Chrome: Fill out same form many times for testing
You can check out iMacros for Chrome:
https://chrome.google.com/webstore/detail/imacros-for-chrome/cplklnmnlbnpmjogncfgfijoopmnlemp
Call it a rudimentary answer, but I believe the button shortcuts in Chrome accept Javascript. I've done this with FireFox by doing something like:
javascript:document.formname.fieldname.value='value';document.formname.fieldname2.value='value';document.formname.fieldname3.value='value';return false;
There are some plugins. I used the below one, and it can satisfy your requirement. This extension allows you to fill all form inputs with dummy data.
https://chrome.google.com/webstore/detail/form-filler/bnjjngeaknajbdcgpfkgnonkmififhfo
Here this one is for storing the form data and reusing it later. plugin populates with the data saved later when you want to fill it again.
Hope this helps