DeepSource vs Checkmarx: Which Should You Choose in 2026?
Choosing between DeepSource 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:
DeepSource
Static analysis for code quality and security
Best for you if:
- • You want the higher-rated option (8.2/10 vs 7.8/10)
- • You want to try before committing
- • DeepSource is an automated code review tool that finds and fixes code quality issues
- • It analyzes code for bugs, anti-patterns, and security issues with auto-fix capabilities
Checkmarx
Application security testing platform
Best for you if:
- • 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 |  DeepSource |  Checkmarx |
|---|---|---|
Price | Free + Paid | Paid |
Best For | Code Review | Code Review |
Rating | 82/100 | 78/100 |
| Feature | DeepSource | Checkmarx |
|---|---|---|
| Pricing Model | Freemium | Paid |
| Editorial Score | 82 | 78 |
| Community Rating | No ratings yet | No ratings yet |
| Total Reviews | 0 | 0 |
| Community Upvotes | 0 | 0 |
| Categories | Code ReviewTesting & QA | Code ReviewTesting & QA |
How DeepSource and Checkmarx Compare
DeepSource
Static analysis for code quality and security
Free tier available · 82/100 score
Checkmarx
Application security testing platform
Paid · 78/100 score
Who Should Use What?
On a budget?
DeepSource has a free tier. Checkmarx is paid only.
Go with: DeepSource
Want the highest-rated option?
DeepSource: 82/100. Checkmarx: 78/100.
Go with: DeepSource
Value user reviews?
Neither has user reviews yet.
Go with: DeepSource
3 Questions to Help You Decide
What's your budget?
DeepSource is freemium. Checkmarx is paid. DeepSource lets you start free.
What's your use case?
Both are code review tools. Compare their specific features to decide.
How important are ratings?
DeepSource scores higher: 82/100 vs 78/100.
Key Takeaways
DeepSource
- Higher score: 82/100 vs 78
- Free tier available
- Our pick for this comparison
Checkmarx
The Bottom Line
DeepSource (82/100) is our pick.
Frequently Asked Questions
Is DeepSource or Checkmarx better?
DeepSource scores 82/100 in our evaluation. DeepSource is freemium and Checkmarx is paid.
What are DeepSource and Checkmarx used for?
DeepSource: Static analysis for code quality and security. Checkmarx: Application security testing platform.
What does DeepSource cost vs Checkmarx?
DeepSource is freemium (free tier + paid plans). Checkmarx is a paid tool. Visit their websites for detailed pricing.