D3 (or D3.js) is a free, open-source JavaScript library for visualizing data. Its low-level approach built on web standards offers unparalleled flexibility in authoring dynamic, data-driven graphics. For more than a decade D3 has powered groundbreaking and award-winning visualizations, become a foundational building block of higher-level chart libraries, and fostered a vibrant community of data practitioners around the world.

• Documentation
• Examples
• Releases

If you use npm, npm install d3. You can also download the latest release on GitHub. For vanilla HTML in modern browsers, import D3 from jsDelivr:

<script type="module">

import * as d3 from "https://cdn.jsdelivr.net/npm/d3@7/+esm";

const div = d3.selectAll("div");

</script>

For legacy environments, you can load D3’s UMD bundle from an npm-based CDN such as jsDelivr; a d3 global is exported:

<script src="https://cdn.jsdelivr.net/npm/d3@7"></script>
<script>

const div = d3.selectAll("div");

</script>

You can also use D3 modules individually. For example, d3-selection:

<script type="module">

import {selectAll} from "https://cdn.jsdelivr.net/npm/d3-selection@3/+esm";

const div = selectAll("div");

</script>

D3 is written using ES modules. Create a custom bundle using Rollup, Webpack, or your preferred bundler. To import D3 into an ES2015 application, either import specific symbols from specific D3 modules:

import {scaleLinear} from "d3-scale";

Or import everything into a namespace (here, d3):

import * as d3 from "d3";

Or using dynamic import:

const d3 = await import("d3");

You can also import individual modules and combine them into a d3 object using Object.assign:

const d3 = await Promise.all([
  import("d3-format"),
  import("d3-geo"),
  import("d3-geo-projection")
]).then((d3) => Object.assign({}, ...d3));