There is a Vue-specific editor on CodePen, in case you didn't know that. It can even pull in *other* Vue Pens so you can peice together components:
https://codepen.io/chriscoyier/pen/oNYBNyZ
If you prefer looking at components all in the same area, Projects also works:
https://codepen.io/chriscoyier/project/editor/XMakLV

https://twitter.com/CodePen/status/1665453118925012992