With XState Inspect package and the example:

after creating the Websocket server (like in the link that was shared earlier) the easiest method for me to get the visualizer is to just open https://statecharts.io/inspect?server=localhost:8888 (note the server GET attribute) in a browser

— @thomasaull link

Related issues:

• [@xstate/inspect] Add receivers for window and websockets statelyai/xstate#1770
• xstate-inspect server example fails with latest version of ws ^8.0.0 statelyai/xstate#2698
• "An unexpected error has occurred" with statecharts.io/inspect statelyai/xstate#2931