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Alertmanager Routing & Inhibition Simulator

Parse Alertmanager configuration and alert labels locally, simulate nested routes, continue behavior, grouping, silences and inhibition, and safely export a routing matrix.

Configuration, labels and credentials stay in this browser
The tool never sends notifications, invokes receivers or reloads Alertmanager. Integration credentials are masked in safe exports.

Configuration and simulation data

Up to 2 MiB of configuration, 1,000 routes, 2,000 alerts and 500 silences.

Load a sample or add configuration and alerts

The route tree, final receivers, group keys, silences and inhibition explanations will appear here.

The simulator follows common Alertmanager routing semantics, but versions, templates, HA deduplication and notification integrations must still be validated with the target Alertmanager.

About Alertmanager Routing & Inhibition Simulator

Validate alert receivers, grouping, silences and inhibition. Parse Alertmanager configuration and alert labels locally, simulate nested routes, continue behavior, grouping, silences and inhibition, and safely export a routing matrix. The core workflow is designed to run in your current browser.

Key capabilities

  • Simulate inherited settings, sibling short-circuiting, continue and fallback receivers
  • Explain silence, time interval and inhibition matches
  • Generate deterministic group keys from the effective group_by settings
  • Mask webhook, SMTP and chat integration credentials automatically

Useful for

  • Verify alert destinations before publishing an Alertmanager configuration
  • Investigate alert storms, unexpected silences or ineffective inhibition
  • Generate a reviewable label-to-receiver test matrix

Frequently asked questions

Is Alertmanager Routing & Inhibition Simulator free to use online?

Yes. Alertmanager Routing & Inhibition Simulator opens in a modern browser and does not require desktop software installation.

What is Alertmanager Routing & Inhibition Simulator useful for?

Common use cases include Verify alert destinations before publishing an Alertmanager configuration; Investigate alert storms, unexpected silences or ineffective inhibition.

Is my input or file uploaded?

The core processing workflow is designed to run locally in the browser. Key capabilities include Simulate inherited settings, sibling short-circuiting, continue and fallback receivers, Explain silence, time interval and inhibition matches, Generate deterministic group keys from the effective group_by settings; account, comments, and anonymous analytics may still create normal site requests.

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