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Open Source Tools · Alternatives

Open-source alternatives to Microsoft Sentinel

Microsoft Sentinel is Microsoft's cloud-native SIEM and SOAR service on Azure. Self-hosted alternatives trade the managed service for full control of the data: Wazuh is the most common open-source starting point.

Microsoft Sentinel is a commercial product by Microsoft (official site). Category: SIEM, XDR and log management.

Comparison

ToolLicenceStarsLast commitBest for
WazuhGPL-2.0-only AND AGPL-3.0-or-laterOpen source17ktodayOpen-source XDR and SIEM platform
Security OnionElastic-2.0Source-available4.9k1 month agoPlatform for threat hunting and security monitoring

Open-source options

Source-available options

The code is public, but the licence is not approved by the Open Source Initiative. Read the licence before using these commercially.

Product names are trademarks of their owners. ThreatWire is not affiliated with Microsoft. The comparison covers what each tool is designed to do, not a feature-by-feature equivalence.