OWASP Four Clover

At a glance

• Editor score
  5.9 / 10
• Pricing
  Free plan
• Best for
  Basic open-source command-line FIM
• Free plan
  Yes
• Paid from
  Free
• Facts checked
  21 Sep 2026

• Where it wins

  • Monitors files, configurations, and critical data
  • Detects unauthorized changes and reports monitored activity
  • Supports security-policy enforcement under Apache License 2.0

• Where it doesn't

  • Alpha-stage software remains under development
  • Command-line operation may not suit teams seeking visual workflows
  • Focused scope may require additional tools for broader security operations

Our verdict on OWASP Four Clover

OWASP Four Clover is an open-source file integrity monitoring tool for security teams that need to track changes to system files, configuration files, and critical data. Its documented capabilities include unauthorized-change detection, configuration monitoring, security-policy enforcement, and reports on monitored changes. Command-line operation makes it a natural fit for technical users who are comfortable working through terminal-based workflows. The project is maintained under the OWASP Foundation and distributed under the Apache License 2.0.

Four Clover’s pricing model is straightforward: it is available as free open-source software. There are no paid plan distinctions to compare, so the main product decision is whether its focused feature set matches the team’s monitoring requirements. Its strongest functional fit is basic file integrity monitoring, particularly where configuration files and critical data need attention alongside ordinary system files. Reports on monitored changes add a useful record for review and policy enforcement, while the command-line format keeps the product centered on direct technical operation.

The main consideration is project maturity. Four Clover is currently described as alpha-stage software under development, so teams should weigh that status when selecting a tool for operational security monitoring. Its narrow focus and command-line model are better suited to users seeking a lightweight, technical FIM project than to organizations looking for a broader platform with a polished administrative experience. Choose Four Clover for free, open-source monitoring of files, configurations, and critical data; consider an alternative when project maturity, broader security coverage, or a different operating workflow is the priority.

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OWASP Four Clover pricing

OWASP Four Clover fact sheet

Alternatives to OWASP Four Clover

• CimTrak Integrity SuiteA broad hybrid integrity suite for organizations managing compliance and infrastructure change.9.4
• Tanium Integrity MonitorEnterprise monitoring with detailed endpoint context, watchlists, and investigation workflows.8.8
• AOAtomic OSSECBroad security coverage with real-time FIM, starting at $5 per server monthly.8.5

See all OWASP Four Clover alternatives →

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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