We built Overwatch because monitoring shouldn't require a browser tab, a complex onboarding wizard, or a pricing page that needs a calculator.
Overwatch ships as a single Go binary. Run overwatch serve to start a self-hosted monitoring server, define checks and alerts in YAML, and manage everything from the CLI. If you'd rather not run a server, Overwatch Cloud gives you the same experience with hosted infrastructure.
What you can monitor
Out of the box, Overwatch supports HTTP/HTTPS endpoint checks, TCP port connectivity, TLS certificate expiry, DNS resolution, and check-in webhooks for cron jobs and scheduled tasks. Every check type has configurable intervals, timeouts, and alert bindings.
Alerts that go where you need them
Webhook alerts work with Slack, Teams, PagerDuty, and any HTTP endpoint. SMTP support means you can send email through your own relay with TLS and authentication. Test any alert destination with overwatch alert test before you rely on it.
What's next
We're working on status pages, multi-region checks, and deeper integrations. Follow along on the changelog or star the repo on GitHub.