diff --git a/Libraries/LibDevTools/Actors/WalkerActor.cpp b/Libraries/LibDevTools/Actors/WalkerActor.cpp
index 0109efa04fb..6b6789cde0f 100644
--- a/Libraries/LibDevTools/Actors/WalkerActor.cpp
+++ b/Libraries/LibDevTools/Actors/WalkerActor.cpp
@@ -214,6 +214,36 @@ void WalkerActor::handle_message(StringView type, JsonObject const& message)
         return;
     }
 
+    if (type == "outerHTML"sv) {
+        auto node = message.get_string("node"sv);
+        if (!node.has_value()) {
+            send_missing_parameter_error("node"sv);
+            return;
+        }
+
+        if (auto dom_node = WalkerActor::dom_node_for(*this, *node); dom_node.has_value()) {
+            auto block_token = block_responses();
+
+            devtools().delegate().get_dom_node_outer_html(
+                dom_node->tab->description(), dom_node->identifier.id,
+                [weak_self = make_weak_ptr<WalkerActor>(), block_token = move(block_token)](ErrorOr<String> html) mutable {
+                    if (html.is_error()) {
+                        dbgln_if(DEVTOOLS_DEBUG, "Unable to edit DOM node: {}", html.error());
+                        return;
+                    }
+
+                    if (auto self = weak_self.strong_ref()) {
+                        JsonObject message;
+                        message.set("from"sv, self->name());
+                        message.set("value"sv, html.release_value());
+                        self->send_message(move(message), move(block_token));
+                    }
+                });
+        }
+
+        return;
+    }
+
     if (type == "previousSibling"sv) {
         auto node = message.get_string("node"sv);
         if (!node.has_value()) {
@@ -307,6 +337,41 @@ void WalkerActor::handle_message(StringView type, JsonObject const& message)
         return;
     }
 
+    if (type == "setOuterHTML"sv) {
+        auto node = message.get_string("node"sv);
+        if (!node.has_value()) {
+            send_missing_parameter_error("node"sv);
+            return;
+        }
+
+        auto value = message.get_string("value"sv);
+        if (!value.has_value()) {
+            send_missing_parameter_error("value"sv);
+            return;
+        }
+
+        if (auto dom_node = WalkerActor::dom_node_for(*this, *node); dom_node.has_value()) {
+            auto block_token = block_responses();
+
+            devtools().delegate().set_dom_node_outer_html(
+                dom_node->tab->description(), dom_node->identifier.id, value.release_value(),
+                [weak_self = make_weak_ptr<WalkerActor>(), block_token = move(block_token)](ErrorOr<Web::UniqueNodeID> node_id) mutable {
+                    if (node_id.is_error()) {
+                        dbgln_if(DEVTOOLS_DEBUG, "Unable to edit DOM node: {}", node_id.error());
+                        return;
+                    }
+
+                    if (auto self = weak_self.strong_ref()) {
+                        JsonObject message;
+                        message.set("from"sv, self->name());
+                        self->send_message(move(message), move(block_token));
+                    }
+                });
+        }
+
+        return;
+    }
+
     if (type == "watchRootNode"sv) {
         response.set("type"sv, "root-available"sv);
         response.set("node"sv, serialize_root());
diff --git a/Libraries/LibDevTools/DevToolsDelegate.h b/Libraries/LibDevTools/DevToolsDelegate.h
index c24152c74ee..418602dd6cf 100644
--- a/Libraries/LibDevTools/DevToolsDelegate.h
+++ b/Libraries/LibDevTools/DevToolsDelegate.h
@@ -41,7 +41,10 @@ public:
     virtual void listen_for_dom_mutations(TabDescription const&, OnDOMMutationReceived) const { }
     virtual void stop_listening_for_dom_mutations(TabDescription const&) const { }
 
+    using OnDOMNodeHTMLReceived = Function<void(ErrorOr<String>)>;
     using OnDOMNodeEditComplete = Function<void(ErrorOr<Web::UniqueNodeID>)>;
+    virtual void get_dom_node_outer_html(TabDescription const&, Web::UniqueNodeID, OnDOMNodeHTMLReceived) const { }
+    virtual void set_dom_node_outer_html(TabDescription const&, Web::UniqueNodeID, String const&, OnDOMNodeEditComplete) const { }
     virtual void set_dom_node_text(TabDescription const&, Web::UniqueNodeID, String const&, OnDOMNodeEditComplete) const { }
     virtual void set_dom_node_tag(TabDescription const&, Web::UniqueNodeID, String const&, OnDOMNodeEditComplete) const { }
     virtual void add_dom_node_attributes(TabDescription const&, Web::UniqueNodeID, ReadonlySpan<WebView::Attribute>, OnDOMNodeEditComplete) const { }
diff --git a/Libraries/LibWebView/Application.cpp b/Libraries/LibWebView/Application.cpp
index adf1ffdd628..7df0bd98d77 100644
--- a/Libraries/LibWebView/Application.cpp
+++ b/Libraries/LibWebView/Application.cpp
@@ -504,6 +504,29 @@ static void edit_dom_node(DevTools::TabDescription const& description, Applicati
     edit(*view);
 }
 
+void Application::get_dom_node_outer_html(DevTools::TabDescription const& description, Web::UniqueNodeID node_id, OnDOMNodeHTMLReceived on_complete) const
+{
+    auto view = ViewImplementation::find_view_by_id(description.id);
+    if (!view.has_value()) {
+        on_complete(Error::from_string_literal("Unable to locate tab"));
+        return;
+    }
+
+    view->on_received_dom_node_html = [&view = *view, on_complete = move(on_complete)](auto html) {
+        view.on_received_dom_node_html = nullptr;
+        on_complete(html);
+    };
+
+    view->get_dom_node_outer_html(node_id);
+}
+
+void Application::set_dom_node_outer_html(DevTools::TabDescription const& description, Web::UniqueNodeID node_id, String const& value, OnDOMNodeEditComplete on_complete) const
+{
+    edit_dom_node(description, move(on_complete), [&](auto& view) {
+        view.set_dom_node_outer_html(node_id, value);
+    });
+}
+
 void Application::set_dom_node_text(DevTools::TabDescription const& description, Web::UniqueNodeID node_id, String const& value, OnDOMNodeEditComplete on_complete) const
 {
     edit_dom_node(description, move(on_complete), [&](auto& view) {
diff --git a/Libraries/LibWebView/Application.h b/Libraries/LibWebView/Application.h
index 1595f8a7d42..6c67bce0cd6 100644
--- a/Libraries/LibWebView/Application.h
+++ b/Libraries/LibWebView/Application.h
@@ -100,6 +100,8 @@ private:
     virtual void clear_highlighted_dom_node(DevTools::TabDescription const&) const override;
     virtual void listen_for_dom_mutations(DevTools::TabDescription const&, OnDOMMutationReceived) const override;
     virtual void stop_listening_for_dom_mutations(DevTools::TabDescription const&) const override;
+    virtual void get_dom_node_outer_html(DevTools::TabDescription const&, Web::UniqueNodeID, OnDOMNodeHTMLReceived) const override;
+    virtual void set_dom_node_outer_html(DevTools::TabDescription const&, Web::UniqueNodeID, String const&, OnDOMNodeEditComplete) const override;
     virtual void set_dom_node_text(DevTools::TabDescription const&, Web::UniqueNodeID, String const&, OnDOMNodeEditComplete) const override;
     virtual void set_dom_node_tag(DevTools::TabDescription const&, Web::UniqueNodeID, String const&, OnDOMNodeEditComplete) const override;
     virtual void add_dom_node_attributes(DevTools::TabDescription const&, Web::UniqueNodeID, ReadonlySpan<Attribute>, OnDOMNodeEditComplete) const override;
diff --git a/Libraries/LibWebView/InspectorClient.cpp b/Libraries/LibWebView/InspectorClient.cpp
index 1eb52698ee7..c27f02c8ee6 100644
--- a/Libraries/LibWebView/InspectorClient.cpp
+++ b/Libraries/LibWebView/InspectorClient.cpp
@@ -368,7 +368,7 @@ void InspectorClient::context_menu_copy_dom_node()
 {
     VERIFY(m_context_menu_data.has_value());
 
-    m_content_web_view.get_dom_node_html(m_context_menu_data->dom_node_id);
+    m_content_web_view.get_dom_node_outer_html(m_context_menu_data->dom_node_id);
     m_context_menu_data.clear();
 }
 
diff --git a/Libraries/LibWebView/ViewImplementation.cpp b/Libraries/LibWebView/ViewImplementation.cpp
index 3ae345ebe32..aacaea31d10 100644
--- a/Libraries/LibWebView/ViewImplementation.cpp
+++ b/Libraries/LibWebView/ViewImplementation.cpp
@@ -354,6 +354,16 @@ void ViewImplementation::set_listen_for_dom_mutations(bool listen_for_dom_mutati
     client().async_set_listen_for_dom_mutations(page_id(), listen_for_dom_mutations);
 }
 
+void ViewImplementation::get_dom_node_outer_html(Web::UniqueNodeID node_id)
+{
+    client().async_get_dom_node_outer_html(page_id(), node_id);
+}
+
+void ViewImplementation::set_dom_node_outer_html(Web::UniqueNodeID node_id, String const& html)
+{
+    client().async_set_dom_node_outer_html(page_id(), node_id, html);
+}
+
 void ViewImplementation::set_dom_node_text(Web::UniqueNodeID node_id, String const& text)
 {
     client().async_set_dom_node_text(page_id(), node_id, text);
@@ -394,11 +404,6 @@ void ViewImplementation::remove_dom_node(Web::UniqueNodeID node_id)
     client().async_remove_dom_node(page_id(), node_id);
 }
 
-void ViewImplementation::get_dom_node_html(Web::UniqueNodeID node_id)
-{
-    client().async_get_dom_node_html(page_id(), node_id);
-}
-
 void ViewImplementation::list_style_sheets()
 {
     client().async_list_style_sheets(page_id());
diff --git a/Libraries/LibWebView/ViewImplementation.h b/Libraries/LibWebView/ViewImplementation.h
index c1f8ed73592..eb6e322dafa 100644
--- a/Libraries/LibWebView/ViewImplementation.h
+++ b/Libraries/LibWebView/ViewImplementation.h
@@ -115,6 +115,8 @@ public:
     void clear_highlighted_dom_node();
 
     void set_listen_for_dom_mutations(bool);
+    void get_dom_node_outer_html(Web::UniqueNodeID node_id);
+    void set_dom_node_outer_html(Web::UniqueNodeID node_id, String const& html);
     void set_dom_node_text(Web::UniqueNodeID node_id, String const& text);
     void set_dom_node_tag(Web::UniqueNodeID node_id, String const& name);
     void add_dom_node_attributes(Web::UniqueNodeID node_id, ReadonlySpan<Attribute> attributes);
@@ -123,7 +125,6 @@ public:
     void create_child_text_node(Web::UniqueNodeID node_id);
     void clone_dom_node(Web::UniqueNodeID node_id);
     void remove_dom_node(Web::UniqueNodeID node_id);
-    void get_dom_node_html(Web::UniqueNodeID node_id);
 
     void list_style_sheets();
     void request_style_sheet_source(Web::CSS::StyleSheetIdentifier const&);
@@ -218,7 +219,7 @@ public:
     Function<void(Web::UniqueNodeID)> on_received_hovered_node_id;
     Function<void(Mutation)> on_dom_mutation_received;
     Function<void(Optional<Web::UniqueNodeID> const& node_id)> on_finshed_editing_dom_node;
-    Function<void(String const&)> on_received_dom_node_html;
+    Function<void(String)> on_received_dom_node_html;
     Function<void(JsonValue)> on_received_js_console_result;
     Function<void(i32 message_id)> on_console_message_available;
     Function<void(i32 start_index, Vector<String> const& message_types, Vector<String> const& messages)> on_received_styled_console_messages;
diff --git a/Libraries/LibWebView/WebContentClient.cpp b/Libraries/LibWebView/WebContentClient.cpp
index be244be42ee..146140b2f06 100644
--- a/Libraries/LibWebView/WebContentClient.cpp
+++ b/Libraries/LibWebView/WebContentClient.cpp
@@ -371,7 +371,7 @@ void WebContentClient::did_get_dom_node_html(u64 page_id, String html)
 {
     if (auto view = view_for_page_id(page_id); view.has_value()) {
         if (view->on_received_dom_node_html)
-            view->on_received_dom_node_html(html);
+            view->on_received_dom_node_html(move(html));
     }
 }
 
diff --git a/Services/WebContent/ConnectionFromClient.cpp b/Services/WebContent/ConnectionFromClient.cpp
index d68f468c879..a1ac9502f24 100644
--- a/Services/WebContent/ConnectionFromClient.cpp
+++ b/Services/WebContent/ConnectionFromClient.cpp
@@ -676,6 +676,49 @@ void ConnectionFromClient::set_listen_for_dom_mutations(u64 page_id, bool listen
     page->page().set_listen_for_dom_mutations(listen_for_dom_mutations);
 }
 
+void ConnectionFromClient::get_dom_node_outer_html(u64 page_id, Web::UniqueNodeID node_id)
+{
+    auto* dom_node = Web::DOM::Node::from_unique_id(node_id);
+    if (!dom_node)
+        return;
+
+    String html;
+
+    if (dom_node->is_element()) {
+        auto const& element = static_cast<Web::DOM::Element const&>(*dom_node);
+        html = element.outer_html().release_value_but_fixme_should_propagate_errors();
+    } else if (dom_node->is_text() || dom_node->is_comment()) {
+        auto const& character_data = static_cast<Web::DOM::CharacterData const&>(*dom_node);
+        html = character_data.data();
+    } else {
+        return;
+    }
+
+    async_did_get_dom_node_html(page_id, html);
+}
+
+void ConnectionFromClient::set_dom_node_outer_html(u64 page_id, Web::UniqueNodeID node_id, String html)
+{
+    auto* dom_node = Web::DOM::Node::from_unique_id(node_id);
+    if (!dom_node) {
+        async_did_finish_editing_dom_node(page_id, {});
+        return;
+    }
+
+    if (dom_node->is_element()) {
+        auto& element = static_cast<Web::DOM::Element&>(*dom_node);
+        element.set_outer_html(html).release_value_but_fixme_should_propagate_errors();
+    } else if (dom_node->is_text() || dom_node->is_comment()) {
+        auto& character_data = static_cast<Web::DOM::CharacterData&>(*dom_node);
+        character_data.set_data(html);
+    } else {
+        async_did_finish_editing_dom_node(page_id, {});
+        return;
+    }
+
+    async_did_finish_editing_dom_node(page_id, node_id);
+}
+
 void ConnectionFromClient::set_dom_node_text(u64 page_id, Web::UniqueNodeID node_id, String text)
 {
     auto* dom_node = Web::DOM::Node::from_unique_id(node_id);
@@ -826,27 +869,6 @@ void ConnectionFromClient::remove_dom_node(u64 page_id, Web::UniqueNodeID node_i
     async_did_finish_editing_dom_node(page_id, previous_dom_node->unique_id());
 }
 
-void ConnectionFromClient::get_dom_node_html(u64 page_id, Web::UniqueNodeID node_id)
-{
-    auto* dom_node = Web::DOM::Node::from_unique_id(node_id);
-    if (!dom_node)
-        return;
-
-    String html;
-
-    if (dom_node->is_element()) {
-        auto const& element = static_cast<Web::DOM::Element const&>(*dom_node);
-        html = element.outer_html().release_value_but_fixme_should_propagate_errors();
-    } else if (dom_node->is_text() || dom_node->is_comment()) {
-        auto const& character_data = static_cast<Web::DOM::CharacterData const&>(*dom_node);
-        html = character_data.data();
-    } else {
-        return;
-    }
-
-    async_did_get_dom_node_html(page_id, html);
-}
-
 void ConnectionFromClient::take_document_screenshot(u64 page_id)
 {
     auto page = this->page(page_id);
diff --git a/Services/WebContent/ConnectionFromClient.h b/Services/WebContent/ConnectionFromClient.h
index 8ba5b0eb351..65d7146ed92 100644
--- a/Services/WebContent/ConnectionFromClient.h
+++ b/Services/WebContent/ConnectionFromClient.h
@@ -84,6 +84,8 @@ private:
     virtual void request_style_sheet_source(u64 page_id, Web::CSS::StyleSheetIdentifier identifier) override;
 
     virtual void set_listen_for_dom_mutations(u64 page_id, bool) override;
+    virtual void get_dom_node_outer_html(u64 page_id, Web::UniqueNodeID node_id) override;
+    virtual void set_dom_node_outer_html(u64 page_id, Web::UniqueNodeID node_id, String html) override;
     virtual void set_dom_node_text(u64 page_id, Web::UniqueNodeID node_id, String text) override;
     virtual void set_dom_node_tag(u64 page_id, Web::UniqueNodeID node_id, String name) override;
     virtual void add_dom_node_attributes(u64 page_id, Web::UniqueNodeID node_id, Vector<WebView::Attribute> attributes) override;
@@ -92,7 +94,6 @@ private:
     virtual void create_child_text_node(u64 page_id, Web::UniqueNodeID node_id) override;
     virtual void clone_dom_node(u64 page_id, Web::UniqueNodeID node_id) override;
     virtual void remove_dom_node(u64 page_id, Web::UniqueNodeID node_id) override;
-    virtual void get_dom_node_html(u64 page_id, Web::UniqueNodeID node_id) override;
 
     virtual void set_content_filters(u64 page_id, Vector<String>) override;
     virtual void set_autoplay_allowed_on_all_websites(u64 page_id) override;
diff --git a/Services/WebContent/WebContentServer.ipc b/Services/WebContent/WebContentServer.ipc
index 18b0b036fcc..ddad965753a 100644
--- a/Services/WebContent/WebContentServer.ipc
+++ b/Services/WebContent/WebContentServer.ipc
@@ -57,6 +57,8 @@ endpoint WebContentServer
     request_style_sheet_source(u64 page_id, Web::CSS::StyleSheetIdentifier identifier) =|
 
     set_listen_for_dom_mutations(u64 page_id, bool listen_for_dom_mutations) =|
+    get_dom_node_outer_html(u64 page_id, Web::UniqueNodeID node_id) =|
+    set_dom_node_outer_html(u64 page_id, Web::UniqueNodeID node_id, String html) =|
     set_dom_node_text(u64 page_id, Web::UniqueNodeID node_id, String text) =|
     set_dom_node_tag(u64 page_id, Web::UniqueNodeID node_id, String name) =|
     add_dom_node_attributes(u64 page_id, Web::UniqueNodeID node_id, Vector<WebView::Attribute> attributes) =|
@@ -65,7 +67,6 @@ endpoint WebContentServer
     create_child_text_node(u64 page_id, Web::UniqueNodeID node_id) =|
     clone_dom_node(u64 page_id, Web::UniqueNodeID node_id) =|
     remove_dom_node(u64 page_id, Web::UniqueNodeID node_id) =|
-    get_dom_node_html(u64 page_id, Web::UniqueNodeID node_id) =|
 
     take_document_screenshot(u64 page_id) =|
     take_dom_node_screenshot(u64 page_id, Web::UniqueNodeID node_id) =|