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Alerta vs Alertmanager
The same facts for both, read from GitHub every night, and the relation a person reviewed.
| Fact | Alerta | Alertmanager |
|---|---|---|
| Language | Python | Go |
| Licence | Apache-2.0 | Apache-2.0 |
| Stars | 2.5k | 8.6k |
| Latest | v9.1.0 | v0.34.1 |
| Last push | 2026-06-19 | 2026-10-06 |
| Release cadence | about 74 days between releases | about 27 days between releases |
| Active contributors | 0 commit authors on the default branch in the last 90 days | 44 commit authors on the default branch in the last 90 days |
| Flags | none | none |
How they relate
Both replace PagerDuty. Alternatives to PagerDuty →
PartialAlertaCollects, deduplicates and correlates alerts from monitoring tools in one console, without on-call schedules or escalation policies.
PartialAlertmanagerGroups, deduplicates, silences and routes alerts to receivers, without on-call schedules or escalation.
Alerta
- v9.1.02026-03-28add counters for rejected, rate-limited, and blackout alerts (#2049)
- v9.0.42024-09-04feat: implement "post_action" for post processing actions.
- v9.0.32024-04-12build(deps): bump werkzeug from 3.0.1 to 3.0.2
- v9.0.22024-04-12build(deps): bump cryptography from 39.0.1 to 41.0.1
- v9.0.12024-04-09Allow locating alerta routing component in any distribution package
Alerta
unsigned The latest release, v9.1.0, carries no signature GitHub could verify.
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Alertmanager
✓ signed The latest release, v0.34.1, carries a signature GitHub verified.
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