Best Self-Hosted AWS GuardDuty Alternatives in 2026
AWS GuardDuty is a threat detection service that monitors AWS accounts and workloads for malicious activity.
2 Self-Hosted Alternatives to AWS GuardDuty
Nuclei
28KYAML-template-driven vulnerability scanner with 8,000+ community templates for CVEs, misconfigurations, and exposed panels — free for core scanning.
Cloudquery
6.3KFor security & authentication, Cloudquery is a self-hosted solution that provides ELT platform that enables easy data integration from hundreds of cloud and...
Why Look for AWS GuardDuty Alternatives?
AWS GuardDuty is a threat detection service that monitors AWS accounts and workloads for malicious activity.
Self-hosted alternatives give you full data ownership, predictable costs, and zero vendor lock-in. You run the software on your own infrastructure and control everything.
2 Best Open-Source Alternatives to AWS GuardDuty
Nuclei
Customizable vulnerability scanner using YAML DSL. — 27,475 GitHub stars. Licensed under MIT.
Cloudquery
Sync data from any source to any destination. — 6,345 GitHub stars. Licensed under MPL-2.0.
Why Self-Host Instead of AWS GuardDuty?
- Data ownership. Your data stays on your server, not on AWS GuardDuty’s infrastructure.
- Predictable costs. Pay a fixed VPS cost instead of growing per-user or per-usage fees.
- No vendor lock-in. Export and migrate your data anytime. You control the database.
- GDPR and compliance. Hosting your own tools simplifies data residency and compliance requirements.
Why teams switch from AWS GuardDuty
- → Data ownership. Your data stays on your server -- not on AWS GuardDuty's infrastructure.
- → Predictable costs. Pay a fixed VPS cost instead of growing per-user or per-usage fees.
- → No vendor lock-in. Export and migrate your data anytime. You control the database.
- → GDPR and compliance. Hosting your own tools simplifies data residency and compliance requirements.
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