diff --git a/Userland/Libraries/LibWeb/HTML/WorkerNavigator.cpp b/Userland/Libraries/LibWeb/HTML/WorkerNavigator.cpp
index 73607051847..2c7ef220fb7 100644
--- a/Userland/Libraries/LibWeb/HTML/WorkerNavigator.cpp
+++ b/Userland/Libraries/LibWeb/HTML/WorkerNavigator.cpp
@@ -37,6 +37,7 @@ void WorkerNavigator::visit_edges(Cell::Visitor& visitor)
 {
     Base::visit_edges(visitor);
     visitor.visit(m_media_capabilities);
+    visitor.visit(m_service_worker_container);
 }
 
 JS::NonnullGCPtr<MediaCapabilitiesAPI::MediaCapabilities> WorkerNavigator::media_capabilities()
@@ -46,4 +47,11 @@ JS::NonnullGCPtr<MediaCapabilitiesAPI::MediaCapabilities> WorkerNavigator::media
     return *m_media_capabilities;
 }
 
+JS::NonnullGCPtr<ServiceWorkerContainer> WorkerNavigator::service_worker()
+{
+    if (!m_service_worker_container)
+        m_service_worker_container = heap().allocate<ServiceWorkerContainer>(realm(), realm());
+    return *m_service_worker_container;
+}
+
 }
diff --git a/Userland/Libraries/LibWeb/HTML/WorkerNavigator.h b/Userland/Libraries/LibWeb/HTML/WorkerNavigator.h
index 5bbb96ca80f..51d7dc5f9d8 100644
--- a/Userland/Libraries/LibWeb/HTML/WorkerNavigator.h
+++ b/Userland/Libraries/LibWeb/HTML/WorkerNavigator.h
@@ -12,6 +12,7 @@
 #include <LibWeb/HTML/NavigatorID.h>
 #include <LibWeb/HTML/NavigatorLanguage.h>
 #include <LibWeb/HTML/NavigatorOnLine.h>
+#include <LibWeb/HTML/ServiceWorkerContainer.h>
 #include <LibWeb/MediaCapabilitiesAPI/MediaCapabilities.h>
 #include <LibWeb/StorageAPI/NavigatorStorage.h>
 
@@ -29,6 +30,8 @@ class WorkerNavigator : public Bindings::PlatformObject
 public:
     [[nodiscard]] static JS::NonnullGCPtr<WorkerNavigator> create(WorkerGlobalScope&);
 
+    JS::NonnullGCPtr<ServiceWorkerContainer> service_worker();
+
     virtual ~WorkerNavigator() override;
 
     JS::NonnullGCPtr<MediaCapabilitiesAPI::MediaCapabilities> media_capabilities();
@@ -44,6 +47,8 @@ private:
 
     // https://w3c.github.io/media-capabilities/#dom-workernavigator-mediacapabilities
     JS::GCPtr<MediaCapabilitiesAPI::MediaCapabilities> m_media_capabilities;
+
+    JS::GCPtr<ServiceWorkerContainer> m_service_worker_container;
 };
 
 }
diff --git a/Userland/Libraries/LibWeb/HTML/WorkerNavigator.idl b/Userland/Libraries/LibWeb/HTML/WorkerNavigator.idl
index 6356f9e6cef..86bccd7652d 100644
--- a/Userland/Libraries/LibWeb/HTML/WorkerNavigator.idl
+++ b/Userland/Libraries/LibWeb/HTML/WorkerNavigator.idl
@@ -10,6 +10,9 @@
 interface WorkerNavigator {
     // https://w3c.github.io/media-capabilities/#dom-workernavigator-mediacapabilities
     [SameObject] readonly attribute MediaCapabilities mediaCapabilities;
+
+    // https://w3c.github.io/ServiceWorker/#navigator-serviceworker
+    [SecureContext, SameObject] readonly attribute ServiceWorkerContainer serviceWorker;
 };
 
 WorkerNavigator includes NavigatorID;