jsDelivr
jsDelivr is a free CDN for open-source files integrated with GitHub and npm.
What jsDelivr is
jsDelivr is a free CDN for open-source files integrated with GitHub and npm. It is designed to deliver JavaScript and ESM and supports all web formats. The Free CDN plan costs nothing and has no bandwidth limits or premium features. Its network combines Cloudflare, Fastly, Bunny, GCore, and custom servers where coverage is limited, across 540 edge locations. A load balancer selects providers using recent performance and availability data and can exclude degraded providers from regional traffic. Failover uses two independent DNS providers, CDN health monitoring, and multiple origin data centers. Package tools include on-demand file combining and minification, source map support, and version aliasing. The API provides package versions, tags, files, entry-point suggestions, download statistics, and network-wide usage statistics. Its ESM service supports modern browsers, Node.js, and Deno, with HTTP/3, Brotli compression, caching, and dependency preloading. The project identifies security as an area of focus and links to Terms of Use and a Privacy Policy. It describes the CDN as suitable for production websites, including those with very large traffic volumes.
Good
- Free plan has no bandwidth limits.
- Supports JavaScript, ESM, and all web formats.
- 540 edge locations across its network.
- Includes package combining, minification, and version aliasing.
- API provides package and usage statistics.
Watch out
- No image optimization is listed.
- Service relies on CDN sponsors for traffic.
- No premium features are offered.
Who it suits
jsDelivr suits developers delivering open-source files from GitHub or npm, including production websites with very large traffic volumes. Its API and ESM delivery may be useful for projects that need package metadata or module delivery.
Verdict
jsDelivr offers open-source file delivery with package tools, API data, and a multi-provider network. Its free plan has no bandwidth limits, while the listed feature set does not include image optimization.
Plans and prices
From jsDelivr's own pricing page, checked 8 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Free CDN | Free | No bandwidth limits · no premium features |
The facts
Each one read from jsDelivr's own pages, with the date it was checked.
What it does
- API
- The API provides npm package versions, tags, files, entry-point suggestions, download statistics, and network-wide usage statistics.checked 8 Oct 2026
- Edge locations
- 540checked 24 Sep 2026
- ESM delivery
- The site says its ESM service supports modern browsers, Node.js, and Deno, with HTTP/3, Brotli compression, fine-tuned caching, and dependency preloading.checked 8 Oct 2026
- Failover
- Two independent DNS providers, CDN health monitoring, and multiple origin data centers provide failover at several layers.checked 8 Oct 2026
- History
- The site says jsDelivr began operating in 2012, and its history page dates its founding to May 2012.checked 8 Oct 2026
- Image optimization
- Nochecked 24 Sep 2026
- Network
- Its multi-CDN infrastructure uses Cloudflare, Fastly, Bunny, GCore, and custom servers where CDN coverage is limited.checked 8 Oct 2026
- No usage caps
- The service has no bandwidth limits or premium features and is free for anyone to use.checked 8 Oct 2026
- Package features
- The site lists on-demand file combining and minification, source map support, and version aliasing.checked 8 Oct 2026
- Privacy and terms
- The site links to formal Terms of Use and a Privacy Policy.checked 8 Oct 2026
- Routing
- Its load balancer selects providers using recent performance and availability data and can remove degraded providers from regional traffic.checked 8 Oct 2026
- Security focus
- The About page lists security as one of the project's areas of focus.checked 8 Oct 2026
- Support model
- The service relies on CDN sponsors for traffic and says its main expenses are covered by founder Dmitriy Akulov at present.checked 8 Oct 2026
- Web delivery
- The CDN is optimized for delivering JavaScript and ESM from npm and GitHub and works with all web formats.checked 8 Oct 2026
- What it does
- jsDelivr is a free CDN for open source files, integrated with GitHub and npm.checked 8 Oct 2026
- Who it serves
- jsDelivr describes its CDN as suitable for production websites, including sites with very large traffic volumes.checked 8 Oct 2026
The company
- Founded
- 2012checked 28 Sep 2026
Money
- Free plan
- Yeschecked 24 Sep 2026
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