Graylog license history

Observability·Last verified 2026-10-28·Confidence: High

Changed from GPL-3.0-only to SSPL-1.0 starting with 4.0.0 on 2021-02-04.

Versions before 4.0.0 remain under GPL-3.0-only.

Self-hosting
Allowed
Offering as a managed service (SaaS)
Restricted
Commercial impact: Restricted

This is our summary of the license text and may contain errors or omissions. Check the original sources before you decide. Disclaimer and corrections → · Spot an error? Report it

License timeline

2021-02-04

From 4.0.0

Restricted
Self-hosting: Allowed
Offering as a managed service (SaaS): Restricted

Graylog relicensed to SSPL-1.0.

Verified 2026-10-28·Confidence: High

Originally released under GPL-3.0-only

For reference only. Not legal advice. How a license applies depends on your use; the license text and your counsel decide. Methodology and disclaimer →

Get alerts for Graylog

We email you if Graylog changes its license again.

Check the box above to show the Google sign-in button.