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jsDelivr
jsDelivr · founded 2012
What it is
jsDelivr is a free content delivery network for open-source files from GitHub and npm. It delivers JavaScript, ESM, and other web formats without bandwidth limits or premium features. The Free CDN plan costs nothing. Its network has 540 edge locations and combines Cloudflare, Fastly, Bunny, GCore, and custom servers where coverage is limited. A load balancer chooses providers using recent performance and availability data, while independent DNS providers, health monitoring, and multiple origin data centers provide failover. Package features include on-demand file combining and minification, source map support, and version aliasing. The API exposes 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. jsDelivr describes the service as suitable for production websites, including very high-traffic sites.
For and against
For
- Free plan has no bandwidth limits
- 540 edge locations
- Multiple CDN providers and failover layers
- Supports package combining and minification
- API includes usage statistics
Against
- No premium features
- Image optimization is not available
- Traffic relies on CDN sponsors
- No free trial is listed
The verdict
jsDelivr offers open-source package delivery through a multi-provider CDN and a detailed API. Its free, uncapped model and ESM support fit websites that need hosted JavaScript and related files.
Who it suits
It suits developers delivering open-source dependencies through GitHub and npm. Production websites, including those with very large traffic volumes, are among the stated audiences.
Plans and prices
Free CDN
No bandwidth limits · no premium features
Read 8 Oct 2026 · jsdelivr.com
On the record
- API
- The API provides npm package versions, tags, files, entry-point suggestions, download statistics, and network-wide usage statistics.jsdelivr.com · read 8 Oct 2026
- Edge locations
- 540jsdelivr.com · read 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.jsdelivr.com · read 8 Oct 2026
- Failover
- Two independent DNS providers, CDN health monitoring, and multiple origin data centers provide failover at several layers.jsdelivr.com · read 8 Oct 2026
- History
- The site says jsDelivr began operating in 2012, and its history page dates its founding to May 2012.jsdelivr.com · read 8 Oct 2026
- Image optimization
- Nojsdelivr.com · read 24 Sep 2026
- Network
- Its multi-CDN infrastructure uses Cloudflare, Fastly, Bunny, GCore, and custom servers where CDN coverage is limited.jsdelivr.com · read 8 Oct 2026
- No usage caps
- The service has no bandwidth limits or premium features and is free for anyone to use.jsdelivr.com · read 8 Oct 2026
- Package features
- The site lists on-demand file combining and minification, source map support, and version aliasing.jsdelivr.com · read 8 Oct 2026
- Privacy and terms
- The site links to formal Terms of Use and a Privacy Policy.jsdelivr.com · read 8 Oct 2026
- Routing
- Its load balancer selects providers using recent performance and availability data and can remove degraded providers from regional traffic.jsdelivr.com · read 8 Oct 2026
- Security focus
- The About page lists security as one of the project's areas of focus.jsdelivr.com · read 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.jsdelivr.com · read 8 Oct 2026
- Web delivery
- The CDN is optimized for delivering JavaScript and ESM from npm and GitHub and works with all web formats.jsdelivr.com · read 8 Oct 2026
- What it does
- jsDelivr is a free CDN for open source files, integrated with GitHub and npm.jsdelivr.com · read 8 Oct 2026
- Who it serves
- jsDelivr describes its CDN as suitable for production websites, including sites with very large traffic volumes.jsdelivr.com · read 8 Oct 2026
