View all SIEM Alternatives
Best Free Alternatives to AlienVault USM
Stop paying $1000/mo. Discover professional-grade tools that won't break your budget.
Category: SIEMVerified for 2025
Top Recommended Replacements
Security Onion
FREETop Free Alternative
Why we like it
Completely free or has a generous free tier.
Keep in mind
May lack some enterprise features.
Graylog
FREERunner Up
Why we like it
Great features and widely used.
Keep in mind
Interface might be different.