EDIT: Why not a Qt wallet dev ?
In the meantime, I'll continue correspondence and get in touch with other people based on community feedback to let them know Decred developers are standing by and ready to help anyone interested in integration. There's also RPC work and developers have looked at a web dashboard so the network is visible and interpretable by anyone. And of course, everything built is open-source, so anyone can work with it and improve it.
You can use the web wallet too it is working pretty well and it is GUI
It is not really on a webpage the platform is served online but none of your data is stored in any server. All of your info is stored locally in cookies you just use the webpage to connect to the blockchain