I compared some of the most frequently mentioned jQuery alternatives. The selection of features that were compared is purely subjective and based on the functions that I often use personally. For the GZIP compression the highest compression rate (gzip -9) was used. So the actual size in the browser may differ. The functions in the table below are named after the original jQuery functions and may be called differently in some of the frameworks.
|jQuery 1.12.0||jQuery 2.2.0||Zepto 1.1.6||Sprint.js||Minified.js 1.1 (Web)||Cash 1.0.0||Umbrella JS 1.1.3||ki.js|
|Size (Minified)||97 KB||86 KB||25 KB||17 KB||10 KB||8 KB||5 KB||602 Byte|
|Size (GZIP)||34 KB||30 KB||9 KB||5 KB||4 KB||3 KB||2 KB||404 Byte|
File Size Comparison
Here is a graph that shows the different sizes of the libraries. Notably here is ki.js, which is less than 1 KB in size and thus over 100 times smaller than jQuery: