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Filter by platform, license text, maturity, maintenance cadence, and editorial tags like privacy-focused or self-hosted. Search matches names, summaries, tags, and use cases.

Wazuh

Top pick

Open security platform combining SIEM, XDR, file integrity monitoring, and compliance checks across endpoints and cloud.

siemxdrcompliancemonitoringself-hosted

Security & Privacy

Sigma

Also strong

Generic signature format for SIEM/detection rules convertible to Splunk, Elastic, KQL, and many backends.

detectionsiemrulesthreat-huntingyaml

Security & Privacy

Security Onion

Also strong

Linux distribution and platform bundling Zeek, Suricata, Elastic stack, and analyst UIs for NSM and log hunting.

socnsmsiemdistrotraining