jsDelivr is a free, public CDN (Content Delivery Network) for developers and webmasters, offering hosting for JavaScript, CSS libraries, fonts, and more.
Best Skypack Alternatives ranked by AI · updated Aug 2026
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Skypack is an HTTP CDN that makes npm packages available as browser-compatible JavaScript modules. It targets developers who want to import third-party packages directly in modern web applications.
Top 6 Skypack alternatives
Google Hosted Libraries is a free CDN for loading popular open-source JavaScript libraries from Google's infrastructure. It is intended for web developers...
Pros
- Simple script URLs for widely used JavaScript libraries
- Global Google infrastructure with HTTPS support
- Familiar versioned URLs and strong browser-cache potential
Cons
- Smaller library catalog than jsDelivr or UNPKG
- Many hosted libraries are older and may not receive updates
- Limited support for modern npm package workflows
JSPM is a package manager for the SystemJS universal module loader, built on top of the dynamic ES6 module loader.
unpkg is a free CDN that serves files directly from npm packages. It is aimed at JavaScript developers who need quick browser...
Pros
- Direct access to the full npm package ecosystem
- Convenient URLs for package files and versions
- Useful for prototypes, demos, and browser-based imports
Cons
- Less suitable for production-critical assets than a controlled build pipeline
- Package authors control available file layouts and metadata
- Npm package resolution can be less predictable without pinned versions
6
esm.sh
esm.sh
esm.sh is an HTTPS CDN that converts npm packages into browser-compatible ES modules. It is built for modern JavaScript developers using native...
Pros
- Converts many npm packages to browser-ready ES modules
- Supports modern import syntax without local bundling
- Provides automatic dependency transformation
Cons
- Less suitable for legacy script-tag libraries
- Module transformation can expose compatibility issues
- Cold transformations may add initial request latency
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