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TL;DR - Loki
- Loki is an open-source log aggregation system designed for Grafana
- It indexes metadata instead of full text for cost-effective log storage
- Free and open-source, Cloud version in Grafana Cloud
Pricing: Free forever
Best for: Individuals & startups
Pros & Cons
Pros
- Grafana-native logging
- Cost-effective at scale
- Label-based indexing
- Good for Kubernetes
- Simple architecture
Cons
- Less features than Elasticsearch
- Query language different
- Full-text search limited
- Learning curve
- Some scale limitations
Key Features
Log aggregationPrometheus-likeLabelsCost efficientGrafanaOpen source
Pricing Plans
Most Popular
Free
Free
Open source
- Log aggregation
- Label-based
- Grafana native
- Low cost
About Loki
By Toolradar Team·
Loki stores logs for Grafana with efficiency. Like Prometheus but for logs—log aggregation designed for cost-effective storage and Grafana integration.
The storage is efficient. The Grafana integration is native. The model matches Prometheus.
Grafana users needing log storage choose Loki for logs that integrate naturally.
Reviews
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Loki FAQ
Is Loki free?
Loki is free and open source from Grafana Labs. Grafana Cloud includes a free tier for Loki logs.
What is Loki?
Loki is a log aggregation system designed to work with Grafana. Unlike Elasticsearch, it only indexes labels making it much cheaper to run at scale.
Loki vs Elasticsearch?
Loki is simpler and more cost-effective, indexing only labels. Elasticsearch offers full-text search but costs more. Loki is great for Grafana users who want affordable logging.
Source: grafana.com