Open Source Visualizations

 

Open Source Visualizations
App Gallery Tutorial Comments License
Chart.js gallery tutorial
JSON JSON
Logarithmic Cartesian Axis options
Easy to implement.  
MIT
D3.js gallery tutorial
tutorial
Steep learning curve BSD
amCharts gallery tutorial
Fantastic visualizations, especially gauges & mapping.
The free version of amChart will leave a backlink to its website on the top of every chart.
 
Smoothie Charts gallery tutorial For streaming data (from a WebSocket) MIT
APEXCHARTS gallery tutorial
tutorial
logarithmic scales
Zoom line chart (2nd overview chart)
Get JSON data via AJAX request (or embed in js).
MIT

Use fetch to make http requests and acquire data for charts.   tutorial   examples