Plotly - Low-Code Data Apps
Google Charts - Interactive charts for browsers and mobile devices.
PykCharts.js - Well designed d3.js charting without the complexity of d3.js
Highcharts - A charting library written in pure JavaScript, offering an easy way of adding interactive charts to your web site or web application
RAWGraphs - RAWGraphs is an open source app built with the goal of making the visualization of complex data...
OrgWeaver - OrgWeaver is a cloud-based organizational chart software.