Checkmarx vs Nessus: Which Should You Choose in 2026?
Choosing between Checkmarx and Nessus comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
Checkmarx
Application security testing platform
Best for you if:
- 0
- • You need code review features specifically
- • Checkmarx is an enterprise application security testing platform for finding vulnerabilities in code
- • It provides SAST, SCA, and DAST scanning integrated into CI/CD pipelines
Nessus
Vulnerability assessment scanner
Best for you if:
- 0
- • You need vulnerability scanning features specifically
- • Nessus is a vulnerability scanner for identifying security issues
- • It scans networks and systems for vulnerabilities, misconfigurations, and malware
| At a Glance |  Checkmarx |  Nessus |
|---|---|---|
Price | Paid | Paid |
Best For | Code Review | Vulnerability Scanning |
Rating | - | - |
| Feature | Checkmarx | Nessus |
|---|---|---|
| Pricing Model | Paid | Paid |
| Community Rating | No ratings yet | No ratings yet |
| Total Reviews | 0 | 0 |
| Community Upvotes | 0 | 0 |
| Categories | Code ReviewTesting & QA | Vulnerability ScanningSecurity Monitoring |
How Checkmarx and Nessus Compare
Checkmarx
Application security testing platform
Paid
Nessus
Vulnerability assessment scanner
Paid
Checkmarx is a code review tool. Nessus is in vulnerability scanning.
Who Should Use What?
On a budget?
Both are paid. Compare plans on their websites.
Go with: Checkmarx
Want the highest-rated option?
Neither has user reviews yet.
Go with: Checkmarx
Value user reviews?
Neither has user reviews yet.
Go with: Checkmarx
3 Questions to Help You Decide
What's your budget?
Both are paid. Pricing won't help you decide here.
What's your use case?
Checkmarx is a code review tool. Nessus is in vulnerability scanning. Pick the category that matches your needs.
How important are ratings?
Neither has user reviews yet.
Key Takeaways
Checkmarx
- 0
- Our pick for this comparison
Nessus
- Better fit for vulnerability scanning
The Bottom Line
Checkmarx is our pick.
Frequently Asked Questions
Is Checkmarx or Nessus better?
Checkmarx is rated high in our evaluation. Both are paid.
What are Checkmarx and Nessus used for?
Checkmarx: Application security testing platform. Nessus: Vulnerability assessment scanner.
What does Checkmarx cost vs Nessus?
Checkmarx is a paid tool. Nessus is a paid tool. Visit their websites for detailed pricing.