Actually, it has been out for a while...
It is not RenPy .... but it exports to HTML so your novel can be viewed anywhere...
if placed into a .zip, it can be viewed on itch.io ... see sample project below.
Very very simple to use. Sorry, windows download only ...
And there is a demo project ....
Baby Brother which is "Safe for work" ...
I felt this project (VNCreator) was worthy of some extra love because it has an extra use ...
If you like to write JS games ... (I do, using Notepad++) and you need a live server for testing JS code,
VNCreator has a built-in server that works great for that. It is not documented.... The way
you would use VNCreator as an HTML server is to start VNCreator, does not need a project or anything,
from the menu, select Start Server ... done, ready to go ... Create a folder in the appropriate directory...
place your HTML project there... from Notepad++ (or whatever you use)
Run "http://127.0.0.1/yourfolder/yourmain.html" . When you shut down VNCreator, the server shuts down...
You can then use the debugger in whichever is your default browser ...
EDIT: You can also just enter the run command inside the browser address bar....