beSTORM

At a glance

• Editor score
  7.9 / 10
• Pricing
  Pricing on request
• Best for
  Black-box protocol and binary testing
• Input generation methods
  generation
• Facts checked
  20 Sep 2026

• Where it wins

  • Tests without source-code access across varied target types
  • Combines prioritized attacks with exhaustive test-space exploration
  • Supports Auto Learning, scaling, monitoring, and exportable reports

• Where it doesn't

  • Quote-based pricing requires contacting sales
  • Its broad scope may exceed the needs of narrow testing workflows
  • White-box testing is not its primary approach

Our verdict on beSTORM

beSTORM is a black-box fuzzer and dynamic application security testing tool for security, QA, and development teams evaluating software, hardware, protocols, and products before deployment. It supports testing of network and proprietary protocols, file formats, hardware, DLLs, APIs, and binary applications without source-code access. Its Windows and Linux availability fits teams working across common desktop and server environments, while the product documentation also describes on-site and cloud-based operation.

The standout capability is breadth combined with structured exploration. beSTORM offers prioritized attack selection and exhaustive combinations across the test space, with more than 250 prebuilt protocol and module options. Auto Learning is intended for proprietary or augmented protocols, helping teams address inputs that are not covered by standard modules. Multi-processor or multi-machine scaling supports larger testing workloads, while monitoring covers buffer overflows, format-string issues, and memory exceptions. Actionable, exportable vulnerability reports give security and development teams material for investigation and remediation.

Pricing is quote-based, so organizations should expect a sales-led evaluation rather than a published plan comparison. beSTORM is a strong fit for teams that need black-box coverage across several input types, especially where protocol learning, crash triage, and scalable execution matter. It may be more than necessary for a narrowly focused workflow limited to one protocol or a small set of file inputs. Teams that specifically require source-code-driven white-box analysis should consider a tool designed around that approach instead.

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beSTORM pricing

beSTORM fact sheet

Alternatives to beSTORM

• MayhemMayhem brings broad hybrid fuzz testing, triage, and regression coverage to CI workflows.9.4
• OSS-FuzzA cloud-based continuous fuzzing service for qualifying open-source projects.9.2
• ClusterFuzzA broad, self-managed fuzzing platform for continuous security and stability testing.8.9

See all beSTORM alternatives →

Featured on iTechGuides

beSTORM is listed in our Fuzz Testing Software directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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Last updated 7 Oct 2026 · How we research and update