An MIT licensed, D3.js and WebGL charting library for science, engineering, and finance.
100% Free and Open-Source, Forever
- Plotly.js is 100% Free and open-source. Licensed under the MIT open-source license, any company in the world can download Plotly.js and use it for their products or internal tools without restriction. Its all out there and free. Read about our decision to go open-source.
Statistical and engineering charts
Performance: Using WebGL for the Fastest Load Times with the Most Points
- Plotly.js WebGL charts with 1 million points load 1.6x faster than the same Highcharts graph, even with the Highcharts “booster” library. We’ve optimized everything from min-max decimation to numerical type checking. The Plotly.js WebGL backend uses your computer’s graphics card to bypass CPU and memory limitations in SVG or Canvas graphics backends.
Note: The above comparisons use the total rendering time as the benchmark. Highcharts uses an async renderer as an optional paid add-on, which makes a few points appear on the graph in 0.2 seconds, whereas plotly.js plots everything at once. Full discussion.
D3.js and Stack.gl: Stand on the shoulders of Giants
- A Plotly sales engineer will answer any questions, walk you through a demo, and support a trial deployment.