D3.js - D3.js is a JavaScript library for manipulating documents based on data. D3 helps you bring data to life using HTML, SVG, and CSS.
Mozaik - Mozaïk is a tool based on nodejs / react / d3 / stylus to easily craft beautiful dashboards.
Chart.js - Easy, object oriented client side graphs for designers and developers.
Grafana - Data visualization & Monitoring with support for Graphite, InfluxDB, Prometheus, Elasticsearch and many more databases
Google Charts - Interactive charts for browsers and mobile devices.
freeboard - An open source real-time dashboard builder for IOT and other web mashups.