Graylog
Open-source log management and SIEM platform with intuitive analytics
ToolSIEM & Security AnalyticsCloud, Self-hosted, Open source
Pricing: Free source-available "Open" tier; paid plans Enterprise from $15,000/yr, Security and API Security from $18,000/yr (consumption-based, contact sales for a quote)
Reviewed by the Cyber Vendor Guide editorial team against the public sources cited below · Last reviewed February 2026 · How we review listings
What is Graylog?
Graylog is an open-source log management and SIEM platform designed for collecting, indexing, and analyzing log data at scale. Its centralized log management approach combined with security analytics capabilities makes it a cost-effective alternative to enterprise SIEMs. Graylog offers a streamlined, intuitive interface and a powerful pipeline processing engine for data enrichment and normalization.
Best for: Teams needing cost-effective log management with SIEM capabilities and an intuitive user experience
Pros
- Open-source core with generous free tier
- Intuitive UI with lower learning curve than Splunk
- Efficient resource utilization and storage
- Strong pipeline processing for data transformation
- Predictable per-node licensing
Things to check
- Smaller community and ecosystem than Splunk or Elastic
- Security features less mature than dedicated SIEMs
- Limited out-of-the-box security content
- Enterprise features require paid license
Reported in public reviews and vendor documentation. See sources below.
Key Features
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Sources & references
Where the information on this listing comes from. Always verify pricing and capabilities against the vendor before a purchasing decision.
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Key facts
- Pricing
- Free source-available "Open" tier; paid plans Enterprise from $15,000/yr, Security and API Security from $18,000/yr (consumption-based, contact sales for a quote)
- Model
- Per-node licensing (Operations and Security tiers)
- Founded
- 2011
- Cloud
- Yes
- Self-hosted
- Yes
- Open source
- Yes
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