Rapid7 -
Best forOrganizations needing proof-based web and API testing
Proof-based web and API testing with broader AppSec capabilities for larger teams.
8.3/10★★★★☆Visit Invicti -
Best forTeams scanning authenticated web apps and APIs
A flexible scanner for authenticated web apps and APIs, with proof-based findings and CI/CD links.
8.2/10★★★★☆Visit Acunetix -
Best forSmall teams scanning one web or API target
A web and API scanner with authenticated testing, but paid plans cap coverage by target count.
- Authenticated scans
8.1/10★★★★☆Visit Astra Security -
Best forDevelopers adding low-cost API DAST to CI/CD
A developer-focused DAST scanner for web apps and APIs, with a $5/month Vibe plan.
8.0/10★★★★☆Visit StackHawk -
Best forSecurity teams building template-driven scans
A self-hosted CLI scanner built around customizable YAML templates and broad protocol coverage.
- Authenticated scans
7.9/10★★★★☆Visit Nuclei -
Best forTeams focused on container image and Kubernetes risks
A container-focused scanner with Kubernetes monitoring, registry integrations, and a free entry tier.
7.8/10★★★★☆Visit Snyk Container -
Best forTeams monitoring external attack surfaces continuously
Continuous external asset discovery and vulnerability testing, with annual platform plans.
7.7/10★★★★☆Visit Detectify -
Best forWindows-based teams scanning networks on premises
An on-premises Windows scanner for network and web application vulnerability assessments.
- Report exports
- Authenticated scans
- Continuous scanning
7.6/10★★★★☆Visit XSpider -
Best forMid-market and enterprise DevSecOps teams
A broad AppSec platform for teams that need scanning, policy enforcement, and remediation tracking.
7.5/10★★★★☆Visit OpenText -
Best forEnterprise teams prioritizing code and dependency checks
A cloud application security platform for code, dependency, and posture checks.
7.5/10★★★★☆Visit Checkmarx -
Best forTeams needing free, self-hosted network scanning
A free, self-hosted scanner for teams that can operate Linux-based security software.
7.5/10★★★★☆Visit Greenbone -
Best forTeams wanting a free, broad open-source scanner
A free, self-hosted scanner covering vulnerabilities and related software risks.
7.4/10★★★★☆Visit Trivy -
Best forTeams scanning images, filesystems, and SBOMs
A self-hosted CLI scanner for teams that need vulnerability checks across images, filesystems, and SBOMs.
7.3/10★★★★☆Visit Grype -
Best forTeams consolidating code, dependency, and container checks
Broad code, dependency, container, IaC, SBOM, and AI security in one platform.
7.1/10★★★★☆Visit Mend.io -
Best forEnterprises seeking source-code security analysis
Analyzes code across development workflows, but does not scan networks or running applications.
7.0/10★★★★☆Visit Veracode -
Best forTeams seeking low-cost static code security analysis
Source-code security analysis with IDE and CI/CD integrations and custom rules.
6.9/10★★★☆☆Visit Kiuwan -
Best forTeams needing static analysis and custom rules
Source-code analysis with custom rules, secrets checks, and CI/CD automation.
6.8/10★★★☆☆Visit HCL AppScan -
Best forTeams scanning OCI and Docker image contents
An open-source service that indexes container images and matches their contents to known vulnerabilities.
- Continuous scanning
6.6/10★★★☆☆Visit Clair -
Best forBuyers evaluating web-app-only scanning
A web-app vulnerability scanner for buyers comparing focused scanning options.
6.5/10★★★☆☆Visit Tenable
No tools match those filters.
Compare at a glance
| # | Tool | Free plan | Paid from | Score |
|---|---|---|---|---|
| 1 | Qualys Vulnerability Management | 9.3 | ||
| 2 | Tenable Security Center | No | 9.2 | |
| 3 | Rapid7 InsightVM | $1.62/mo | 9.1 | |
| 4 | ManageEngine Vulnerability Manager Plus | Yes | $695/unit/yr | 9.0 |
| 5 | OpenVAS | Yes | 8.9 | |
| 6 | Tenable Nessus | No | $4,790/yr | 8.8 |
| 7 | OWASP ZAP | Yes | Free | 8.7 |
| 8 | Intruder | Yes | 8.6 | |
| 9 | Burp Suite DAST | 8.5 | ||
| 10 | Rapid7 InsightAppSec | No | $175/unit/mo | 8.4 |
| 11 | Invicti | No | $500/unit usage-based | 8.3 |
| 12 | Acunetix | 8.2 | ||
| 13 | Astra Security | Yes | $69/mo | 8.1 |
| 14 | StackHawk HawkScan | 8.0 | ||
| 15 | Nuclei | Yes | Free | 7.9 |
| 16 | Snyk Container | Yes | $25/user/mo | 7.8 |
| 17 | Detectify Surface Monitoring | Yes | €2,500/yr | 7.7 |
| 18 | XSpider | No | 7.6 | |
| 19 | OpenText Fortify Software Security Platform | 7.5 | ||
| 20 | Checkmarx One | No | 7.5 | |
| 21 | Greenbone Community Edition | Yes | Free | 7.5 |
| 22 | Trivy | Yes | Free | 7.4 |
| 23 | Grype | Yes | Free | 7.3 |
| 24 | Mend.io | $250/user/yr | 7.1 | |
| 25 | Veracode Static Analysis | 7.0 | ||
| 26 | Kiuwan Code Security | No | $49/user/mo | 6.9 |
| 27 | HCL AppScan Source | No | 6.8 | |
| 28 | Clair | Yes | Free | 6.6 |
| 29 | Tenable Web App Scanning | 6.5 |
Head-to-head All 16 comparisons →
- Qualys Vulnerability Management vs OpenVAS
- Qualys Vulnerability Management vs Tenable Nessus
- Qualys Vulnerability Management vs OWASP ZAP
- Qualys Vulnerability Management vs Intruder
- Tenable Security Center vs Tenable Nessus
- Tenable Security Center vs OWASP ZAP
- Tenable Security Center vs Intruder
- Rapid7 InsightVM vs Tenable Nessus
- Rapid7 InsightVM vs OWASP ZAP
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How we rank vulnerability scanner software
Every tool on this page was researched by iTechGuides Editors from its official website — pricing pages, plan tables and product documentation. We rank on how well each one does this category's core job, what the free or entry plan includes, and where it falls short. Where we have enough verified facts, the score out of 10 is a rubric — job fit, value and how much we could verify — shown with its breakdown on every tool's page; a tool we have not verified enough to score yet shows its rank without a number. Scores are re-checked when a product changes its plans. Read the full editorial policy, or submit a tool we missed.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update