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Free public CDN for open source

jsDelivr

Free public CDN for files from npm and GitHub, running since 2012 on a multi-CDN setup (Cloudflare, Fastly, Bunny, Gcore) with 540+ points of presence.

Visit jsdelivr.com ↗ Alternatives Free Open source
jsDelivr homepage
§1

Overview

jsDelivr is a free public CDN for open-source projects, operating since 2012. Any package on npm or repository on GitHub can be loaded by URL, such as cdn.jsdelivr.net/npm/package@version/file, with version ranges, automatic .min generation, directory listings and default-file resolution. esm.run builds modern JavaScript modules on demand.

Instead of one network, jsDelivr load-balances between Cloudflare, Fastly, Bunny and Gcore plus its own servers, choosing a provider per user based on recent performance and availability data. It uses two independent DNS providers and multiple origin data centres, and has locations near China for lower latency there. It reports over 150 billion requests and 5,000 TB a month.

A free API returns package metadata, entry points and download statistics per project, version and file. jsDelivr is not a place to host your own site or private assets; for that, use a regular CDN.

For production use, pin an exact version in the URL; omitting the version returns the latest release, which jsDelivr itself advises against for production sites.

§2

Pricing and plans

Free tier · no card

Free for open-source files from npm and GitHub; no account needed.

At the limit Not stated The vendor does not say what happens at the limit, or we have not found it yet.

Plan Price What you get
Public CDN Free npm, GitHub and ESM delivery, stats API

jsDelivr is free and serves only public open-source content from npm and GitHub; it is not a CDN for your own private origin. Custom CDN endpoints are mentioned on the site but not priced on the pages read. Usage terms are in its Terms of Use.

Source: www.jsdelivr.com/ · prices as published, excluding tax.

§3

What it does

npm and GitHub delivery
Load any published file by URL with semantic version ranges.
esm.run
On-demand ESM builds of npm packages for browsers, Node.js and Deno.
Multi-CDN
Traffic routed across Cloudflare, Fastly, Bunny and Gcore with automatic failover.
Automatic minification
Add .min to any JS or CSS file and jsDelivr generates it.
Stats API
Download statistics and package entry points through a free API.
§4

Strengths and limitations

Strengths

  • Free with no account or setup.
  • Multi-CDN design with failover at DNS, CDN and origin layers.
  • 540+ points of presence, including locations near China.
  • Open-source project with formal terms of use and privacy policy.

Limitations

  • Only serves public content from npm and GitHub.
  • Not a CDN for your own origin, DNS or WAF.
  • No SLA or paid support.
  • Loading 'latest' without a version is not recommended for production.
§5

Who it suits

Good for

  • Open-source library authors
  • Front-end prototypes and demos
  • Sites loading popular JS and CSS libraries

Look elsewhere if

  • Serving your own application or private assets
  • Teams needing a contractual SLA
§6

Alternatives to jsDelivr

Tool From Free option Stages
Hetzner DNS Free DNS hosting in Hetzner Console
— Free tier
deSEC Free DNSSEC-signed DNS hosting
— Free tier
DNSimple DNS hosting and domain management
$0.5/mo Paid
Namecheap Domain registrar
$10.98/yr Paid
Porkbun Domain registrar
$11.08/yr Paid
easyDNS Managed anycast DNS and registrar
$20/yr Paid

All CDN, DNS and edge security →

§7

Questions

Is jsDelivr free?

Yes. jsDelivr is a free CDN for open-source files from npm and GitHub.

Which CDNs does jsDelivr use?

It balances traffic across Cloudflare, Fastly, Bunny and Gcore, plus its own servers.

Can I use jsDelivr for my own website files?

Only if they are published publicly on npm or GitHub; it is not a CDN for private origins.

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