Skip to content

What is Loki?

Loki (data visualization): Log aggregation by Grafana Labs. 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. Loki is free to use with no paid tier. Buyers most often compare Loki against Logstash, Loggly, Logz.io.

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
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

Be the first to review Loki

Your take helps the next buyer. Verified LinkedIn reviewers get a badge.

Write a review

Best Loki Alternatives

Top alternatives based on features, pricing, and user needs.

View full list →

Explore More

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