In one of my current projects, I need a JavaScrip module to serialize the user form input in JSON format and then to send it to the server. I also need it to deserialize the data from the server and input into the form in order to allow the user to view or update it. Basically it is a two-way form-JSON binder. AngularJS fits this scenario perfectly, but it is a little heavy from my perspective.
js-binding is the one that I chose. I did a little modification on it in order to avoid serializing blank inputs and deserializing undefined JSON properties. It is the server side that decides if a field should be updated if the request says nothing about it. The modified version is on GitHub.
Using the serialization function, I can also check whether the form was updated before submitting the data to the server.