Free cybersecurity in the Top 11
3 providers in the Top 11 Microsoft Sentinel vs Splunk Enterprise Security vs CrowdStrike Falcon Next-Gen SIEM: 11 Best SIEM Software 2026 offer a free tier; the most credible is Elastic Security.
Why this answer
Filtered to entries with a published free tier (not just a free trial). When the pricing page is ambiguous we err conservative — paid-only by default.
Showing all 3 matches. Top 11 publishes whatever the data supports — we don’t pad lists. See the full ranked Microsoft Sentinel vs Splunk Enterprise Security vs CrowdStrike Falcon Next-Gen SIEM: 11 Best SIEM Software 2026.
#1Elastic Security(rank #5 in Microsoft Sentinel vs Splunk Enterprise Security vs CrowdStrike Falcon Next-Gen SIEM: 11 Best SIEM Software 2026)
Free tierSearch-driven SIEM at lower data cost.
Full Elastic Security review · Compare: Elastic Security vs Sumo Logic · Alternatives
#2Sumo Logic(rank #9 in Microsoft Sentinel vs Splunk Enterprise Security vs CrowdStrike Falcon Next-Gen SIEM: 11 Best SIEM Software 2026)
Free tierCloud SIEM sharing a platform with log analytics.
#3Wazuh(rank #11 in Microsoft Sentinel vs Splunk Enterprise Security vs CrowdStrike Falcon Next-Gen SIEM: 11 Best SIEM Software 2026)
Free tierFree open-source SIEM and XDR you host yourself.
Methodology: /methodology · No paid placement ever · Verified .