- Search and install 'PlantUML' extension in the vscode app.
- After installing PlantUML scroll down in their page, then install the Java runtime that will allow you to render the image.
- Open plant uml file in vscode and press CTRL (CMD) + P select 'Extract Diagram Source'
That's it 🎉
*You can find the more commands in here https://marketplace.visualstudio.com/items?itemName=jebbs.plantuml