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Logging comparison · 2026
Grafana Loki and Datadog Logs are remarkably evenly matched in the Logging space, scoring 78 and 78 overall respectively on our radar methodology. Grafana Loki leads on Price / Value (98 vs 55), while Datadog Logs has the edge on Integrations (96 vs 80). The two are closest on Retention, where the gap is just 7 points. Both offer a free tier, making either a low-risk starting point. Use the radar chart and dimension table below to find which fits your specific priorities best.
Grafana Loki
Open-source log aggregation designed for Grafana
78/100
Datadog Logs
Enterprise log management unified with full observability
78/100
Radar comparison
Grafana Loki
78
Datadog Logs
78
Developer UX
SDK setup, query language, and dashboard usability.
Query Performance
Speed of searching and filtering large log volumes.
Retention
How long logs are searchable before being archived.
Price / Value
Cost per GB ingested and free tier generosity.
Alerting
Log-based alert rules and anomaly detection.
Integrations
Log shippers, framework SDKs, and platform integrations.
Overall Score
Grafana Loki and Datadog Logs score identically in our overall RadarTrek assessment — both earn 78/100 across 6 scored dimensions. This is one of the closest logging comparisons in our database. The right choice depends entirely on which specific dimension matters most to your use case — use the dimension breakdown above to compare scores on your priority criterion.
Both Grafana Loki and Datadog Logs offer a free tier, so entry-level cost is not a differentiating factor. Compare the feature and usage limits of each free plan to see which gives you more headroom before a paid upgrade is needed.
Grafana Loki scores higher on Price / Value — 98/100 versus 55/100 for Datadog Logs. If price / value is your primary decision criterion, Grafana Loki is the stronger choice in this head-to-head.
Switching between logging tools is generally possible but involves migration effort: exporting your data or configuration from Grafana Loki, re-importing or reconfiguring in Datadog Logs, and updating any API integrations or environment variables in your codebase. The effort scales with how deeply embedded the tool is in your stack. Test Datadog Logs on a non-production project first before migrating.
Grafana Loki (78/100) is the better fit for teams who prioritise price / value — its strongest dimension — and who want a free entry point. Datadog Logs (78/100) is the better fit for teams who prioritise integrations and want a free entry point. If both dimensions matter equally, the overall score winner (either tool) is the safer default choice.
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