Two repositories containing two tools that I built today:
1. Upload plugin for JQuery - upload files using ajax. It lets you define the element and the event on which start the upload:https://github.com/jgrAlex/file-upload-js
2. Uploader module for KohanaFramework
- configure your file properties including options for various sizes and use a single line to make the upload.
I used adapters for this one. For now it only handles images, but if anybody feels like contributing with some more file types you are welcome to do so.
I actually made them to use them together. I hope that they make life easier for whoever wants to use them.