Grafana vs Sentry: what their users struggle with

Not a verdict and not a star rating: the problems users of Grafana and Sentry describe in public, side by side, each one linked to its source (as of 2026-10-15).

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Every count in this table is of open reports in the recent window (Grafana since 2023-10, Sentry since 2023-10); older and fixed reports are not counted. The counts measure how much public discussion exists for each product, not which is better: a popular tool collects more reports.

Problems mostly raised about Grafana

• Ad hoc data exploration in Grafana feels cramped versus Datadog · UI & usability · Annoyance
• Poorly documented path from OpenTelemetry data to Grafana dashboards · Documentation · Annoyance
• Hard to find the right metrics among inconsistently named node exporter series · UI & usability · Annoyance
• Color-only cues in Grafana dashboards are hard for a color-blind engineer · UI & usability · Blocks work
• XY Chart color examples do not match their descriptions · Documentation · Annoyance

Problems mostly raised about Sentry

• Number of Errors alert never fires although conditions are met · Reliability & bugs · Blocks work
• Move to restrictive license seen as hurting Sentry's open source claims · Other · Annoyance
• Sentry browser telemetry blocks doing work with blockers on · Permissions & security · Annoyance
• New Sentry terms of service allow machine learning training use · Permissions & security · Annoyance
• New Slack issue alerts take up much more screen space · Customization · Annoyance

Go further

Open Grafana and Sentry in the compare tool to filter by area and severity, Grafana alternatives, Sentry alternatives, or the state of observability and monitoring.

How the data is built. A theme is a group of reports about the same problem; unique means not matched to a theme on the other product.