The Bottom Line
- Price
- Free, no paid tier. Compare plans
Key facts
- cdnjs is a free CDN that hosts popular JavaScript and CSS libraries for faster website loading
- It provides instant access to thousands of open-source libraries with automatic optimization
- Completely free to use, powered by Cloudflare infrastructure
Pros
- Free CDN for libraries
- Huge library collection
- Good performance
- Easy to use
- Community driven
Cons
- Dependency on third party
- Version availability varies
- No SLA
- Security considerations
- Self-hosting often better
What is cdnjs?
Available on: Web
Ratings Across the Web
cdnjs holds an aggregate rating of 4.3 out of 5 from 67 reviews across SourceForge, last checked September 2, 2026.
Ratings aggregated from independent review platforms. Learn more
Key Features
- CDN
- JavaScript libraries
- CSS frameworks
- Free
- Cloudflare backed
- Open source
Pricing Plans
Pricing checked Oct 8, 2026. Source: cdnjs.com, read Oct 8, 2026
| Plan | Price | Details |
|---|---|---|
| Free Popular | $0 | Public CDN
+1 more Show less
|
Is cdnjs worth the price?
The cdnjs pricing is exceptionally fair and generous, as it offers a completely free service.
There are no dollar amounts to compare, as all features are provided at no cost. This is best for any developer or project needing reliable, free access to popular JavaScript libraries.
cdnjs by the numbers
| Metric | cdnjs | Peer median | Position (1 is best) |
|---|---|---|---|
| Free plan | Yes | 23 of 34 have one | n/a |
| Listed as an alternative to | 2 tools | 4 | #19 of 34 (joint) |
| User rating | 4.3/5 (across the web, 67 ratings) | 4.4/5 | #12 of 21 (joint) tools with 20+ reviews |
| Compare-page visits, last 30 days | 25 visits | 43 | #9 of 12 tools with 20+ compare-page visits |
Each position is counted among the tools that have data for that row, as noted under it. All CDN data · How we compute this. Advertising and placement fees are not inputs to any position. Visit counts include visits from every source.
Cite this: Toolradar, “cdnjs by the numbers”, Oct 2026.
Reviews
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cdnjs FAQ
How does cdnjs help developers with website performance?
Which teams benefit most from using cdnjs?
How is cdnjs priced?
Can cdnjs be used to verify the integrity of hosted libraries?
What kind of trade-offs should be considered when using cdnjs?
How does cdnjs compare to jsDelivr for hosting JavaScript libraries?
Source: cdnjs.com