Alertmanager vs Uptime Kuma
| Tagline | Handle Prometheus alerts with deduplication, grouping, silencing, and routing | Fancy self-hosted uptime monitoring with a beautiful dashboard and status pages |
| Category | Monitoring & Status Pages | Monitoring & Status Pages |
| Replaces | Datadog, Pingdom | UptimeRobot, Pingdom, Statuspage |
| GitHub stars | 6.6k | 88k |
| Language | Go | JavaScript |
| License | Apache-2.0 | MIT |
| Self-host difficulty | 2/5 Easy | 2/5 Easy |
| Deploy options | Docker Docker Compose Kubernetes Manual | Docker Docker Compose Manual |
| Managed hosting | ||
| Last updated | 1 month ago | 5 days ago |
| View repo | View repo |
Where each falls short
The honest trade-offs — what you give up with each, versus the proprietary tools they replace.
Alertmanager
- No built-in dashboard; must pair with Grafana or a similar UI
- Configuration is file-based YAML with no graphical editor
- High-availability clustering requires careful setup
Uptime Kuma
- Single-node by design; no built-in multi-region / global probe network like Pingdom or UptimeRobot Pro
- Status pages are simpler than Statuspage.io (limited custom domains UX, no subscriber-tier management, fewer branding controls)
- No SLA reporting/analytics depth or team RBAC found in commercial offerings
- Scaling to thousands of monitors can strain the single SQLite/MariaDB backend
Bottom line
Both are a similar lift to self-host; choose Uptime Kuma for the larger community and ecosystem. Uptime Kuma has seen more recent development. Open each guide below for deploy steps and the full feature gap.
Alertmanager
Handle Prometheus alerts with deduplication, grouping, silencing, and routing
Uptime Kuma
Fancy self-hosted uptime monitoring with a beautiful dashboard and status pages