The 100%
Native ES Module
JavaScript CDN.
import {Component, render} from '^10.0.0';

Modern JavaScript Guaranteed

The Pika CDN was built to serve the 70,000+ npm packages written in ES Module (ESM) syntax. This module syntax runs natively in the browser, so you can build without a bundler.

With the Pika CDN, package authors can distribute more modern, unminified packages without worrying about how to serve them directly. Instead, our nifty package-builder automatically resolves each package -- and any legacy sub-dependencies -- into a single, minified, ready-to-import JavaScript file.


Differential Serving

68.93% of global users can run modern JavaScript (ES2019) without a single polyfill or Babel plugin. Unfortunately, sites need to compile their deployed code to support legacy browsers. This adds slow polyfills and transpiler bloat for everyone.

Stop penalizing your users. The Pika CDN optimizes packages to each individual user. Older browsers get the polyfills they need while modern browsers get modern, bloat-free code and faster overall load times.

Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.169 Safari/537.36

Always-Warm Caches

The Pika CDN leverages your browser's shared module cache for incredible performance. A package loaded on one site will be cached and reused for future visits to any CDN-powered site. This means fewer cold starts and faster load times as visitors arrive to your site with dependencies already loaded.

For example: Does your site use preact, vue, or lodash? All three packages have already been prefetched by this page, meaning each would now take 0ms to load on any Pika CDN-powered site.

Commitment to Stability

The Pika CDN was designed for simplicity and stability. Packages are built ahead of time and served directly out of Amazon S3 and Google Storage. The CDN itself is just a fast, stateless proxy to these underlying resources. Simple, stable, boring... on purpose.

Love Pika? Go Pro!

Want to get more out of Pika CDN? The CDN will always be free, but you can also access paid, production features like:

  • Granular Semver Matching & Version Pinning
  • Private Registry Support
  • Private Asset Hosting
  • Access to our Private, Global CDN
  • Service Level Agreement (SLA)
  • Audit Logs & Customer Support

Want to learn more? Join the waitlist to get notified when Pro Membership becomes available.