Fast. Reliable. Automated.

A free CDN for open source projects

Optimized for JS and ESM delivery from npm and GitHub. Works with all web formats.

Operating since 2012.

150 billion requests

past month

over 5 000 TB

past month

// load any project hosted on npm


// load d3 v7.8.3


// use a version range instead of a specific version


// omit the version completely to get the latest one

// you should NOT use this in production


// load a non-default file


// all packages are automatically bundled and minified

Full docs
jsDelivr operates thanks to our main sponsors:

A free API for all your
NPM and ESM needs

The jsDelivr API allows you to get details about NPM packages, such as their versions, tags, and files. By analyzing package metadata and its real usage, it can automatically suggest the correct entry point for each file type.

Additionally the API provides detailed download statistics for each project, version, and file, as well as network-wide usage statistics.

 
// =>
{
  " entrypoints ": {
    " js ": {
      " file ": " / dist / js / bootstrap .min .js ",
      " guessed ":  false
    },
    " css ": {
      " file ": " / dist / css / bootstrap .min .css ",
      " guessed ":  false
    }
  }
}

Learn more about
the infrastructure that
powers jsDelivr

Check our infographic

A New-Age CDN for
JavaScript modules

Load modern JavaScript packages built for you on-demand.
Works in modern web browsers, node.js, and deno.

Global Multi-CDN
HTTP/3, minification, brotli compression, fine-tuned HTTP caching, dependency preloading
Permanent storage shared by all edge servers
								import { Fireworks } from 'https://esm.run/fireworks-js';
								
								let container = document.querySelector('.container');
								
								let options = {
									  gravity1.4,
									  opacity0.4,
									  autoresizetrue,
									  acceleration1.00,
									};
								
								let fireworks = new Fireworks(container, options);
								
								fireworks.start();
								
								

Analytics and Stats

Use our stats to better understand how your projects are being used, which versions are popular, and which files are being downloaded the most.

Top 10 npm packages past 30 days

Custom CDN Endpoints
jsDelivr is happy to support unique OSS use-cases that require a fast CDN

0

Requests past month

0

Bandwidth past month

0

Requests past month

0

Bandwidth past month

0

Requests past month

0

Bandwidth past month

0

Requests past month

0

Bandwidth past month

0

Requests past month

0

Bandwidth past month

0

Requests past month

0

Bandwidth past month
jsDelivr is used by millions of websites globally