Best SIEM Software · 2026
Graylog Security vs 
Wazuh Graylog Security vs Wazuh: on our data-weighted scoring, Wazuh edges ahead (8.3 vs 8.1/10). Graylog Security starts at $18000/yr (Security, 10 GB/day) and is best for teams wanting siem-grade threat detection without splunk-level cost or complexity; Wazuh starts at $571/mo (Cloud, up to 100 agents) and is best for teams wanting a free, open-source siem/xdr they can self-host (or run as managed cloud). Choose Wazuh for the stronger overall track record; consider Graylog Security if its pricing model or fit matches your environment better. Side-by-side table below.
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Six criteria, each scored 0–10 on the same scale from real review data, public pricing and feature coverage. See our methodology →
| Criterion | Graylog Security | Wazuh |
|---|---|---|
| Editorial | 8.1 | 8.3 |
| User reviews | 8.8 | 9.0 |
| Adoption | 5.5 | 4.7 |
| Affordability | 9.5 | 9.5 |
| Feature breadth | 6.0 | 7.0 |
| Ease of trial | 10.0 | 10.0 |
| Graylog Security | Wazuh | |
|---|---|---|
| Starting price | $18000/yr (Security, 10 GB/day) | $571/mo (Cloud, up to 100 agents) |
| Pricing model | per gb | per agent |
| Free trial / tier | Free tier + 14 days | Free tier + 14 days |
| Best for | Teams wanting SIEM-grade threat detection without Splunk-level cost or complexity | Teams wanting a free, open-source SIEM/XDR they can self-host (or run as managed cloud) |
| Deployment | Cloud + self-host | Cloud + self-host |
| G2 rating | 4.4/5 (116) | 4.5/5 (59) |
| Capterra rating | — | — |
| Our score | 8.1 | 8.3 |
You need teams wanting siem-grade threat detection without splunk-level cost or complexity.
You need teams wanting a free, open-source siem/xdr they can self-host (or run as managed cloud).
Wazuh bills on a per agent model from $571/mo (Cloud, up to 100 agents) (free tier available), while Graylog Security uses a per gb model from $18000/yr (Security, 10 GB/day) (free tier available). Because the models differ, the cheaper option flips depending on your fleet size — model both at your seat/endpoint count.
Wazuh ships 7 headline capabilities (Open-source SIEM + XDR, Log analysis + file integrity monitoring, Vulnerability detection, Regulatory compliance (PCI) and deploys Cloud + self-host. Graylog Security ships 6 (Free open-source tier, SIEM with MITRE ATT&CK mapping, Sigma rules + UEBA + risk scoring, Pipeline-based enrichment), deploying Cloud + self-host.
Wazuh holds 4.5/5 (~59 G2 reviews); Graylog Security holds 4.4/5 (~116 G2 reviews). On our data-weighted score, Wazuh edges ahead (8.3 vs 8.1/10). Pick Graylog Security instead when teams wanting siem-grade threat detection without splunk-level cost or complexity. See Wazuh alternatives or Graylog Security alternatives.