I am developing a website in MVC 4, where user fill some information and save it to upload. all the information except image is being saved on server using Javascript, Json
I personally don't prefer to use any kind of third party tool other than java script, css or html. I will go with first approach shown by UmairP. But if you want to spare your self for writting to much of a code. Here is a nice plugin of jquery.
And also there is a demo for asp.net mvc with this plugin.
Please have a look. Let me know if any further information needed.