# jsdelivr/jsdelivr

A free, fast, and reliable Open Source CDN for npm, GitHub, Javascript, and ESM

Repository: https://github.com/jsdelivr/jsdelivr
Canonical: https://ross.abutalabs.com/products/jsdelivr
Homepage: https://www.jsdelivr.com
Language: JavaScript
License: MIT
License Family: permissive
Topics: cdn, infrastructure, http, distribution, javascript, npm, npm-cdn, jsdelivr, esm, esmodules, cdn-providers, traffic
Last push: 2026-06-27T18:21:13+00:00

## Health v2 (maintenance only)
Score: 72/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 89, release rhythm 35, longevity 100
- inputs: {"age_days": 5164, "days_push": 67, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 6349, forks 2115 (observed 2026-08-28T04:09:42.725253+00:00)

## What it is
jsDelivr is a free, production-grade public CDN for open-source files, tightly integrated with npm and GitHub, offering on-the-fly minification, ES module serving via esm.run, and a public package metadata API. It uses a multi-CDN architecture with smart load balancing and permanent file storage to guarantee links never break.

## Use cases
- serve javascript libraries from a cdn
- load npm packages as es modules in the browser
- host css and js files for a website without setup
- get npm package metadata and download statistics via api
- combine and minify multiple js files on demand
- reliable cdn links that never 404 for open source projects

## When to choose
- you need free, unlimited-bandwidth delivery of npm or GitHub files
- you want production-grade uptime with multi-CDN failover
- you need on-demand minification, version aliasing, or ESM builds
- you want package metadata and download stats through a public API

## When to avoid
- you need to serve private or proprietary assets
- you require full control over CDN configuration and custom domains
- you need guaranteed SLAs or enterprise support
- you serve large non-web files like videos or datasets

## Facets
- artifact type: service
- maturity: stable
- function: http-server, caching, developer-tools, api-framework
- domain: web-development, frontend, developer-tools, apis
- platform: cloud
- tags: cdn, npm, esm, esmodules, multi-cdn, content-delivery, minification, open-source-infrastructure, web-server, nodejs

## Member repositories
- jsdelivr/jsdelivr (main) score 72

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:42.725253+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:46:07.192949+00:00, confidence not recorded.
  - readme: https://github.com/jsdelivr/jsdelivr (fetched 2026-08-28T04:09:42.725253+00:00, sha d7208ba9f3d7)
  - homepage: https://www.jsdelivr.com (fetched 2026-08-29T08:42:41.476491+00:00, sha 492d0f456f2c)
  - site_page: https://www.jsdelivr.com/about (fetched 2026-08-29T08:42:41.485734+00:00, sha 1932f2976490)
  - site_page: https://www.jsdelivr.com/documentation (fetched 2026-08-29T08:42:41.487685+00:00, sha e551658726e8)
  - site_page: https://www.jsdelivr.com/docs/data.jsdelivr.com (fetched 2026-08-29T08:42:41.489365+00:00, sha c03e47a94bac)
  - site_page: https://www.jsdelivr.com/esm (fetched 2026-08-29T08:42:41.490846+00:00, sha a2959682250e)
- Data as of 2026-08-30T08:39:29.467469+00:00.