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ElastAlert 2Moira
Free

Free and open source, maintained by community contributors.

 Free

Free and open source; you host it yourself.

Self-hosted Self-hosted
  • Works with both Elasticsearch and OpenSearch
  • Rule-based alerts on patterns in your own data
  • Realtime alerting on Graphite and Prometheus metrics
  • Separate API, checker and notifier services
  • Only useful if your data already lives in Elasticsearch or OpenSearch
  • Rules are written as configuration files, with no graphical editor
  • Needs an existing Graphite or Prometheus metrics setup
  • Several services to deploy and maintain
Self-hosted Self-hosted
Open source Open source
License not stated License not stated
No account needed Not stated if an account is needed
Not stated if it works offline Not stated if it works offline

Checked September 23, 2026

Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.