Is there a visual interface for Mermaid?

I can blast out auto-reflowing flowcharts in Flying Logic on a keyboard but it's moved to a subscription model that doesn't make sense for my irregular use.

Seeing the connections in real time really helps with my thought process.

Using the extension, you can see your changes from the Mermaid Code rendered as a diagram in real-time.

If you also want to interact with the diagram itself to make the changes, you can do that using the Mermaid Chart Playground: https://www.mermaidchart.com/play