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Best Open Source AWS GuardDuty Alternative

A curated collection of the 1 best open source and self-hosted alternatives to AWS GuardDuty in 2026.

Looking for a free, privacy-friendly, or self-hosted replacement for AWS GuardDuty in 2026? The top open-source alternative is ProjectDiscovery — Monitor infrastructure for exploitable vulnerabilities with real-time detection, automated workflows, and zero false positives..

ProjectDiscovery

ProjectDiscovery

★ 30,869

Monitor infrastructure for exploitable vulnerabilities with real-time detection, automated workflows, and zero false positives.

ProjectDiscovery preview

Monitor infrastructure for exploitable vulnerabilities with real-time detection, automated workflows, and zero false positives.

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About AWS GuardDuty

A threat detection service that enables you to monitor and protect your AWS resources and applications.