Grafana - Data visualization & Monitoring with support for Graphite, InfluxDB, Prometheus, Elasticsearch and many more databases

Status.io - Status.io is a platform for system status pages and status notifications. Companies rely on Status.io to track outages, schedule planned maintenances, broadcast status notifications, and much more; and their customers love the transparency.

Dashing.io - The exceptionally handsome dashboard framework

StatusHub - StatusHub is an IT Incident & Disruption Communication tool that helps you keep your customers and team informed during service downtime. StatusHub makes it easy to keep everyone informed through status pages and multiple notification channels.

Smashing - Smashing is a fork of Dashing (which is no longer maintained), a Sinatra based framework that lets you build beautiful dashboards.

StatusPage.io - StatusPage.io is the best way for web infrastructure, developer API, and SaaS companies to get set up with their very own status page in minutes. Integrate public metrics and allow your customers to subscribe to be updated automatically.