Free & Open-Source PagerDuty Alternatives

Incident management and alerting.

1. Grafana OnCall ↗ ★ PICKFOSSSELF-HOST
   Open-source on-call scheduling + alerts.
   ●●○Medium · Requires self-hosting
2. Uptime Kuma ↗ FOSSPRIVATESELF-HOST
   Self-hosted status page + uptime monitoring.
   ●○○Easy · Requires self-hosting
3. Healthchecks.io ↗ FOSSPRIVATESELF-HOST
   Cron job monitoring (free tier + self-host).
   ●●○Medium · Requires self-hosting
4. Zabbix ↗ FOSSPRIVATESELF-HOST
   Free enterprise-grade monitoring platform.
   ●●○Medium · Requires self-hosting
5. Nagios Core ↗ FOSSPRIVATESELF-HOST
   Classic free IT monitoring system.
   ●●○Medium · Requires self-hosting
6. LibreNMS ↗ FOSSPRIVATESELF-HOST
   Free open-source network monitoring.
   ●●○Medium · Requires self-hosting