Where and in which format View State information stored in a webpage

Similar:-

1) View state data stored in which format.

2) where is view state information stored (server or client)?
 

View state data is stored in the client side(Webpage) in the form 

of
a hidden control(HTML hidden field) called “__VIEWSTATE” and 

View State Data is stored in Base64 String encoded format which  can be further decoded.   

Asp.net viewstate control converted into the standerd html hidden field at the time of render the page.