diff --git a/Meta/gn/secondary/Userland/Libraries/LibWeb/Internals/BUILD.gn b/Meta/gn/secondary/Userland/Libraries/LibWeb/Internals/BUILD.gn
index b68609ef1f..c97eb62c99 100644
--- a/Meta/gn/secondary/Userland/Libraries/LibWeb/Internals/BUILD.gn
+++ b/Meta/gn/secondary/Userland/Libraries/LibWeb/Internals/BUILD.gn
@@ -1,5 +1,8 @@
 source_set("Internals") {
   configs += [ "//Userland/Libraries/LibWeb:configs" ]
   deps = [ "//Userland/Libraries/LibWeb:all_generated" ]
-  sources = [ "Internals.cpp" ]
+  sources = [
+    "Inspector.cpp",
+    "Internals.cpp",
+  ]
 }
diff --git a/Meta/gn/secondary/Userland/Libraries/LibWeb/idl_files.gni b/Meta/gn/secondary/Userland/Libraries/LibWeb/idl_files.gni
index ca18948907..6ca47050da 100644
--- a/Meta/gn/secondary/Userland/Libraries/LibWeb/idl_files.gni
+++ b/Meta/gn/secondary/Userland/Libraries/LibWeb/idl_files.gni
@@ -216,6 +216,7 @@ standard_idl_files = [
   "//Userland/Libraries/LibWeb/HTML/WorkerLocation.idl",
   "//Userland/Libraries/LibWeb/HTML/WorkerNavigator.idl",
   "//Userland/Libraries/LibWeb/HighResolutionTime/Performance.idl",
+  "//Userland/Libraries/LibWeb/Internals/Inspector.idl",
   "//Userland/Libraries/LibWeb/Internals/Internals.idl",
   "//Userland/Libraries/LibWeb/IntersectionObserver/IntersectionObserver.idl",
   "//Userland/Libraries/LibWeb/IntersectionObserver/IntersectionObserverEntry.idl",
diff --git a/Userland/Libraries/LibWeb/CMakeLists.txt b/Userland/Libraries/LibWeb/CMakeLists.txt
index 70cbf5deda..94c64697dd 100644
--- a/Userland/Libraries/LibWeb/CMakeLists.txt
+++ b/Userland/Libraries/LibWeb/CMakeLists.txt
@@ -415,6 +415,7 @@ set(SOURCES
     Infra/ByteSequences.cpp
     Infra/JSON.cpp
     Infra/Strings.cpp
+    Internals/Inspector.cpp
     Internals/Internals.cpp
     IntersectionObserver/IntersectionObserver.cpp
     IntersectionObserver/IntersectionObserverEntry.cpp
diff --git a/Userland/Libraries/LibWeb/Forward.h b/Userland/Libraries/LibWeb/Forward.h
index 9f75d87867..688b7d4365 100644
--- a/Userland/Libraries/LibWeb/Forward.h
+++ b/Userland/Libraries/LibWeb/Forward.h
@@ -482,6 +482,7 @@ class Performance;
 }
 
 namespace Web::Internals {
+class Inspector;
 class Internals;
 }
 
diff --git a/Userland/Libraries/LibWeb/HTML/Window.cpp b/Userland/Libraries/LibWeb/HTML/Window.cpp
index 49c34b89d4..0b368c0ea6 100644
--- a/Userland/Libraries/LibWeb/HTML/Window.cpp
+++ b/Userland/Libraries/LibWeb/HTML/Window.cpp
@@ -60,6 +60,7 @@
 #include <LibWeb/HighResolutionTime/TimeOrigin.h>
 #include <LibWeb/Infra/Base64.h>
 #include <LibWeb/Infra/CharacterTypes.h>
+#include <LibWeb/Internals/Inspector.h>
 #include <LibWeb/Internals/Internals.h>
 #include <LibWeb/Layout/Viewport.h>
 #include <LibWeb/Page/Page.h>
@@ -781,8 +782,14 @@ WebIDL::ExceptionOr<JS::NonnullGCPtr<WebIDL::CallbackType>> Window::byte_length_
     return JS::NonnullGCPtr { *m_byte_length_queuing_strategy_size_function };
 }
 
+static bool s_inspector_object_exposed = false;
 static bool s_internals_object_exposed = false;
 
+void Window::set_inspector_object_exposed(bool exposed)
+{
+    s_inspector_object_exposed = exposed;
+}
+
 void Window::set_internals_object_exposed(bool exposed)
 {
     s_internals_object_exposed = exposed;
@@ -798,6 +805,8 @@ WebIDL::ExceptionOr<void> Window::initialize_web_interfaces(Badge<WindowEnvironm
     Bindings::WindowGlobalMixin::initialize(realm, *this);
     WindowOrWorkerGlobalScopeMixin::initialize(realm);
 
+    if (s_inspector_object_exposed)
+        define_direct_property("inspector", heap().allocate<Internals::Inspector>(realm, realm), JS::default_attributes);
     if (s_internals_object_exposed)
         define_direct_property("internals", heap().allocate<Internals::Internals>(realm, realm), JS::default_attributes);
 
diff --git a/Userland/Libraries/LibWeb/HTML/Window.h b/Userland/Libraries/LibWeb/HTML/Window.h
index c386af80f4..ddf20b0c12 100644
--- a/Userland/Libraries/LibWeb/HTML/Window.h
+++ b/Userland/Libraries/LibWeb/HTML/Window.h
@@ -196,6 +196,7 @@ public:
     HighResolutionTime::DOMHighResTimeStamp get_last_activation_timestamp() const { return m_last_activation_timestamp; }
     void set_last_activation_timestamp(HighResolutionTime::DOMHighResTimeStamp timestamp) { m_last_activation_timestamp = timestamp; }
 
+    static void set_inspector_object_exposed(bool);
     static void set_internals_object_exposed(bool);
 
     [[nodiscard]] OrderedHashMap<String, JS::NonnullGCPtr<Navigable>> document_tree_child_navigable_target_name_property_set();
diff --git a/Userland/Libraries/LibWeb/Internals/Inspector.cpp b/Userland/Libraries/LibWeb/Internals/Inspector.cpp
new file mode 100644
index 0000000000..12783c3e9f
--- /dev/null
+++ b/Userland/Libraries/LibWeb/Internals/Inspector.cpp
@@ -0,0 +1,50 @@
+/*
+ * Copyright (c) 2023, Tim Flynn <trflynn89@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <LibJS/Runtime/Realm.h>
+#include <LibJS/Runtime/VM.h>
+#include <LibWeb/Bindings/InspectorPrototype.h>
+#include <LibWeb/Bindings/Intrinsics.h>
+#include <LibWeb/CSS/Selector.h>
+#include <LibWeb/HTML/BrowsingContext.h>
+#include <LibWeb/HTML/Window.h>
+#include <LibWeb/Internals/Inspector.h>
+#include <LibWeb/Page/Page.h>
+
+namespace Web::Internals {
+
+JS_DEFINE_ALLOCATOR(Inspector);
+
+Inspector::Inspector(JS::Realm& realm)
+    : Bindings::PlatformObject(realm)
+{
+}
+
+Inspector::~Inspector() = default;
+
+void Inspector::initialize(JS::Realm& realm)
+{
+    Base::initialize(realm);
+    Object::set_prototype(&Bindings::ensure_web_prototype<Bindings::InspectorPrototype>(realm, "Inspector"));
+}
+
+void Inspector::inspector_loaded()
+{
+    if (auto* page = global_object().browsing_context()->page())
+        page->client().inspector_did_load();
+}
+
+void Inspector::inspect_dom_node(i32 node_id, Optional<i32> const& pseudo_element)
+{
+    if (auto* page = global_object().browsing_context()->page()) {
+        page->client().inspector_did_select_dom_node(node_id, pseudo_element.map([](auto value) {
+            VERIFY(value < to_underlying(Web::CSS::Selector::PseudoElement::PseudoElementCount));
+            return static_cast<Web::CSS::Selector::PseudoElement>(value);
+        }));
+    }
+}
+
+}
diff --git a/Userland/Libraries/LibWeb/Internals/Inspector.h b/Userland/Libraries/LibWeb/Internals/Inspector.h
new file mode 100644
index 0000000000..86d053c7ed
--- /dev/null
+++ b/Userland/Libraries/LibWeb/Internals/Inspector.h
@@ -0,0 +1,30 @@
+/*
+ * Copyright (c) 2023, Tim Flynn <trflynn89@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <LibJS/Forward.h>
+#include <LibWeb/Bindings/PlatformObject.h>
+
+namespace Web::Internals {
+
+class Inspector final : public Bindings::PlatformObject {
+    WEB_PLATFORM_OBJECT(Inspector, Bindings::PlatformObject);
+    JS_DECLARE_ALLOCATOR(Inspector);
+
+public:
+    virtual ~Inspector() override;
+
+    void inspector_loaded();
+    void inspect_dom_node(i32 node_id, Optional<i32> const& pseudo_element);
+
+private:
+    explicit Inspector(JS::Realm&);
+
+    virtual void initialize(JS::Realm&) override;
+};
+
+}
diff --git a/Userland/Libraries/LibWeb/Internals/Inspector.idl b/Userland/Libraries/LibWeb/Internals/Inspector.idl
new file mode 100644
index 0000000000..e514987456
--- /dev/null
+++ b/Userland/Libraries/LibWeb/Internals/Inspector.idl
@@ -0,0 +1,6 @@
+[Exposed=Nobody] interface Inspector {
+
+    undefined inspectorLoaded();
+    undefined inspectDOMNode(long nodeID, optional long pseudoElement);
+
+};
diff --git a/Userland/Libraries/LibWeb/Page/Page.h b/Userland/Libraries/LibWeb/Page/Page.h
index a68c7a5c77..003bf234eb 100644
--- a/Userland/Libraries/LibWeb/Page/Page.h
+++ b/Userland/Libraries/LibWeb/Page/Page.h
@@ -24,6 +24,7 @@
 #include <LibIPC/Forward.h>
 #include <LibJS/Heap/Handle.h>
 #include <LibWeb/CSS/PreferredColorScheme.h>
+#include <LibWeb/CSS/Selector.h>
 #include <LibWeb/Cookie/Cookie.h>
 #include <LibWeb/Forward.h>
 #include <LibWeb/HTML/ActivateTab.h>
@@ -260,6 +261,9 @@ public:
 
     virtual void page_did_insert_clipboard_entry([[maybe_unused]] String data, [[maybe_unused]] String presentation_style, [[maybe_unused]] String mime_type) { }
 
+    virtual void inspector_did_load() { }
+    virtual void inspector_did_select_dom_node([[maybe_unused]] i32 node_id, [[maybe_unused]] Optional<CSS::Selector::PseudoElement> const& pseudo_element) { }
+
 protected:
     virtual ~PageClient() = default;
 };
diff --git a/Userland/Libraries/LibWeb/idl_files.cmake b/Userland/Libraries/LibWeb/idl_files.cmake
index 87b044973b..1cf11d88ef 100644
--- a/Userland/Libraries/LibWeb/idl_files.cmake
+++ b/Userland/Libraries/LibWeb/idl_files.cmake
@@ -202,6 +202,7 @@ libweb_js_bindings(HTML/WorkerGlobalScope)
 libweb_js_bindings(HTML/WorkerLocation)
 libweb_js_bindings(HTML/WorkerNavigator)
 libweb_js_bindings(HighResolutionTime/Performance)
+libweb_js_bindings(Internals/Inspector)
 libweb_js_bindings(Internals/Internals)
 libweb_js_bindings(IntersectionObserver/IntersectionObserver)
 libweb_js_bindings(IntersectionObserver/IntersectionObserverEntry)
diff --git a/Userland/Libraries/LibWebView/ViewImplementation.cpp b/Userland/Libraries/LibWebView/ViewImplementation.cpp
index 26cd98a458..2df40f3af8 100644
--- a/Userland/Libraries/LibWebView/ViewImplementation.cpp
+++ b/Userland/Libraries/LibWebView/ViewImplementation.cpp
@@ -383,4 +383,9 @@ void ViewImplementation::use_native_user_style_sheet()
     set_user_style_sheet(MUST(String::from_utf8(native_stylesheet_source)));
 }
 
+void ViewImplementation::enable_inspector_prototype()
+{
+    client().async_enable_inspector_prototype();
+}
+
 }
diff --git a/Userland/Libraries/LibWebView/ViewImplementation.h b/Userland/Libraries/LibWebView/ViewImplementation.h
index 6c8bb14d52..5bdabd99cb 100644
--- a/Userland/Libraries/LibWebView/ViewImplementation.h
+++ b/Userland/Libraries/LibWebView/ViewImplementation.h
@@ -106,6 +106,8 @@ public:
     // native GUI widgets as possible.
     void use_native_user_style_sheet();
 
+    void enable_inspector_prototype();
+
     Function<void(Gfx::IntSize)> on_did_layout;
     Function<void()> on_ready_to_paint;
     Function<String(Web::HTML::ActivateTab)> on_new_tab;
@@ -161,6 +163,8 @@ public:
     Function<void()> on_text_test_finish;
     Function<void(Gfx::Color)> on_theme_color_change;
     Function<void(String const&, String const&, String const&)> on_insert_clipboard_entry;
+    Function<void()> on_inspector_loaded;
+    Function<void(i32, Optional<Web::CSS::Selector::PseudoElement> const&)> on_inspector_selected_dom_node;
 
     virtual Gfx::IntRect viewport_rect() const = 0;
     virtual Gfx::IntPoint to_content_position(Gfx::IntPoint widget_position) const = 0;
diff --git a/Userland/Libraries/LibWebView/WebContentClient.cpp b/Userland/Libraries/LibWebView/WebContentClient.cpp
index 1033fd3697..5a1ece2f39 100644
--- a/Userland/Libraries/LibWebView/WebContentClient.cpp
+++ b/Userland/Libraries/LibWebView/WebContentClient.cpp
@@ -402,4 +402,16 @@ void WebContentClient::did_insert_clipboard_entry(String const& data, String con
         m_view.on_insert_clipboard_entry(data, presentation_style, mime_type);
 }
 
+void WebContentClient::inspector_did_load()
+{
+    if (m_view.on_inspector_loaded)
+        m_view.on_inspector_loaded();
+}
+
+void WebContentClient::inspector_did_select_dom_node(i32 node_id, Optional<Web::CSS::Selector::PseudoElement> const& pseudo_element)
+{
+    if (m_view.on_inspector_selected_dom_node)
+        m_view.on_inspector_selected_dom_node(node_id, pseudo_element);
+}
+
 }
diff --git a/Userland/Libraries/LibWebView/WebContentClient.h b/Userland/Libraries/LibWebView/WebContentClient.h
index 41e21e563a..194d1682f8 100644
--- a/Userland/Libraries/LibWebView/WebContentClient.h
+++ b/Userland/Libraries/LibWebView/WebContentClient.h
@@ -86,6 +86,8 @@ private:
     virtual void did_finish_text_test() override;
     virtual void did_change_theme_color(Gfx::Color color) override;
     virtual void did_insert_clipboard_entry(String const& data, String const& presentation_style, String const& mime_type) override;
+    virtual void inspector_did_load() override;
+    virtual void inspector_did_select_dom_node(i32 node_id, Optional<Web::CSS::Selector::PseudoElement> const& pseudo_element) override;
 
     ViewImplementation& m_view;
 };
diff --git a/Userland/Services/WebContent/ConnectionFromClient.cpp b/Userland/Services/WebContent/ConnectionFromClient.cpp
index 3af096a068..0e8ec1a875 100644
--- a/Userland/Services/WebContent/ConnectionFromClient.cpp
+++ b/Userland/Services/WebContent/ConnectionFromClient.cpp
@@ -929,4 +929,9 @@ void ConnectionFromClient::inspect_accessibility_tree()
     }
 }
 
+void ConnectionFromClient::enable_inspector_prototype()
+{
+    Web::HTML::Window::set_inspector_object_exposed(true);
+}
+
 }
diff --git a/Userland/Services/WebContent/ConnectionFromClient.h b/Userland/Services/WebContent/ConnectionFromClient.h
index b989f5c881..d3aa1981a0 100644
--- a/Userland/Services/WebContent/ConnectionFromClient.h
+++ b/Userland/Services/WebContent/ConnectionFromClient.h
@@ -106,6 +106,8 @@ private:
 
     virtual void set_user_style(String const&) override;
 
+    virtual void enable_inspector_prototype() override;
+
     virtual Messages::WebContentServer::TakeDocumentScreenshotResponse take_document_screenshot() override;
 
     virtual Messages::WebContentServer::GetLocalStorageEntriesResponse get_local_storage_entries() override;
diff --git a/Userland/Services/WebContent/PageHost.cpp b/Userland/Services/WebContent/PageHost.cpp
index d8078a71b4..e58bd402e2 100644
--- a/Userland/Services/WebContent/PageHost.cpp
+++ b/Userland/Services/WebContent/PageHost.cpp
@@ -503,4 +503,14 @@ void PageHost::page_did_insert_clipboard_entry(String data, String presentation_
     m_client.async_did_insert_clipboard_entry(move(data), move(presentation_style), move(mime_type));
 }
 
+void PageHost::inspector_did_load()
+{
+    m_client.async_inspector_did_load();
+}
+
+void PageHost::inspector_did_select_dom_node(i32 node_id, Optional<Web::CSS::Selector::PseudoElement> const& pseudo_element)
+{
+    m_client.async_inspector_did_select_dom_node(node_id, pseudo_element);
+}
+
 }
diff --git a/Userland/Services/WebContent/PageHost.h b/Userland/Services/WebContent/PageHost.h
index b47ee99ab5..9425f473e6 100644
--- a/Userland/Services/WebContent/PageHost.h
+++ b/Userland/Services/WebContent/PageHost.h
@@ -121,6 +121,8 @@ private:
     virtual void page_did_finish_text_test() override;
     virtual void page_did_change_theme_color(Gfx::Color color) override;
     virtual void page_did_insert_clipboard_entry(String data, String presentation_style, String mime_type) override;
+    virtual void inspector_did_load() override;
+    virtual void inspector_did_select_dom_node(i32 node_id, Optional<Web::CSS::Selector::PseudoElement> const& pseudo_element) override;
 
     explicit PageHost(ConnectionFromClient&);
 
diff --git a/Userland/Services/WebContent/WebContentClient.ipc b/Userland/Services/WebContent/WebContentClient.ipc
index 1f44c60ad3..c35fc5ef06 100644
--- a/Userland/Services/WebContent/WebContentClient.ipc
+++ b/Userland/Services/WebContent/WebContentClient.ipc
@@ -4,6 +4,7 @@
 #include <LibGfx/ShareableBitmap.h>
 #include <LibWeb/Cookie/Cookie.h>
 #include <LibWeb/Cookie/ParsedCookie.h>
+#include <LibWeb/CSS/Selector.h>
 #include <LibWeb/HTML/ActivateTab.h>
 #include <LibWeb/Page/Page.h>
 
@@ -69,4 +70,7 @@ endpoint WebContentClient
 
     did_finish_text_test() =|
 
+    inspector_did_load() =|
+    inspector_did_select_dom_node(i32 node_id, Optional<Web::CSS::Selector::PseudoElement> pseudo_element) =|
+
 }
diff --git a/Userland/Services/WebContent/WebContentServer.ipc b/Userland/Services/WebContent/WebContentServer.ipc
index 72a23fbb38..bee54d22df 100644
--- a/Userland/Services/WebContent/WebContentServer.ipc
+++ b/Userland/Services/WebContent/WebContentServer.ipc
@@ -86,4 +86,6 @@ endpoint WebContentServer
     toggle_media_controls_state() =|
 
     set_user_style(String source) =|
+
+    enable_inspector_prototype() =|
 }