Best Alert Management Software in 2026
Updated
In short: Grafana Cloud Application Observability is ranked #1 of 30 as of 4 October 2026, ahead of Wazuh and PagerDuty. The best-ranked option with a free plan is Wazuh. The lowest first paid tier on this page is Grafana Cloud Application Observability at $0.03/mo.
When alerts need attention, your team needs ways to reduce duplicates, add useful context, and direct notifications to the right people. Compare alert deduplication and enrichment alongside routing and suppression rules, then weigh retention and included alert volume. Free-plan availability and paid-from pricing can help you assess the options. Grafana Cloud Application Observability, Wazuh, and PagerDuty are among the entries to compare. Consider which response workflows matter most to your team and how the listed volume and retention details fit those needs.
30 alert management software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
9 of the 25 here have a free tier you can use, 0 have open-source code on record, and 0 have full bars: free, open, on most of your devices and documented.
| # | App | Signal | Free tier | Open code | Devices | From | Score |
|---|---|---|---|---|---|---|---|
| 1 | Grafana Cloud Application ObservabilityWeb · Windows · Mac · Linux | Three bars | — | 4 of 6 | $0.03/mo | 6.7 | |
| 2 | WazuhWeb · Windows · Mac · Linux · Self-hosted · API | Three bars | — | 4 of 6 | $571/mo | 6.7 | |
| 3 | PagerDutyWeb · Android · iPhone · Self-hosted · API | Three bars | — | 3 of 6 | $233.33/mo | 6.6 | |
| 4 | PrometheusWeb · Windows · Mac · Linux · Self-hosted | Three bars | — | 4 of 6 | Free | 6.6 | |
| 5 | TrueWatch Log ManagementWeb · Windows · Mac · Linux | Three bars | — | 4 of 6 | $0.11/mo | 6.6 | |
| 6 | AlertOpsWeb · Android · iPhone · API | Three bars | — | 3 of 6 | $8/mo | 6.5 | |
| 7 | xMattersWeb · Android · iPhone · API | Three bars | — | 3 of 6 | $15/mo | 6.5 | |
| 8 | New Relic Applied IntelligenceWeb | Two bars | — | 1 of 6 | $10/mo | 6.3 | |
| 9 | OpenObserveWeb | Two bars | — | 1 of 6 | Free | 6.3 | |
| 10 | Elastic ObservabilityWeb · Windows · Mac · Linux · Self-hosted · API | Two bars | — | — | 4 of 6 | — | 5.7 |
| 11 | ZabbixWeb · Windows · Mac · Linux · Self-hosted · API | Two bars | — | — | 4 of 6 | — | 5.7 |
| 12 | AlertaWeb · Linux · Self-hosted · API | One bar | — | — | 2 of 6 | — | 5.5 |
| 13 | RightITnow ECMWeb · Windows · Mac · Linux · iPhone | One bar | — | — | 5 of 6 | — | 5.5 |
| 14 | KeepWeb · Self-hosted · API | One bar | — | — | 1 of 6 | $199/mo | 5.4 |
| 15 | Nova AI OpsWeb · Windows · Mac · Linux · API | Two bars | — | — | 4 of 6 | $16/mo | 5.3 |
| 16 | SEC (Simple Event Correlator)Windows · Linux | No signal | — | — | 2 of 6 | — | 5.3 |
| 17 | UTMStackWeb · Windows · Mac · Linux · Self-hosted · API | Two bars | — | — | 4 of 6 | $238.80/mo | 5.3 |
| 18 | FirstWave opEventsWeb · Windows · Linux · Self-hosted · API | Two bars | — | — | 3 of 6 | — | 5.2 |
| 19 | MISPWeb · Linux | No signal | — | — | 2 of 6 | — | 5.2 |
| 20 | OpenNMSWeb · Linux | No signal | — | — | 2 of 6 | — | 5.2 |
| 21 | HEAL Software Event CorrelationWeb | No signal | — | — | 1 of 6 | — | 5.1 |
| 22 | HookFeedWeb | No signal | — | — | 1 of 6 | — | 5.1 |
| 23 | RiemannLinux | No signal | — | — | 1 of 6 | — | 5.1 |
| 24 | SaneopsWeb | No signal | — | — | 1 of 6 | — | 5.1 |
| 25 | ServiceNow Event ManagementNo platforms listed | No signal | — | — | 0 of 6 | — | 5.1 |
Is your app on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which alert management software is ranked first on Freedom251?
Grafana Cloud Application Observability is ranked #1 of 30 with a score of 6.7. Wazuh is second and PagerDuty third.
How many of these have a free plan?
9 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, Grafana Cloud Application Observability has the lowest first paid tier we found: $0.03/mo.
How is this list ranked?
Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation. Paid placements never change a rank.