diff --git a/src/corelib/Qt6WasmMacros.cmake b/src/corelib/Qt6WasmMacros.cmake
index 6e004dc862a..3ec4ed58582 100644
--- a/src/corelib/Qt6WasmMacros.cmake
+++ b/src/corelib/Qt6WasmMacros.cmake
@@ -23,6 +23,14 @@ function(_qt_internal_wasm_add_target_helpers target)
 
         set(APPNAME ${_target_output_name})
 
+        # Shared library builds preload plugins and qml imports by default.
+        # The json files are generated by scripts in qtbase/util/wasm/preload
+        if (QT_FEATURE_shared)
+            set(PRELOAD "preload: ['qt_plugins.json', 'qt_qml_imports.json'],")
+        else()
+            set(PRELOAD "")
+        endif()
+
         get_target_property(target_output_directory ${target} RUNTIME_OUTPUT_DIRECTORY)
 
         get_target_property(is_test ${target} _qt_is_test_executable)
diff --git a/src/plugins/platforms/wasm/wasm_shell.html b/src/plugins/platforms/wasm/wasm_shell.html
index 99248901220..26d914ea230 100644
--- a/src/plugins/platforms/wasm/wasm_shell.html
+++ b/src/plugins/platforms/wasm/wasm_shell.html
@@ -59,6 +59,7 @@
                         },
                         entryFunction: window.createQtAppInstance,
                         containerElements: [screen],
+                        @PRELOAD@
                     }
                 });
             } catch (e) {