Open-source Libraries and File Sizes

This list compares sizes of development and production version of libraries with and without compression on PageCDN and other CDNs. The compression schemes used for comparison are:

  1. "PageCDN Size" is file size returned by PageCDN after applying Brotli compression for supported browsers. Brotli is the best in class for compressing resources over the web. PageCDN applies different compression level for different types of assets. For public resources, brotli-11 compression is used.
  2. "Common Size" is the average size of compressed files served from different open source CDNs at the time these tests were performed. CDNs include Google Hosted Libraries, Microsoft Ajax CDN, CDNJS, jsDelivr, unpkg and some branded CDNs offered by libraries.

Below are the most commonly used open source libraries and their file sizes. All these libraries are available on the PageCDN's Public CDN.

Please note that file sizes may be inflated by 0.02 KB to 0.1 KB in some cases, as these sizes were recorded in Firefox browser and include headers size when the server did not send the exact size in Content-Length header. However, since the 'Common size' field below lists average size, the overall effect on numbers is expected to be negligible.

LibraryRawMinifiedCommon SizePageCDN Size
jQuery273.79 KB86.08 KB30.31 KB27.65 KBDetails
Bootstrap187.84 KB152.11 KB24.20 KB17.30 KBDetails
D3.js494.64 KB236.82 KB74.51 KB65.75 KBDetails
Ant Design5,746.78 KB1,938.99 KB438.24 KB362.82 KBDetails
Semantic UI809.47 KB613.78 KB91.93 KB78.25 KBDetails
Font Awesome1,166.90 KB1,104.04 KB422.56 KB331.12 KBDetails
React DOM773.49 KB105.47 KB33.33 KB30.28 KBDetails
three.js1,129.42 KB562.75 KB134.01 KB114.44 KBDetails
Bulma220.01 KB186.13 KB23.40 KB19.30 KBDetails
Vue.js333.46 KB91.48 KB33.17 KB30.58 KBDetails

Please send corrections and updates to