Best Self-Hosted Greynoise Alternatives in 2026
GreyNoise is a cybersecurity intelligence platform that identifies benign internet scanners to reduce alert noise.
1 Self-Hosted Alternative to Greynoise
Why Look for Greynoise Alternatives?
GreyNoise is a cybersecurity intelligence platform that identifies benign internet scanners to reduce alert noise.
Self-hosted alternatives give you full data ownership, predictable costs, and zero vendor lock-in. You run the software on your own infrastructure and control everything.
1 Best Open-Source Alternative to Greynoise
CrowdSec
Open-source, participative protection against malicious IPs. — 12,797 GitHub stars. Licensed under MIT.
Why Self-Host Instead of Greynoise?
- Data ownership. Your data stays on your server, not on Greynoise’s infrastructure.
- Predictable costs. Pay a fixed VPS cost instead of growing per-user or per-usage fees.
- No vendor lock-in. Export and migrate your data anytime. You control the database.
- GDPR and compliance. Hosting your own tools simplifies data residency and compliance requirements.
Why teams switch from Greynoise
- → Data ownership. Your data stays on your server -- not on Greynoise's infrastructure.
- → Predictable costs. Pay a fixed VPS cost instead of growing per-user or per-usage fees.
- → No vendor lock-in. Export and migrate your data anytime. You control the database.
- → GDPR and compliance. Hosting your own tools simplifies data residency and compliance requirements.
Browse more Security & Authentication tools
Explore 159 open-source security & authentication tools you can self-host.
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