What is Checkmate used for?

Checkmate is a self-hosted monitoring tool that tracks server uptime, response times, incidents and hardware stats with real-time dashboards. It is a good fit for monitoring websites you host and watching hardware health on home servers.

Is Checkmate open source?

Yes. Checkmate is open source under the AGPL-3.0 licence. Its source code is on GitHub at bluewave-labs/Checkmate and is written mainly in TypeScript.

Yes. Checkmate is open source, so the software itself is free to use.

Can I self-host Checkmate?

Yes. Checkmate can be self-hosted on your own server or infrastructure.

What is Checkmate an alternative to?

Checkmate is an open-source alternative to UptimeRobot, Pingdom, Better Stack and Uptime.com. Other open-source alternatives to UptimeRobot include Uptime Kuma, OpenStatus and CheckCle.

Is Checkmate actively maintained?

Yes. The most recent commit to Checkmate was on 1 October 2026, and the latest release is v3.12.0, published on 13 September 2026. The project has 11k stars on GitHub.

Checkmate: open-source alternative to UptimeRobot, Pingdom

About Checkmate

Checkmate is an open-source, self-hosted monitoring application for uptime and infrastructure. It regularly checks whether a server or website is reachable and performing well, and it presents availability, downtime and response time in real-time visualizations with alerts and reports. The repository contains both the frontend and the backend.

An optional agent called Capture collects deeper server data, including CPU, RAM, disk and temperature readings, from remote machines. Capture is written in Go and runs on Linux, Windows, macOS, Raspberry Pi or any device that can run Go. Topics in the repository also mention incident handling and status pages, and the interface uses Material UI components.

Checkmate is written in TypeScript and licensed under AGPL-3.0, and the quickest installation route requires Docker and Git. The project offers a live demo, a user's guide, and translations of the README into many languages. It is positioned as a self-hosted option for teams that currently use hosted uptime services.

Key features

Website and server uptime checks
Response time tracking with dashboards
Incident tracking and alerts
Capture agent for CPU, RAM, disk and temperature
Docker-based installation
Demo instance and user guide

Good fit for

→Monitoring websites you host
→Watching hardware health on home servers

Built with: TypeScript
Tags: uptime-monitoring; server-monitoring; self-hosted; incident-management; status-page; typescript; docker

Checkmate: questions and answers

What is Checkmate used for?: Checkmate is a self-hosted monitoring tool that tracks server uptime, response times, incidents and hardware stats with real-time dashboards. It is a good fit for monitoring websites you host and watching hardware health on home servers.
Is Checkmate open source?: Yes. Checkmate is open source under the AGPL-3.0 licence. Its source code is on GitHub at bluewave-labs/Checkmate and is written mainly in TypeScript.
Is Checkmate free?: Yes. Checkmate is open source, so the software itself is free to use.
Can I self-host Checkmate?: Yes. Checkmate can be self-hosted on your own server or infrastructure.
What is Checkmate an alternative to?: Checkmate is an open-source alternative to UptimeRobot, Pingdom, Better Stack and Uptime.com. Other open-source alternatives to UptimeRobot include Uptime Kuma, OpenStatus and CheckCle.
Is Checkmate actively maintained?: Yes. The most recent commit to Checkmate was on 1 October 2026, and the latest release is v3.12.0, published on 13 September 2026. The project has 11k stars on GitHub.