using the work of jsonzilla in https://github.com/jsonzilla/vtt_to_srt2 repository i make this gtk gui for the the the script to convert vtt into srt files.

i use gtk 2 and Gtk 3 to build this gui

to run this gui from msys on windows use :

./gui3

for Gtk 3 and python 3

./gui2

for Gtk 2 and python 2