CDNJS vs Packagist

Same instrument, two spec sheets — measured, not claimed.

Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms28161
P95 · ms936939
Authnonenone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree and open, no keyFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

CDNJS vs Packagist: common questions

Which is more reliable, CDNJS or Packagist?

Both are neck-and-neck — CDNJS and Packagist each measure 100% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.

Which is faster, CDNJS or Packagist?

Packagist has the lower median latency in our checks — CDNJS responds in 281 ms versus Packagist at 61 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.

Do CDNJS and Packagist need an API key?

Neither needs a paid key — CDNJS is callable with no signup, and Packagist is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call CDNJS and Packagist from the browser?

Only CDNJS is browser-friendly — it returns CORS headers over HTTPS. Packagist needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are CDNJS and Packagist free for commercial use?

CDNJS has unclear commercial terms, and Packagist has unclear commercial terms. We track service terms and the data license as separate fields — see the Commercial use and Data license rows above, and confirm both before shipping either in a paid product.