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# OpenVAS vs Tenable Nessus Comparison - What are their main differences?

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OpenVASTenable Nessus[+ Add Product](#)

Reviews

**OpenVAS** [

4.4/5(32)

](https://www.g2.com/products/openvas/reviews#reviews)

**Tenable Nessus** [

4.5/5(316)

](https://www.g2.com/products/tenable-nessus/reviews#reviews)

Pricing

**OpenVAS**
No pricing available

**Tenable Nessus**
Free Trial

**$3,390.00** 1 License With One-Time Purchase · Pro - 1 Year

**Pricing Insights**
from reviews

Time to Implement

**OpenVAS**
1 month

Based on 6 responses

**Tenable Nessus**
1 month

Based on 23 responses

Return on Investment

**OpenVAS**
Not enough reviews yet

**Tenable Nessus**
12 months

Based on 19 responses

Perceived Cost

**OpenVAS**
$$$$$

**Tenable Nessus**
$$$$$

Average Discount

**OpenVAS**
Not enough reviews yet

**Tenable Nessus**
8%

Pros & Cons

**OpenVAS**
Not enough data

**Tenable Nessus**
[
Vulnerability Identification (21)
](https://www.g2.com/products/tenable-nessus/reviews?filters%5Bsentiment_snippet%5D=1158838&qs=pros-and-cons#reviews)[
Vulnerability Detection (19)
](https://www.g2.com/products/tenable-nessus/reviews?filters%5Bsentiment_snippet%5D=1158713&qs=pros-and-cons#reviews)[
Slow Scanning (8)
](https://www.g2.com/products/tenable-nessus/reviews?filters%5Bsentiment_snippet%5D=1158016&qs=pros-and-cons#reviews)[
Expensive (6)
](https://www.g2.com/products/tenable-nessus/reviews?filters%5Bsentiment_snippet%5D=2314763&qs=pros-and-cons#reviews)

Integrations

**OpenVAS**
Not enough data

**Tenable Nessus**
[

 ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/large_detail/large_detail_cbd3fb3d7b519da99e67a6ef0172fadf/tenable-security-center.png "Product Avatar Image")

Tenable Security Center

](https://www.g2.com/products/tenable-security-center/reviews)[

 ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/large_detail/large_detail_cbd3fb3d7b519da99e67a6ef0172fadf/tenable-vulnerability-management.png "Product Avatar Image")

Tenable Vulnerability...

](https://www.g2.com/products/tenable-vulnerability-management/reviews)[
View all
](https://www.g2.com/products/tenable-nessus/integrations)

Screenshots

**OpenVAS**
No screenshot available

**Tenable Nessus**
 ![Tenable Nessus screenshot](https://images.g2crowd.com/cdn-cgi/image/width=600,height=600,fit=scale-down,format=auto,onerror=redirect,/https://images.g2crowd.com/uploads/attachment/file/91875/grouped-view-1.png)

Ratings

Meets Requirements

**OpenVAS**

8.5

8.521

**Tenable Nessus**

9.0

9.0260

Ease of Use

**OpenVAS**

7.7

7.721

**Tenable Nessus**

8.9

8.9263

Ease of Setup

**OpenVAS**

7.9

7.915

**Tenable Nessus**

8.8

8.8185

Ease of Admin

**OpenVAS**

7.7

7.715

**Tenable Nessus**

8.9

8.9171

Quality of Support

**OpenVAS**

6.9

6.915

**Tenable Nessus**

8.4

8.4240

Has the product been a good partner in doing business?

**OpenVAS**

7.5

7.510

**Tenable Nessus**

8.7

8.7159

Product Direction (% positive)

**OpenVAS**

8.1

8.118

**Tenable Nessus**

8.9

8.9246

Features

Vulnerability Scanner[Hide 58 FeaturesShow 58 Features](javascript:void(0);)

7.5

18

8.4

169

Performance

Detection Rate

8.1

16

8.9(won by 0.8)

144

|

Verified

 (There is a greater than 0.5 difference between this product's rating and its competitors)

False Positives

6.6

15

6.7(won by 0.1)

141

|

Verified

Automated Scans

8.3

13

9.1(won by 0.8)

139

|

Verified

 (There is a greater than 0.5 difference between this product's rating and its competitors)

Issue Tracking

7.9(won by default)

13

Feature Not Available

Anomaly/Malware Detection

Not enough data

Not enough data

Network

Compliance Testing

7.5

12

8.8(won by 1.3)

138

|

Verified

 (There is a greater than 0.5 difference between this product's rating and its competitors)

Perimeter Scanning

8.0

14

8.9(won by 0.9)

135

|

Verified

 (There is a greater than 0.5 difference between this product's rating and its competitors)

Configuration Monitoring

7.0

11

8.4(won by 1.4)

111

|

Verified

 (There is a greater than 0.5 difference between this product's rating and its competitors)

Vulnerability Scanning

Not enough data

10.0(won by default)

7

Source-Code Scanning

Not enough data

Not enough data

Web Scanning

Not enough data

Not enough data

Application

Static Code Analysis

5.7

9

7.3(won by 1.6)

84

 (There is a greater than 0.5 difference between this product's rating and its competitors)

Black Box Testing

7.8(tied score)

13

7.8(tied score)

103

Manual Application Testing

8.5(won by default)

10

Feature Not Available

Risk Analysis

Not enough data

Not enough data

Agentic AI - Vulnerability Scanner

Autonomous Task Execution

Not enough data

8.1(won by default)

9

Proactive Assistance

Not enough data

7.9(won by default)

8

Additional Functionality

SSL Security

Not enough data

Not enough data

HIPAA Compliant

Not enough data

Not enough data

API

Not enough data

Not enough data

Threat Response

Not enough data

Not enough data

Endpoint Protection

Not enough data

Not enough data

Maintenance Scheduling

Not enough data

Not enough data

Third-Party Integrations

Not enough data

Not enough data

Security Auditing

Not enough data

Not enough data

Application Security

Not enough data

Not enough data

Encryption

Not enough data

Not enough data

Network Security

Not enough data

Not enough data

Real-Time Reporting

Not enough data

Not enough data

AI Copilot

Not enough data

Not enough data

Reporting/Analytics

Not enough data

Not enough data

Authentication

Not enough data

Not enough data

Financial Data Protection

Not enough data

Not enough data

Anti Virus

Not enough data

Not enough data

Secure Data Storage

Not enough data

Not enough data

Virus Definition Update

Not enough data

Not enough data

Activity Dashboard

Not enough data

Not enough data

VPN

Not enough data

Not enough data

Audit Trail

Not enough data

Not enough data

Anti Spam

Not enough data

Not enough data

Access Controls/Permissions

Not enough data

Not enough data

Data Visualization

Not enough data

Not enough data

Alerts/Escalation

Not enough data

Not enough data

Data Security

Not enough data

Not enough data

Runtime Container Security

Not enough data

Not enough data

Asset Discovery

Not enough data

Not enough data

Threat Intelligence

Not enough data

Not enough data

Vulnerability Protection

Not enough data

Not enough data

Alerts/Notifications

Not enough data

Not enough data

Vulnerability/Threat Prioritization

Not enough data

Not enough data

Generative AI

Not enough data

Not enough data

SQL Injections

Not enough data

Not enough data

Real-Time Analytics

Not enough data

Not enough data

Threat Protection

Not enough data

Not enough data

Web-Application Security

Not enough data

Not enough data

Password Protection

Not enough data

Not enough data

Website Crawling

Not enough data

Not enough data

Vulnerability Assessment

Not enough data

Not enough data

Attack Surface Management[Hide 42 FeaturesShow 42 Features](javascript:void(0);)

Not enough data

8.3

6

Asset Management

Asset Discovery

Not enough data

6.9(won by default)

6

Shadow IT Detection

Not enough data

7.5(won by default)

6

Change Management

Not enough data

4.7(won by default)

6

Compliance Management

Not enough data

Not enough data

Monitoring

Gap Analysis

Not enough data

8.3(won by default)

6

Vulnerability Intelligence

Not enough data

10.0(won by default)

6

Compliance Monitoring

Not enough data

8.6(won by default)

6

Continuous Monitoring

Not enough data

9.2(won by default)

6

Server Monitoring

Not enough data

Not enough data

Real-Time Monitoring

Not enough data

Not enough data

Risk Management

Risk-Prioritization

Not enough data

9.2(won by default)

6

Reconnaissance

Not enough data

9.2(won by default)

6

At-Risk Analysis

Not enough data

8.6(won by default)

6

Threat Intelligence

Not enough data

9.4(won by default)

6

Generative AI

AI Text Summarization

Not enough data

Not enough data

Additional Functionality

SSL Security

Not enough data

Not enough data

HIPAA Compliant

Not enough data

Not enough data

API

Not enough data

Not enough data

Threat Response

Not enough data

Not enough data

Endpoint Protection

Not enough data

Not enough data

Maintenance Scheduling

Not enough data

Not enough data

Third-Party Integrations

Not enough data

Not enough data

Security Auditing

Not enough data

Not enough data

Application Security

Not enough data

Not enough data

Encryption

Not enough data

Not enough data

Network Security

Not enough data

Not enough data

Real-Time Reporting

Not enough data

Not enough data

AI Copilot

Not enough data

Not enough data

Reporting/Analytics

Not enough data

Not enough data

Authentication

Not enough data

Not enough data

Financial Data Protection

Not enough data

Not enough data

Anti Virus

Not enough data

Not enough data

Secure Data Storage

Not enough data

Not enough data

Virus Definition Update

Not enough data

Not enough data

Activity Dashboard

Not enough data

Not enough data

VPN

Not enough data

Not enough data

Audit Trail

Not enough data

Not enough data

Anti Spam

Not enough data

Not enough data

Access Controls/Permissions

Not enough data

Not enough data

Data Visualization

Not enough data

Not enough data

Alerts/Escalation

Not enough data

Not enough data

Data Security

Not enough data

Not enough data

Show 4 feature categories with incomplete data

Vulnerability Management[Hide 36 FeaturesShow 36 Features](javascript:void(0);)

Not enough data

Not enough data

Additional Functionality

Search/Filter

Not enough data

Not enough data

Risk Management

Not enough data

Not enough data

Generative AI

Not enough data

Not enough data

Alerts/Notifications

Not enough data

Not enough data

Compliance Management

Not enough data

Not enough data

Third-Party Integrations

Not enough data

Not enough data

Certificate Assessment

Not enough data

Not enough data

API

Not enough data

Not enough data

Incident Management

Not enough data

Not enough data

Automated Containment

Not enough data

Not enough data

Real-Time Data

Not enough data

Not enough data

Vulnerability Scanning

Not enough data

Not enough data

Monitoring

Not enough data

Not enough data

Policy Management

Not enough data

Not enough data

Asset Discovery

Not enough data

Not enough data

Penetration Testing

Not enough data

Not enough data

Runtime Container Security

Not enough data

Not enough data

Activity Dashboard

Not enough data

Not enough data

Security Auditing

Not enough data

Not enough data

Issue Tracking

Not enough data

Not enough data

Threat Intelligence

Not enough data

Not enough data

Patch Management

Not enough data

Not enough data

Endpoint Management

Not enough data

Not enough data

Collaboration Tools

Not enough data

Not enough data

Vulnerability Management

Not enough data

Not enough data

Goal Setting/Tracking

Not enough data

Not enough data

Vulnerability Assessment

Not enough data

Not enough data

Asset Tagging

Not enough data

Not enough data

Assessment Management

Not enough data

Not enough data

Access Controls/Permissions

Not enough data

Not enough data

AI Copilot

Not enough data

Not enough data

Vulnerability/Threat Prioritization

Not enough data

Not enough data

Vulnerability Protection

Not enough data

Not enough data

Risk Assessment

Not enough data

Not enough data

Reporting/Analytics

Not enough data

Not enough data

SQL Injections

Not enough data

Not enough data

Dynamic Application Security Testing (DAST)[Hide 13 FeaturesShow 13 Features](javascript:void(0);)

Not enough data

Not enough data

Administration

API / Integrations

Not enough data

Not enough data

Extensibility

Not enough data

Not enough data

Analysis

Reporting and Analytics

Not enough data

Not enough data

Issue Tracking

Not enough data

Not enough data

Static Code Analysis

Not enough data

Not enough data

Vulnerability Scan

Not enough data

Not enough data

Code Analysis

Not enough data

Not enough data

Testing

Manual Testing

Not enough data

Not enough data

Test Automation

Not enough data

Not enough data

Compliance Testing

Not enough data

Not enough data

Black-Box Scanning

Not enough data

Not enough data

Detection Rate

Not enough data

Not enough data

False Positives

Not enough data

Not enough data

API Security[Hide 10 FeaturesShow 10 Features](javascript:void(0);)

Not enough data

Not enough data

API Management 

API Discovery

Not enough data

Not enough data

API Monitoring

Not enough data

Not enough data

Reporting

Not enough data

Not enough data

Change Management

Not enough data

Not enough data

Security Testing

Compliance Monitoring

Not enough data

Not enough data

API Verification

Not enough data

Not enough data

API Testing

Not enough data

Not enough data

Security Management

Security and Policy Enforcement

Not enough data

Not enough data

Anomoly Detection

Not enough data

Not enough data

Bot Detection

Not enough data

Not enough data

Cloud Security[Hide 48 FeaturesShow 48 Features](javascript:void(0);)

Not enough data

Not enough data

Cloud Visibility

Data Discovery

Not enough data

Not enough data

Cloud Registry

Not enough data

Not enough data

Cloud Gap Analytics

Not enough data

Not enough data

Security

Data Security

Not enough data

Not enough data

Data loss Prevention

Not enough data

Not enough data

Security Auditing

Not enough data

Not enough data

Real-Time Data

Not enough data

Not enough data

Cloud Application Security

Not enough data

Not enough data

SSL Security

Not enough data

Not enough data

Identity

SSO

Not enough data

Not enough data

Governance

Not enough data

Not enough data

User Analytics

Not enough data

Not enough data

Real-Time Analytics

Not enough data

Not enough data

Visual Analytics

Not enough data

Not enough data

Reporting/Analytics

Not enough data

Not enough data

Additional Functionality

Alerts/Notifications

Not enough data

Not enough data

AI Copilot

Not enough data

Not enough data

Access Controls/Permissions

Not enough data

Not enough data

Endpoint Management

Not enough data

Not enough data

Intrusion Detection System

Not enough data

Not enough data

Compliance Management

Not enough data

Not enough data

HIPAA Compliant

Not enough data

Not enough data

Search/Filter

Not enough data

Not enough data

API

Not enough data

Not enough data

Two-Factor Authentication

Not enough data

Not enough data

Data Visualization

Not enough data

Not enough data

Risk Assessment

Not enough data

Not enough data

Real-Time Monitoring

Not enough data

Not enough data

Event Logs

Not enough data

Not enough data

Activity Dashboard

Not enough data

Not enough data

Audit Management

Not enough data

Not enough data

Cloud Security Policy Management

Not enough data

Not enough data

Vulnerability Protection

Not enough data

Not enough data

Anti Virus

Not enough data

Not enough data

Incident Management

Not enough data

Not enough data

Threat Intelligence

Not enough data

Not enough data

Real-Time Reporting

Not enough data

Not enough data

Reporting & Statistics

Not enough data

Not enough data

User Management

Not enough data

Not enough data

Encryption

Not enough data

Not enough data

Vulnerability Scanning

Not enough data

Not enough data

Generative AI

Not enough data

Not enough data

Status Tracking

Not enough data

Not enough data

Third-Party Integrations

Not enough data

Not enough data

Real-Time Notifications

Not enough data

Not enough data

Patch Management

Not enough data

Not enough data

Monitoring

Not enough data

Not enough data

Cloud Encryption

Not enough data

Not enough data

User Insights

Reviewers' Company Size

[![OpenVAS](https://images.g2crowd.com/uploads/product/image/thumb_square/thumb_square_48d6ca1f8cebf47000b6f8223acab699/openvas.png "OpenVAS")](https://www.g2.com/products/openvas/reviews)

OpenVAS

Small-Business(50 or fewer emp.)

35.7%

Mid-Market(51-1000 emp.)

53.6%

Enterprise(\> 1000 emp.)

10.7%

[![Tenable Nessus](https://images.g2crowd.com/uploads/product/hd_favicon/127e03b7d601741c15306f07b0f8cf84/tenable-nessus.svg "Tenable Nessus")](https://www.g2.com/products/tenable-nessus/reviews)

Tenable Nessus

Small-Business(50 or fewer emp.)

25.4%

Mid-Market(51-1000 emp.)

40.5%

Enterprise(\> 1000 emp.)

34.1%

Small-Business

(50 or fewer emp.)

35.7%

25.4%

Mid-Market

(51-1000 emp.)

53.6%

40.5%

Enterprise

(\> 1000 emp.)

10.7%

34.1%

Reviewers' Industry

[![OpenVAS](https://images.g2crowd.com/uploads/product/image/thumb_square/thumb_square_48d6ca1f8cebf47000b6f8223acab699/openvas.png "OpenVAS")](https://www.g2.com/products/openvas/reviews)
OpenVAS

Computer & Network Security

25.0%

Hospital & Health Care

14.3%

Information Technology and Services

10.7%

Computer Software

10.7%

Management Consulting

7.1%

Other

32.1%

[![Tenable Nessus](https://images.g2crowd.com/uploads/product/hd_favicon/127e03b7d601741c15306f07b0f8cf84/tenable-nessus.svg "Tenable Nessus")](https://www.g2.com/products/tenable-nessus/reviews)
Tenable Nessus

Information Technology and Services

25.3%

Computer & Network Security

16.8%

Financial Services

7.1%

Computer Software

5.7%

Banking

5.1%

Other

40.1%

FAQs

## OpenVAS vs Tenable Nessus FAQs

Generated using AI

Last updated: August 14, 2026

### What is the difference between Tenable Nessus vs OpenVAS?

Tenable Nessus stands out for its higher G2 rating, superior support, and ease of setup compared to OpenVAS.

| [Tenable Nessus](https://www.g2.com/products/tenable-nessus/reviews) | [OpenVAS](https://www.g2.com/products/openvas/reviews) |
| --- | --- |
| 4.5/5 (305 reviews) | 4.4/5 (32 reviews) |
| Mid-Market | Mid-Market |
| 8.8 | 7.9 |
| 8.4 | 6.9 |
| Vulnerability Identification (20 all-time mentions) | — |

### How do the pricing models of Tenable Nessus and OpenVAS compare?

Tenable Nessus is rated higher for price satisfaction, while OpenVAS is frequently praised for being free and open source.

- **Tenable Nessus:** Reviewers note increasing costs and licensing complexity, but many still find value in its features and support.
- **OpenVAS:** Reviewers consistently highlight its free, open-source model as a major advantage, especially for startups and small businesses.
- **Switching reasons:** Several reviewers mention choosing OpenVAS to avoid the costs associated with commercial products like Tenable Nessus.

### What are the best alternatives to Tenable Nessus and OpenVAS?

The top three alternatives to Tenable Nessus and OpenVAS are Intruder, Burp Suite, and Invicti.

| Product | G2 Rating (reviews) | Largest Segment | Pricing Insight | Top Reviewer-Cited Strength |
| --- | --- | --- | --- | --- |
| [Tenable Nessus](https://www.g2.com/products/tenable-nessus/reviews) | 4.5/5 (305 reviews) | Mid-Market | Reviewers note increasing costs but strong value for features | Vulnerability Identification (20 all-time mentions) |
| [OpenVAS](https://www.g2.com/products/openvas/reviews) | 4.4/5 (32 reviews) | Mid-Market | Consistently praised for being free and open source | Free, open-source scanning |
| [Intruder](https://www.g2.com/products/intruder/reviews) | 4.8/5 (209 reviews) | — | — | — |
| [Burp Suite](https://www.g2.com/products/burp-suite/reviews) | 4.8/5 (129 reviews) | Mid-Market | — | — |
| [Invicti](https://www.g2.com/products/invicti/reviews) | 4.5/5 (72 reviews) | Enterprise | — | — |

### Which Vulnerability Scanner features should I prioritize when comparing Tenable Nessus and OpenVAS?

Buyers comparing Tenable Nessus and OpenVAS should prioritize vulnerability identification, ease of use, reporting capabilities, false positive rates, and support quality.

- **Vulnerability Identification:** Tenable Nessus: 20 all-time mentions; OpenVAS: praised for free, open-source scanning.
- **Ease of Use:** Tenable Nessus: 8.9; OpenVAS: 7.7.
- **Reporting Capabilities:** Tenable Nessus: frequently cited for detailed, actionable reports; OpenVAS: reviewers highlight multiple export formats (CSV, PDF, JSON).
- **False Positives:** Tenable Nessus: 5 all-time mentions; OpenVAS: reviewers note false positives as a recurring issue.
- **Support Quality:** Tenable Nessus: 8.4; OpenVAS: 6.9.

### What are the pros and cons of Tenable Nessus vs OpenVAS?

Tenable Nessus is strongest in vulnerability identification and ease of use, while OpenVAS is most valued for being free and open source.

- **Tenable Nessus strengths:** Vulnerability Identification (20 all-time mentions), Vulnerability Detection (18), Ease of Use (16), Automated Scanning (15), Features (13), User Interface (13), Security (9), Scanning Technology (7), Automation (6), Security Testing (6), Software Updates (6), Customer Support (5), Detailed Information (5), Flexibility (5), Setup Ease (5).
- **Tenable Nessus trade-offs:** Slow Scanning (7), Expensive (6), Limited Features (6), Complexity (5), False Positives (5).
- **OpenVAS strengths:** Free and open source, praised for supporting multiple export formats and automation, and valued for small business and startup use.
- **OpenVAS trade-offs:** Reviewers note a less intuitive UI, more frequent false positives, and lower support satisfaction compared to Tenable Nessus.

### Is Tenable Nessus or OpenVAS better for small businesses?

OpenVAS is the better fit for small businesses due to its free, open-source model and positive small-business reviewer sentiment.

- **Tenable Nessus:** Largest segment is Mid-Market; reviewers note increasing costs and licensing complexity as barriers for smaller organizations.
- **OpenVAS:** Largest segment is Mid-Market; reviewers from small startups and regulated industries highlight its value as a free solution for organizations with limited budgets.

### Which Vulnerability Scanner platform has better integrations?

Tenable Nessus is favored for integrations, with reviewers citing integration capabilities in recent reviews.

- **Tenable Nessus:** Reviewers mention integrations with HCL BigFix and other systems, highlighting its API and export features for connecting with external tools.
- **OpenVAS:** Reviewers note integration with Metasploit and AlienVault, but with less frequency and detail than Tenable Nessus.

### How do Tenable Nessus and OpenVAS compare on customer support?

Tenable Nessus scores materially higher on Quality of Support than OpenVAS, with a 1.5-point advantage (8.4 vs 6.9).

- **Tenable Nessus:** Reviewers frequently praise responsive and helpful support, with several citing quick resolution and positive experiences.
- **OpenVAS:** Reviewers report mixed experiences, with some noting challenges in finding support and reliance on community resources.

### Which is easier to implement, Tenable Nessus or OpenVAS?

Tenable Nessus is easier to implement, with a 0.9-point higher Ease of Setup score (8.8 vs 7.9).

- **Tenable Nessus:** Reviewers consistently describe setup as straightforward, quick, and accessible even for those without extensive technical backgrounds.
- **OpenVAS:** Reviewers note that while deployment is manageable, the UI and configuration can be confusing for new users, and maintenance may require more technical effort.

### Which product has better False Positives?

Tenable Nessus is rated better for false positives, with fewer reviewer-cited issues than OpenVAS.

- **Tenable Nessus:** False Positives: 5 all-time mentions; reviewers note a generally low false positive rate, though some manual verification is still needed.
- **OpenVAS:** Reviewers frequently mention false positives as a recurring issue, with several noting the need for additional triage and validation.

Alternatives

**OpenVAS Alternatives**

 ![Tenable Vulnerability Management](https://images.g2crowd.com/uploads/product/hd_favicon/127e03b7d601741c15306f07b0f8cf84/tenable-vulnerability-management.svg "Tenable Vulnerability Management")

[
Tenable Vulnerability...
](/products/tenable-vulnerability-management/reviews)

 ![Burp Suite](https://images.g2crowd.com/uploads/product/hd_favicon/1084a0792dcd7344d19c56aea015669c/burp-suite.svg "Burp Suite")

[
Burp Suite
](/products/burp-suite/reviews)

 ![InsightVM (Nexpose)](https://images.g2crowd.com/uploads/product/hd_favicon/1d6a2407e149c3d13d93bc4b09b076d6/insightvm-nexpose.svg "InsightVM (Nexpose)")

[
InsightVM (Nexpose)
](/products/insightvm-nexpose/reviews)

 ![Zenmap](https://images.g2crowd.com/uploads/product/image/thumb_square/thumb_square_d3d729786f0d243b2655429c8c2a9611/zenmap.png "Zenmap")

[
Zenmap
](/products/zenmap/reviews)

**Tenable Nessus Alternatives**

 ![Intruder](https://images.g2crowd.com/uploads/product/hd_favicon/1539808658/intruder.svg "Intruder")

[
Intruder
](/products/intruder/reviews)

 ![Invicti](https://images.g2crowd.com/uploads/product/hd_favicon/3bee4d2b732dab5368b9a8aa21f05e30/invicti.svg "Invicti")

[
Invicti
](/products/invicti/reviews)

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