New check

Comparison

Skypack vs jsDelivr

Skypack lands on Depends, and jsDelivr lands on Worth it.

Skypack

Depends

Confidence: Medium

Fine for prototypes, demos, and Deno imports where a free CDN URL beats installing anything.

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jsDelivr

Worth it

Confidence: High

Free and well-regarded for serving open-source files from npm and GitHub . pin exact versions.

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Skypack versus jsDelivr
Compare	Skypack	jsDelivr
Verdict	Depends	Worth it
Best for	No-build prototypes and demos	Open-source library authors
Who it's not for	Production apps needing uptime SLAs or vendor contracts	Commercial apps needing SLAs or support contracts
Privacy	No known public vulnerabilities found in the sources reviewed.^²	No CVEs against the service itself in sources; a 2023 incident served already-removed malicious npm packages used in phishing.
Support quality	No support evidence found	No support-quality evidence in sources
Public sentiment	Mentions are mostly directory listings and dated community posts praising the no-install CDN approach; recent first-hand feedback is scarce.^³	Users on Reddit and G2 call it one of the best free JS CDNs for offloading scripts, but complain when outages and 404s break their sites.¹³
Biggest gotcha	Free forever with no paid tier means no revenue; long-term availability is unproven.^⁵	Free means no SLA: its outages and 404s become your site's incidents. Pin exact versions.

Pick Skypack when

No-build prototypes and demos
Deno users importing packages by URL
Single-file browser experiments
Learning ESM without tooling

When Skypack is not a fit

Production apps needing uptime SLAs or vendor contracts
Teams already running bundlers like Vite or webpack
Enterprises with security review requirements . no security page exists
Long-lived infrastructure pinned to a free service with no revenue

Pick jsDelivr when

Open-source library authors
Front-end devs loading npm/GitHub files
Demos, docs, and prototypes
Offloading static JS from small servers

When jsDelivr is not a fit

Commercial apps needing SLAs or support contracts
First-party production assets with uptime guarantees
Teams that can't accept third-party dependency on critical paths
Enterprises wanting vendor accountability and contracts

Sources

Skypack homepageskypack.dev
official
Skypack security pageskypack.dev
security
Singapore Deno User Groupfacebook.com
review
Reddit . Skypack Quality Score discussionreddit.com
review
Hacker News . Skypack launch discussionnews.ycombinator.com
news
Compare NPM Alternatives (Skypack, jsDelivr, unpkg)blog.blazingcdn.com
news
Medium . Joe Alongi on Skypack + Denojoealongi.medium.com
review
npm supply chain attack coveragegbhackers.com
security
jsdelivr/jsdelivr . GitHub repogithub.com
official
jsDelivr homepagejsdelivr.com
official
Our Network . jsDelivrjsdelivr.com
official
JSDelivr . Wikipediaen.wikipedia.org
news
jsDelivr Reviews . G2g2.com
review
Just a short review: jsDelivr seems be the best CDN . Redditreddit.com
review
jsdelivr cdn is down . Reddit r/webdevreddit.com
review
jsDelivr Overview, Reviews, Pricing . TrustRadiustrustradius.com
review