Enaml UI builder with live WYSIWYG editor
Source : https://github.com/Kochise/enaml-studio
Get Python
for Windows : https://www.python.org/downloads/windows/
Uncompress/install it where you need.
\>cd %PYTHONPATH%
\python>python -m pip install "enaml-studio"
It will install https://github.com/nucleic/enaml and some more dependencies.