Prometheus vs Loki
Side-by-side comparison of Prometheus and Loki to help you choose the right tool.
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| Feature | Prometheus | Loki |
|---|---|---|
| Pricing | Free | Free / Cloud pricing |
| Rating | ⭐ 4.5/5 | ⭐ 4.4/5 |
| Categories | monitoring-observability | monitoring-observability |
| Time-series DB | ✅ | ❌ |
| PromQL | ✅ | ❌ |
| Alerting | ✅ | ✅ |
| Service discovery | ✅ | ❌ |
| Pull model | ✅ | ❌ |
| Exporters | ✅ | ❌ |
| Log aggregation | ❌ | ✅ |
| Label-based | ❌ | ✅ |
| Grafana integration | ❌ | ✅ |
| LogQL | ❌ | ✅ |
| Multi-tenancy | ❌ | ✅ |
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