A New-Age CDN for JavaScript modules
You can use esm.run links for quick demos or prototyping. In production (once this feature is out of beta), always use our main domain.
Global Multi-CDN powered by jsfastly
esm.run is powered by jsfastly and it's sponsors like Cloudflare, Fastly, Bunny, and GCore. This guarantees the best performance and uptime globally, including mainland China.
On-demand builds with permanent storage
Once built, files are stored in a permanent storage shared by all edge servers. That means future access will be always fast, even for files not yet cached at the CDN edge.
State-of-the-art delivery
HTTP/2, HTTP/3, code minification, brotli compression, fine-tuned HTTP caching, dependency preloading - we always use all available options for improving the overall performance.
Learn more about
the infrastructure that
powers jsfastly
