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Best Free Alternatives to LogRhythm (Exabeam)
Stop paying $30,000+ per year (Enterprise). Discover professional-grade tools that won't break your budget.
Category: SIEM / SecOpsVerified for 2025
Top Recommended Replacements
Wazuh
FREEBest Overall Alternative
Why we like it
The gold standard for Open Source Security; combines SIEM (Log Analysis) with XDR (Endpoint Detection); 100% free; massive community support; features File Integrity Monitoring (FIM) and Vulnerability Detection out of the box.
Keep in mind
Requires Linux expertise to deploy and tune; you are responsible for your own storage infrastructure.
Security Onion
FREEBest for Network Monitoring
Why we like it
A Linux distribution that bundles the best open-source tools (Wazuh, Suricata, Zeek, CyberChef) into one ready-to-use SOC platform; incredible for deep-packet inspection and network forensics.
Keep in mind
Resource hungry (needs heavy hardware); steeper learning curve than a managed SaaS SIEM.
Elastic Security (ELK)
FREEBest for Customization
Why we like it
The engine behind many other SIEMs; offers the most powerful search and visualization (Kibana) in the industry; 'Basic' license is free and includes many SIEM features.
Keep in mind
The best security features (Machine Learning, Alarm Management) are often locked behind the paid 'Platinum' tier.
Graylog
FREEBest for Log Management
Why we like it
Easier to set up than ELK; excels at parsing and searching massive volumes of logs; 'Graylog Open' is free; great for IT Ops teams that also need security visibility.
Keep in mind
The dedicated 'Security' features (Graylog Security) are paid/enterprise only.
Blumira
FREEBest for SMBs
Why we like it
A 'SIEM for non-experts'; extremely easy setup (cloud-based); the 'Free' edition covers Microsoft 365 logs, making it perfect for small businesses needing basic compliance.
Keep in mind
Less customizable than Wazuh; data retention on free tier is short.
Velociraptor
FREEBest for Digital Forensics
Why we like it
Allows you to 'hunt' across thousands of endpoints instantly; query your entire fleet like a database (e.g., 'Find all computers with this specific malicious file'); unmatched for Incident Response.
Keep in mind
It is a hunting tool, not a full historical log archive (needs to be paired with a SIEM).
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