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Cardamon is a cleanup tool for Prometheus that collects unused metrics from Grafana and Prometheus and generates drop statements for them.

111 starsGo

I built a tool that finds unused Prometheus metrics

by dhei123·May 25, 2026·2 points·2 comments

AI Analysis

●●SolidSolve My ProblemNiche Gem

Cross-references query logs, rules, and Grafana to find unused metrics.

Strengths
  • Correlates three data sources: query logs, rules API, and Grafana dashboards
  • Generates ready-to-use Prometheus drop relabeling rules
  • Web UI for exploring and filtering unused metrics before cleanup
Weaknesses
  • Requires access to Prometheus query logs which may not be enabled by default
  • Limited to Prometheus and Grafana ecosystems
Target Audience

DevOps engineers and SREs running Prometheus at scale

Similar To

promtool · Prometheus native tooling

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