Cobalt DAST vs Rexsser: side-by-side comparison (2026)
Cobalt DAST is a commercial dynamic application security testing solution by Cobalt. Rexsser is a free dynamic application security testing solution. Features, integrations, deployment and the company behind each one, side by side.
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Automated DAST tool for continuous web app and API vulnerability scanning.
A Burp Suite plugin that extracts keywords from HTTP responses using regex patterns and tests for reflected XSS vulnerabilities within the target scope.
Side-by-side comparison
Feature
Cobalt DAST
Rexsser
Pricing model
Commercial
Free
Category
Dynamic Application Security Testing
Dynamic Application Security Testing
Deployment and fit
Deployment type
Cloud
On-Premises
Company size fit
SMB, Mid-Market, Enterprise
Startup, SMB, Mid-Market, Enterprise
Open source
GitHub stars
–
75
Last commit
–
Nov 2020
Company
Company
Cobalt
–
Use cases and capabilities
DAST
Yes
No
Web Security
Yes
No
Continuous Testing
Yes
No
App Security
Yes
No
Security Scanning
Yes
No
DevSecOps
Yes
No
Open Source
No
Yes
XSS
No
Yes
XSS Scanner
No
Yes
Regex
No
Yes
Core features
8 features listed
No features listed
Integrations
10 integrations listed
No integrations listed
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