Nobuf

Prometheus Metrics & Alert Rule Analyzer

Private OpenMetrics workspace

Parse OpenMetrics, inspect cardinality, test common PromQL and review alert rules locally.

openmetrics # EOF ✓1.1 KiB · local snapshot
Metric families
3
Unique series
8
Samples
10
Label names
6
Errors
0
Rules
2

How to use it

  1. 01

    Load metric evidence

    Paste or open Prometheus text or OpenMetrics snapshots without contacting an endpoint.

  2. 02

    Inspect and query

    Review metadata, histograms, cardinality and execute a documented common PromQL subset.

  3. 03

    Validate alert rules

    Import or edit rule YAML, simulate against the snapshot and export review evidence.

Frequently asked questions

Does this connect to Prometheus?

The complete core workflow is local and works from pasted or opened files without a server.

Is the PromQL engine complete?

No. It validates broadly and executes a clearly documented practical snapshot subset; production Prometheus remains authoritative.

What does cardinality mean here?

It is the number of unique series and label values visible in the imported snapshot, not the full production database.

Does a firing result include the alert for duration?

The tool reports expression matches and configuration; a snapshot cannot prove continuous truth across the full for duration.

Keep working with other focused browser utilities.

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Local by default; remote data sources are clearly disclosed.

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