Various libraries for web developpement

JavaScript

• Soma.js
• View.js
• Knockout.js
• Kefir
• StreamLine
• Gson
• http://www.diveintojavascript.com/projects/javascript-sprintf 
• http://linqjs.codeplex.com/ 
• http://oss.sheetjs.com/js-xlsx/ (drag and drop)
• https://github.com/agershun/alasql
• http://papaparse.com/ (CSV)

Java

• DWR

Python

• WheezyWeb