17 self-hosted Cronitor alternatives

Uptime Kuma is a self-hosted uptime monitoring tool for HTTP(S), TCP, ping, DNS and more, with notifications, charts, and public status pages.

90.7k stars8.3k forksMITlast commit 27 Aug 2026Actively maintained

Self-hosted status page and uptime monitoring tool with configurable health checks, dashboards, metrics, and alerting for HTTP, TCP, ICMP, and DNS endpoints.

11.9k stars808 forksApache-2.0last commit 18 Aug 2026Actively maintained

Self-hosted monitoring for websites and servers with uptime checks, response-time metrics, incidents, and status pages, plus optional agent-based hardware monitoring.

10.8k stars1.2k forksAGPL-3.0last commit 26 Aug 2026Actively maintained

Open-source service that monitors cron jobs and scheduled tasks via HTTP/email pings, providing a dashboard, alerts, badges and many notification integrations.

10.3k stars1k forksBSD-3-Clauselast commit 21 Aug 2026Actively maintained

Open-source Node.js distributed task scheduler with web UI, real-time logs, multi-server failover, REST API and plugin support for arbitrary scripts.

5.8k stars501 forkslast commit 15 Aug 2026Actively maintained

Portable, file-backed workflow orchestrator that defines DAGs in declarative YAML, runs anywhere as a single binary, and includes a modern Web UI for monitoring and control.

3.8k stars317 forksGPL-3.0last commit 27 Aug 2026Actively maintained

LoggiFly monitors Docker/Podman container logs for keywords or regex patterns and sends alerts via ntfy or Apprise, with optional log attachments and container actions.

1.8k stars51 forksMITlast commit 15 Jul 2026Actively maintained

Self-hostable domain portfolio manager that auto-fetches DNS/WHOIS/SSL data, tracks changes, monitors uptime, and sends configurable renewal and security alerts.

1.5k stars116 forksMITlast commit 15 Aug 2026Actively maintained

Self-hosted infrastructure dashboard to inventory servers, organize app quick links, and track availability with built-in uptime history and notifications.

1.3k stars37 forksMITlast commit 13 Feb 2026Slowing down

Open-source, self-hosted uptime monitoring tool for websites, APIs, and infrastructure with notifications, public status pages, and multiple monitor types.

1.2k stars68 forksMITlast commit 24 May 2026Actively maintained

Self-hosted monitoring tool for uptime, TCP/HTTP checks, Docker monitoring, multi-user dashboards, incident management, SSO and alerting integrations.

737 stars43 forkslast commit 5 May 2026Actively maintained

Self-hosted uptime and SSL monitoring with status pages, REST API, Prometheus and OpenTelemetry exporters, per-monitor notifications, and YAML-based configuration.

598 stars37 forksAGPL-3.0last commit 21 Aug 2026Actively maintained

Self-hosted uptime and SSL monitoring with status pages, REST API, Prometheus/OpenTelemetry exporters, per-monitor notifications, and YAML config.

598 stars37 forksAGPL-3.0last commit 21 Aug 2026Actively maintained

Open-source event tracker for tech products: ingest key events, send push notifications, run webhook actions, and monitor critical workflows in real time.

477 stars18 forksAGPL-3.0last commit 26 Jul 2026Actively maintained

Open-source event tracker that sends push notifications and real-time alerts, with webhook action buttons, PWA support, and a developer-friendly API and SDKs.

477 stars18 forksAGPL-3.0last commit 26 Jul 2026Actively maintained

Go-based lightweight dashboard with tabs, panels, uptime monitoring and notifications; configurable via GUI or YAML, runs as Docker container or single binary.

244 stars13 forksMITlast commit 24 Dec 2023Likely dormant

Open-source error tracking, performance monitoring and uptime checks compatible with Sentry SDKs; available self-hosted or as a hosted SaaS.

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