I would like a webkit based browser that can only open local files. I want to be free of the security restrictions (as I understand them) which do not allow me

I would like a webkit based browser that can only open local files. I want to be free of the security restrictions (as I understand them) which do not allow me (for example) to save the text I enter in a textarea to a file on my desktop. Finally, I do not want to use a local server. I do not want to deal with local servers either