diff --git a/packages/vite/src/client/client.ts b/packages/vite/src/client/client.ts
index 401883176f454d..cc09f8b8f175db 100644
--- a/packages/vite/src/client/client.ts
+++ b/packages/vite/src/client/client.ts
@@ -81,7 +81,7 @@ function setupWebSocket(
     'open',
     () => {
       isOpened = true
-      notifyListeners('vite:ws:connect', socket)
+      notifyListeners('vite:ws:connect', { webSocket: socket })
     },
     { once: true },
   )
@@ -100,7 +100,7 @@ function setupWebSocket(
       return
     }
 
-    notifyListeners('vite:ws:disconnect', socket)
+    notifyListeners('vite:ws:disconnect', { webSocket: socket })
 
     console.log(`[vite] server connection lost. polling for restart...`)
     await waitForSuccessfulPing(protocol, hostAndPath)
diff --git a/packages/vite/types/customEvent.d.ts b/packages/vite/types/customEvent.d.ts
index 6bbb18e8f9f343..a72c1b85fc1ad0 100644
--- a/packages/vite/types/customEvent.d.ts
+++ b/packages/vite/types/customEvent.d.ts
@@ -12,8 +12,18 @@ export interface CustomEventMap {
   'vite:beforeFullReload': FullReloadPayload
   'vite:error': ErrorPayload
   'vite:invalidate': InvalidatePayload
-  'vite:ws:connect': WebSocket
-  'vite:ws:disconnect': WebSocket
+  'vite:ws:connect': WebSocketConnectionPayload
+  'vite:ws:disconnect': WebSocketConnectionPayload
+}
+
+export interface WebSocketConnectionPayload {
+  /**
+   * @experimental
+   * We expose this instance experimentally to see potential usage.
+   * This might be removed in the future if we didn't find reasonable use cases.
+   * If you find this useful, please open an issue with details so we can discuss and make it stable API.
+   */
+  webSocket: WebSocket
 }
 
 export interface InvalidatePayload {