Fortra BeSTORM vs PortSwigger: side-by-side comparison (2026)
Fortra BeSTORM is a commercial dynamic application security testing solution by Fortra. PortSwigger is a free dynamic application security testing solution by PortSwigger Ltd. Features, integrations, deployment and the company behind each one, side by side.
Black box fuzzer and DAST product for application security testing
A comprehensive toolkit for web application security testing, offering a range of products and solutions for identifying vulnerabilities and improving security posture.
Side-by-side comparison
Feature
Fortra BeSTORM
PortSwigger
Pricing model
Commercial
Free
Category
Dynamic Application Security Testing
Dynamic Application Security Testing
Deployment and fit
Deployment type
Hybrid
Cloud
Company size fit
Mid-Market, Enterprise
Startup, SMB, Mid-Market, Enterprise
Company
Company
Fortra
PortSwigger Ltd.
Use cases and capabilities
DAST
Yes
No
Fuzzing
Yes
No
Black Box Testing
Yes
No
Protocol Analysis
Yes
No
Critical Infrastructure
Yes
No
Bug Bounty
No
Yes
Web Security
No
Yes
App Security
No
Yes
Core features
- 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
No features listed
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