# CSP Auditor vs Fortra BeSTORM: side-by-side comparison (2026)

[CSP Auditor](https://cybersectools.com/tools/csp-auditor) is a free [dynamic application security testing](https://cybersectools.com/categories/dast) solution. [Fortra BeSTORM](https://cybersectools.com/tools/fortra-bestorm) is a commercial [dynamic application security testing](https://cybersectools.com/categories/dast) solution by [Fortra](https://cybersectools.com/companies/fortra). Features, integrations, deployment and the company behind each one, side by side.

Need the answer fast? [Best DAST Solutions for Business](https://cybersectools.com/shortlists/best-dast-solutions) picks PortSwigger Burp Suite DAST, Invicti DAST, Rapid7 InsightAppSec and 4 more.

## Side-by-side comparison

| | CSP Auditor | Fortra BeSTORM |
|---|---|---|
| Pricing model | Free | Commercial |
| Category | Dynamic Application Security Testing | Dynamic Application Security Testing |
| Verified | No | Verified |
| Deployment type | On-Premises | Hybrid |
| Company size fit | Startup, SMB, Mid-Market, Enterprise | Mid-Market, Enterprise |
| GitHub stars | 141 | – |
| Last commit | Apr 2020 | – |
| Company | – | Fortra |
| Headquarters | – | – |

### Use cases and capabilities

| | CSP Auditor | Fortra BeSTORM |
|---|---|---|
| Content Security Policy | Yes | – |
| DAST | – | Yes |
| Fuzzing | – | Yes |
| Black Box Testing | – | Yes |
| Protocol Analysis | – | Yes |
| Critical Infrastructure | – | Yes |

### Core features

**CSP Auditor**

No features listed.

**Fortra BeSTORM**

- 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

## Which one fits you

Based on what each listing shows: deployment, company size, price and open source.

- [CSP Auditor](https://cybersectools.com/tools/csp-auditor) fits if you need to run it on your own servers, you are a startup or a small business, you need a free product and you want an open-source product.
- [Fortra BeSTORM](https://cybersectools.com/tools/fortra-bestorm) fits if you need both cloud and on-premises options.

## CSP Auditor vs Fortra BeSTORM FAQ

Common questions when comparing CSP Auditor vs Fortra BeSTORM for dynamic application security testing.

### What is the difference between CSP Auditor and Fortra BeSTORM?

**CSP Auditor**: A plugin for viewing, detecting weak configurations, and generating Content Security Policy headers.

**Fortra BeSTORM**: Black box fuzzer and DAST product for application security testing. Built by Fortra. Core capabilities include Black box fuzzing without source code access, Automated malformed input generation and injection, Protocol and API security testing.

The table above shows where their features, integrations, deployment and company size fit differ.

### Who makes CSP Auditor and Fortra BeSTORM?

**CSP Auditor** is open-source with 141 GitHub stars. **Fortra BeSTORM** is made by Fortra. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is CSP Auditor a good alternative to Fortra BeSTORM?

Often, yes. CSP Auditor and Fortra BeSTORM are both Dynamic Application Security Testing products. Key differences: CSP Auditor is Free while Fortra BeSTORM is Commercial, CSP Auditor is open-source. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [CSP Auditor vs Rapid7 InsightAppSec](https://cybersectools.com/compare/csp-auditor-vs-rapid7-insightappsec)
- [CSP Auditor vs DerScanner Dynamic Application Security Testing (DAST)](https://cybersectools.com/compare/csp-auditor-vs-derscanner-dynamic-application-security-testing-dast)
- [CSP Auditor vs Mayhem Code Security](https://cybersectools.com/compare/csp-auditor-vs-mayhem-code-security)
- [Fortra BeSTORM vs Rapid7 InsightAppSec](https://cybersectools.com/compare/fortra-bestorm-vs-rapid7-insightappsec)
- [Fortra BeSTORM vs DerScanner Dynamic Application Security Testing (DAST)](https://cybersectools.com/compare/derscanner-dynamic-application-security-testing-dast-vs-fortra-bestorm)
- [Fortra BeSTORM vs Mayhem Code Security](https://cybersectools.com/compare/fortra-bestorm-vs-mayhem-code-security)

## Alternatives to each

- [See all CSP Auditor alternatives](https://cybersectools.com/alternatives/csp-auditor)
- [See all Fortra BeSTORM alternatives](https://cybersectools.com/alternatives/fortra-bestorm)

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Source: https://cybersectools.com/compare/csp-auditor-vs-fortra-bestorm

For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/csp-auditor.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md.

More on CSP Auditor and Fortra BeSTORM: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=compare-md