NiceGUI. Picture this: You’ve got an existing Python app that runs as a command-line application or web service, but you want to add a web-based UI to it—and fast.

Designed for speed and simplicity, Sanic works with Python 3.6 or higher and uses Python’s async/await syntax (available as of Python 3.5) to let you create efficient web applications.

Reflex has built an open source framework to make it easy to turn Python code into a we app. Today it announced a $5M seed investment.