Compare software

Moira vs ElastAlert 2: catalog facts
Moira	ElastAlert 2
Free Free and open source; you host it yourself.	Free Free and open source, maintained by community contributors.
Self-hosted	Self-hosted
Realtime alerting on Graphite and Prometheus metrics Separate API, checker and notifier services	Works with both Elasticsearch and OpenSearch Rule-based alerts on patterns in your own data
Needs an existing Graphite or Prometheus metrics setup Several services to deploy and maintain	Only useful if your data already lives in Elasticsearch or OpenSearch Rules are written as configuration files, with no graphical editor
Self-hosted	Self-hosted
Open source	Open source
License not stated	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 23, 2026

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