Arachni vs Fortra BeSTORM: side-by-side comparison (2026)
Arachni is a free dynamic application security testing solution. Fortra BeSTORM is a commercial dynamic application security testing solution by Fortra. Features, integrations, deployment and the company behind each one, side by side.
An open-source web application security scanner framework that identifies vulnerabilities in web applications.
Black box fuzzer and DAST product for application security testing
Side-by-side comparison
Feature
Arachni
Fortra BeSTORM
Pricing model
Free
Commercial
Category
Dynamic Application Security Testing
Dynamic Application Security Testing
Deployment and fit
Deployment type
On-Premises
Hybrid
Company size fit
Startup, SMB, Mid-Market
Mid-Market, Enterprise
Company
Company
–
Fortra
Use cases and capabilities
Web Security
Yes
No
App Security
Yes
No
DAST
No
Yes
Fuzzing
No
Yes
Black Box Testing
No
Yes
Protocol Analysis
No
Yes
Critical Infrastructure
No
Yes
Core features
No features listed
- Black box fuzzing without source code access
- Automated malformed input generation and injection
- Protocol and API security testing
- Vulnerability detection including buffer overflows and format string errors
- Support for a wide range of protocols and application interfaces
- Pre-release application security validation
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