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.
Affiliate disclosure: Some links may be affiliate or partner links. If you sign up through one, we may earn a commission at no extra cost to you. This never changes our scores or rankings. Learn more.
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 | flat |
| 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 flat 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.
