About
cdnjs is a free and open-source content delivery network for serving JavaScript library files and other web assets from a global edge network. It is powered by Cloudflare and exposes a public CDN endpoint that developers can use to load library files on websites.
The service is aimed at developers who need fast, reliable delivery of common frontend libraries without running their own asset hosting. The source page describes it as free and open source, with support for HTTP/3, HTTP/2, QUIC, HSTS preload, and Brotli compression.
- Free and open-source CDN service
- Library file delivery over Cloudflare
- HTTP/3, HTTP/2, and QUIC support
- HSTS preloaded secure connections
- Brotli 11 file compression
- Over 250 billion monthly requests
Free Tier Value
This is a truly free, public CDN with no paid tiers shown on the page and no usage caps described. Because the service is presented as free forever and open source, there is no defensible monthly dollar equivalent to assign beyond noting that it has full practical access within the published offering.
What's included in the free tier
Verified
Details aren't itemized for this entry yet - check the pricing page below for the latest.
See cdnjs pricing for current limits.
Common questions
Is cdnjs free forever?
Yes. cdnjs is free forever, with no time limit and no usage threshold that forces a paid plan.
Does cdnjs require a credit card?
No. You can start on cdnjs's free tier without entering card details.
What is cdnjs's free tier worth?
cdnjs's free tier has no dollar cap - it's unlimited, with no usage threshold that forces a paid plan. That maps to an FTV score of 100/100. The FTV score is explained at freetier.co/ftv.
