The Desktop Theme Editor is an essential tool for theme development on the Shopify platform.
This theme editor can be used with any html or text editor (Coda 2, Sublime, TextMate), so you don’t have to give up on your favorite one.
Once you connect to your store all you have to do is edit the files and save them. The software uploads right after save.
There are 2 things to remember:
First, it only works on a MAC.
Second, when connecting to your store or test store, make sure to use the store login credentials and not your partner account credentials.
Get it here: Desktop Theme Editor