Arachni vs Fortra BeSTORM: Side-by-Side Comparison (2026)
Features, pricing, ratings, and pros and cons, compared head to head.
Arachni is a free dynamic application security testing tool. Fortra BeSTORM is a commercial dynamic application security testing tool by Fortra. Compare features, ratings, integrations, and community reviews side by side to find the best dynamic application security testing fit for your security stack. Independent and vendor-neutral: our scores and rankings are earned, never bought — sponsored placement is always labeled.
CST VerdictShort answer
Security teams evaluating open-source DAST tools for regression testing in CI/CD pipelines will find Arachni's low operational overhead and zero licensing friction valuable, especially when scanning your own applications repeatedly. The framework's modular architecture and scripting capabilities let you customize checks for legacy systems that commercial scanners often ignore. Skip this if you need managed scanning, compliance reporting templates, or a vendor to call when false positives spike; Arachni requires in-house expertise to tune effectively and produces raw vulnerability data you'll need to contextualize yourself. Enterprise and mid-market security teams with mature CI/CD pipelines will get the most from Fortra BeSTORM because its black box fuzzing approach catches logic flaws and authentication bypasses that static scanners routinely miss during pre-deployment testing. The tool's hybrid deployment model and alignment with NIST ID.RA (risk assessment) means it integrates cleanly into existing risk workflows without forcing rip-and-replace decisions. Skip this if your organization runs heavy manual penetration testing or lacks the engineering bandwidth to tune fuzzing parameters; BeSTORM demands active tuning to avoid noise, and passive buyers end up drowning in low-confidence findings.
Based on our analysis of core features, company size fit, deployment model, here is our conclusion:
