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.

173 billion requests

past month

over 6 634 TB

past month

// load any project hosted on npm


// load jQuery v3.6.4


// 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


// add ".min" to any JS/CSS file to get a minified version

// if one doesn't exist, we'll generate it for you


// omit the file path to get the default file


// add / at the end to get a directory listing

Full docs
jsDelivr operates thanks to our main sponsors:
Multi-CDN Global Network

Built for production

1 mil+ active oss projects served
99.46% cache hit ratio
0 requests per second
0 Mbps bandwidth

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

1 npm/ bootstrap 13 104 284 348
2 npm/ workbox-cdn 11 154 449 609
4 npm/ swiper 8 643 846 124
6 npm/ slick-carousel 6 252 886 466
7 npm/ hls.js 4 217 968 486
8 npm/ bootstrap-icons 3 362 553 863
9 npm/ yandex-metrica-watch 2 696 041 039
10 npm/ mathjax 2 096 519 668
Custom CDN Endpoints
jsDelivr is happy to support unique OSS use-cases that require a fast CDN

247 665 927

Requests past month

235 GB

Bandwidth past month

25 604 559

Requests past month

2 511 GB

Bandwidth past month

8 887 221

Requests past month

10 693 GB

Bandwidth past month

30 008

Requests past month

1 305 GB

Bandwidth past month

6 580 103

Requests past month

238 GB

Bandwidth past month

540 966

Requests past month

77 GB

Bandwidth past month
jsDelivr is used by millions of websites globally