GL Grafana Loki vs PR Prometheus
Compare Grafana Loki vs Prometheus features, pricing, and performance metrics side-by-side to find the optimal platform for your engineering workflow.
Quick Verdict
Grafana Loki excels at log aggregation and dashboards; Prometheus wins on built-in capabilities. Choose Grafana Loki if you prioritize log aggregation and dashboards; choose Prometheus if you need built-in capabilities.
Grafana Loki vs Prometheus Feature Comparison
| Feature | Grafana Loki | Prometheus |
|---|---|---|
| Log Aggregation | Supported Yes Centralized log aggregation with LogQL | Not supported No |
| Full-Stack APM | Not supported No Log aggregation only, not full APM | Not supported No |
| Dashboards | Supported Yes Native Grafana integration for dashboards | Not supported No |
| Alerting | Supported Yes Log-based alerting rules | Not supported No |
| Metrics | Supported Yes Label-based indexing (cost-efficient) | Not supported No |
| Query Language | Supported Yes Prometheus-compatible query language (LogQL) | Not supported No |
| Horizontal Scaling | Supported Yes Horizontal scaling via object storage | Not supported No |
| Multi-Tenancy | Supported Yes Multi-tenant log isolation | Not supported No |
| Integrations | Supported Yes Grafana, Prometheus, Tempo integrations | Not supported No |
| Storage Backends | Supported Yes Object storage backends (S3, GCS, Azure, MinIO) | Not supported No |
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About Grafana Loki
Disclosure: We may earn a commission if you click any of these links and make a purchase, at no additional cost to you. This does not influence our reviews.
Grafana Loki is a log aggregation system designed to be cost-effective and Prometheus-compatible. Unlike Elasticsearch, Loki indexes only labels (not full text), making it dramatically cheaper to operate. Integrates natively with Grafana for visualization and Prometheus for correlation. Supports LogQL query language, alerting, and retention policies.
About Prometheus
Disclosure: We may earn a commission if you click any of these links and make a purchase, at no additional cost to you. This does not influence our reviews.
Prometheus is an open-source systems monitoring and alerting toolkit originally built at SoundCloud. It collects metrics via pull model, stores them in a time-series database, and supports PromQL for querying. Features include alerting via Alertmanager, service discovery, and federation. The standard for Kubernetes monitoring.
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