Grafana - Data visualization & Monitoring with support for Graphite, InfluxDB, Prometheus, Elasticsearch and many more databases
Cachet - Cachet is a free, open source status page for your API, service or company. Built with all of the features that you'd expect from a status page.
Mozaik - Mozaïk is a tool based on nodejs / react / d3 / stylus to easily craft beautiful dashboards.
cState - 🔥 Free & open source under MIT!
Dashing.io - The exceptionally handsome dashboard framework
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.