# Grafana Loki

> Log aggregation + LogQL

**Subcategory:** Grafana  
**License:** Apache-2.0  
**Source:** https://github.com/grafana/skills/blob/main/skills/grafana-lgtm/loki/SKILL.md

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## When it is useful

Log aggregation + LogQL.

## The Catch

Frontmatter loki. Indexes labels not full text (not Elastic/OpenSearch). Distinct from Elastic BN. OSS self-host AGPL $0; Cloud Free 50GB ingest / 14d.