RuboCop vs Checkmarx: Which Should You Choose in 2026?
Choosing between RuboCop and Checkmarx 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.
By Toolradar Team · Last updated February 28, 2026 · Methodology
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
RuboCop
Ruby static code analyzer and formatter
Best for you if:
- • You want the higher-rated option (8.0/10 vs 7.8/10)
- • You need something completely free
- • You need ide & code editors features specifically
- • RuboCop is a Ruby linter and code formatter enforcing style guidelines
- • It checks code against the Ruby Style Guide with auto-correction
Checkmarx
Application security testing platform
Best for you if:
- • 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
| At a Glance |  RuboCop |  Checkmarx |
|---|---|---|
Price | Free | Paid |
Best For | IDE & Code Editors | Code Review |
Rating | 80/100 | 78/100 |
| Feature | RuboCop | Checkmarx |
|---|---|---|
| Pricing Model | Free | Paid |
| Editorial Score | 80 | 78 |
| Community Rating | No ratings yet | No ratings yet |
| Total Reviews | 0 | 0 |
| Community Upvotes | 0 | 0 |
| Categories | IDE & Code EditorsCode Review | Code ReviewTesting & QA |
How RuboCop and Checkmarx Compare
RuboCop
Ruby static code analyzer and formatter
Free · 80/100 score
Checkmarx
Application security testing platform
Paid · 78/100 score
RuboCop is a ide & code editors tool. Checkmarx is in code review.
Who Should Use What?
On a budget?
RuboCop is free. Checkmarx is paid.
Go with: RuboCop
Want the highest-rated option?
RuboCop: 80/100. Checkmarx: 78/100.
Go with: RuboCop
Value user reviews?
Neither has user reviews yet.
Go with: RuboCop
3 Questions to Help You Decide
What's your budget?
RuboCop is free. Checkmarx is paid. Go with RuboCop if free matters most.
What's your use case?
RuboCop is a ide & code editors tool. Checkmarx is in code review. Pick the category that matches your needs.
How important are ratings?
RuboCop scores higher: 80/100 vs 78/100.
Key Takeaways
RuboCop
- Higher score: 80/100 vs 78
- Completely free
- Our pick for this comparison
Checkmarx
- Better fit for code review
The Bottom Line
RuboCop (80/100) is our pick.
Frequently Asked Questions
Is RuboCop or Checkmarx better?
RuboCop scores 80/100 in our evaluation. RuboCop is free and Checkmarx is paid.
What are RuboCop and Checkmarx used for?
RuboCop: Ruby static code analyzer and formatter. Checkmarx: Application security testing platform.
What does RuboCop cost vs Checkmarx?
RuboCop is completely free. Checkmarx is a paid tool. Visit their websites for detailed pricing.