diff --git a/Meta/Lagom/Tools/CodeGenerators/LibWeb/WrapperGenerator.cpp b/Meta/Lagom/Tools/CodeGenerators/LibWeb/WrapperGenerator.cpp
index 1d8fadf8b5..0177f3db8a 100644
--- a/Meta/Lagom/Tools/CodeGenerators/LibWeb/WrapperGenerator.cpp
+++ b/Meta/Lagom/Tools/CodeGenerators/LibWeb/WrapperGenerator.cpp
@@ -1226,7 +1226,7 @@ static void generate_wrap_statement(SourceGenerator& generator, String const& va
 )~~~");
     } else if (type.name == "ArrayFromVector") {
         // FIXME: Remove this fake type hack once it's no longer needed.
-        //        Basically once we have NodeList we can throw this out.
+        //        Basically once we have sequence<T> we can throw this out.
         scoped_generator.append(R"~~~(
     auto* new_array = JS::Array::create(global_object, 0);
     for (auto& element : @value@)
@@ -2736,6 +2736,7 @@ void generate_prototype_implementation(IDL::Interface const& interface)
 #include <LibWeb/Bindings/ImageDataWrapper.h>
 #include <LibWeb/Bindings/LocationObject.h>
 #include <LibWeb/Bindings/MessagePortWrapper.h>
+#include <LibWeb/Bindings/NodeListWrapper.h>
 #include <LibWeb/Bindings/NodeWrapperFactory.h>
 #include <LibWeb/Bindings/PerformanceTimingWrapper.h>
 #include <LibWeb/Bindings/RangeWrapper.h>
diff --git a/Userland/Libraries/LibWeb/Bindings/WindowObjectHelper.h b/Userland/Libraries/LibWeb/Bindings/WindowObjectHelper.h
index 742db85dba..6f13e48230 100644
--- a/Userland/Libraries/LibWeb/Bindings/WindowObjectHelper.h
+++ b/Userland/Libraries/LibWeb/Bindings/WindowObjectHelper.h
@@ -212,6 +212,8 @@
 #include <LibWeb/Bindings/MouseEventConstructor.h>
 #include <LibWeb/Bindings/MouseEventPrototype.h>
 #include <LibWeb/Bindings/NodeConstructor.h>
+#include <LibWeb/Bindings/NodeListConstructor.h>
+#include <LibWeb/Bindings/NodeListPrototype.h>
 #include <LibWeb/Bindings/NodePrototype.h>
 #include <LibWeb/Bindings/PageTransitionEventConstructor.h>
 #include <LibWeb/Bindings/PageTransitionEventPrototype.h>
@@ -373,6 +375,7 @@
     ADD_WINDOW_OBJECT_INTERFACE(MessageEvent)              \
     ADD_WINDOW_OBJECT_INTERFACE(MouseEvent)                \
     ADD_WINDOW_OBJECT_INTERFACE(Node)                      \
+    ADD_WINDOW_OBJECT_INTERFACE(NodeList)                  \
     ADD_WINDOW_OBJECT_INTERFACE(PageTransitionEvent)       \
     ADD_WINDOW_OBJECT_INTERFACE(Performance)               \
     ADD_WINDOW_OBJECT_INTERFACE(PerformanceTiming)         \
diff --git a/Userland/Libraries/LibWeb/CMakeLists.txt b/Userland/Libraries/LibWeb/CMakeLists.txt
index b2e36a510a..d4de8dfde7 100644
--- a/Userland/Libraries/LibWeb/CMakeLists.txt
+++ b/Userland/Libraries/LibWeb/CMakeLists.txt
@@ -66,12 +66,14 @@ set(SOURCES
     DOM/EventListener.cpp
     DOM/EventTarget.cpp
     DOM/HTMLCollection.cpp
+    DOM/LiveNodeList.cpp
     DOM/Node.cpp
     DOM/ParentNode.cpp
     DOM/Position.cpp
     DOM/ProcessingInstruction.cpp
     DOM/Range.cpp
     DOM/ShadowRoot.cpp
+    DOM/StaticNodeList.cpp
     DOM/Text.cpp
     DOM/Text.idl
     DOM/Timer.cpp
@@ -371,6 +373,7 @@ libweb_js_wrapper(DOM/HTMLCollection)
 libweb_js_wrapper(DOM/ProcessingInstruction)
 libweb_js_wrapper(DOM/ShadowRoot)
 libweb_js_wrapper(DOM/Node)
+libweb_js_wrapper(DOM/NodeList)
 libweb_js_wrapper(DOM/Range)
 libweb_js_wrapper(DOM/Text)
 libweb_js_wrapper(Geometry/DOMRect)
diff --git a/Userland/Libraries/LibWeb/DOM/LiveNodeList.cpp b/Userland/Libraries/LibWeb/DOM/LiveNodeList.cpp
new file mode 100644
index 0000000000..c1b0604607
--- /dev/null
+++ b/Userland/Libraries/LibWeb/DOM/LiveNodeList.cpp
@@ -0,0 +1,54 @@
+/*
+ * Copyright (c) 2021, Luke Wilde <lukew@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <LibWeb/DOM/LiveNodeList.h>
+#include <LibWeb/DOM/Node.h>
+
+namespace Web::DOM {
+
+LiveNodeList::LiveNodeList(Node& root, Function<bool(Node const&)> filter)
+    : m_root(root)
+    , m_filter(move(filter))
+{
+}
+
+NonnullRefPtrVector<Node> LiveNodeList::collection() const
+{
+    NonnullRefPtrVector<Node> nodes;
+    m_root->for_each_in_inclusive_subtree_of_type<Node>([&](auto& node) {
+        if (m_filter(node))
+            nodes.append(node);
+
+        return IterationDecision::Continue;
+    });
+    return nodes;
+}
+
+// https://dom.spec.whatwg.org/#dom-nodelist-length
+u32 LiveNodeList::length() const
+{
+    return collection().size();
+}
+
+// https://dom.spec.whatwg.org/#dom-nodelist-item
+Node const* LiveNodeList::item(u32 index) const
+{
+    // The item(index) method must return the indexth node in the collection. If there is no indexth node in the collection, then the method must return null.
+    auto nodes = collection();
+    if (index >= nodes.size())
+        return nullptr;
+    return &nodes[index];
+}
+
+// https://dom.spec.whatwg.org/#ref-for-dfn-supported-property-indices
+bool LiveNodeList::is_supported_property_index(u32 index) const
+{
+    // The object’s supported property indices are the numbers in the range zero to one less than the number of nodes represented by the collection.
+    // If there are no such elements, then there are no supported property indices.
+    return index < length();
+}
+
+}
diff --git a/Userland/Libraries/LibWeb/DOM/LiveNodeList.h b/Userland/Libraries/LibWeb/DOM/LiveNodeList.h
new file mode 100644
index 0000000000..1fe1c70a31
--- /dev/null
+++ b/Userland/Libraries/LibWeb/DOM/LiveNodeList.h
@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2021, Luke Wilde <lukew@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <AK/Function.h>
+#include <AK/NonnullRefPtrVector.h>
+#include <LibWeb/DOM/NodeList.h>
+
+namespace Web::DOM {
+
+// FIXME: Just like HTMLCollection, LiveNodeList currently does no caching.
+
+class LiveNodeList : public NodeList {
+public:
+    static NonnullRefPtr<NodeList> create(Node& root, Function<bool(Node const&)> filter)
+    {
+        return adopt_ref(*new LiveNodeList(root, move(filter)));
+    }
+
+    virtual u32 length() const override;
+    virtual Node const* item(u32 index) const override;
+
+    virtual bool is_supported_property_index(u32) const override;
+
+private:
+    LiveNodeList(Node& root, Function<bool(Node const&)> filter);
+
+    NonnullRefPtrVector<Node> collection() const;
+
+    NonnullRefPtr<Node> m_root;
+    Function<bool(Node const&)> m_filter;
+};
+
+}
diff --git a/Userland/Libraries/LibWeb/DOM/NodeList.h b/Userland/Libraries/LibWeb/DOM/NodeList.h
new file mode 100644
index 0000000000..839098865c
--- /dev/null
+++ b/Userland/Libraries/LibWeb/DOM/NodeList.h
@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2021, Luke Wilde <lukew@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <AK/Noncopyable.h>
+#include <AK/RefCounted.h>
+#include <LibWeb/Bindings/Wrappable.h>
+#include <LibWeb/Forward.h>
+
+namespace Web::DOM {
+
+// https://dom.spec.whatwg.org/#nodelist
+class NodeList
+    : public RefCounted<NodeList>
+    , public Bindings::Wrappable {
+    AK_MAKE_NONCOPYABLE(NodeList);
+    AK_MAKE_NONMOVABLE(NodeList);
+
+public:
+    using WrapperType = Bindings::NodeListWrapper;
+
+    virtual ~NodeList() override = default;
+
+    virtual u32 length() const = 0;
+    virtual Node const* item(u32 index) const = 0;
+
+    virtual bool is_supported_property_index(u32) const = 0;
+
+protected:
+    NodeList() = default;
+};
+
+}
diff --git a/Userland/Libraries/LibWeb/DOM/NodeList.idl b/Userland/Libraries/LibWeb/DOM/NodeList.idl
new file mode 100644
index 0000000000..b6b26d347b
--- /dev/null
+++ b/Userland/Libraries/LibWeb/DOM/NodeList.idl
@@ -0,0 +1,6 @@
+[Exposed=Window]
+interface NodeList {
+    getter Node? item(unsigned long index);
+    readonly attribute unsigned long length;
+    iterable<Node>;
+};
diff --git a/Userland/Libraries/LibWeb/DOM/StaticNodeList.cpp b/Userland/Libraries/LibWeb/DOM/StaticNodeList.cpp
new file mode 100644
index 0000000000..ec3707cdae
--- /dev/null
+++ b/Userland/Libraries/LibWeb/DOM/StaticNodeList.cpp
@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2021, Luke Wilde <lukew@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <LibWeb/DOM/StaticNodeList.h>
+
+namespace Web::DOM {
+
+StaticNodeList::StaticNodeList(NonnullRefPtrVector<Node>&& static_nodes)
+    : m_static_nodes(move(static_nodes))
+{
+}
+
+// https://dom.spec.whatwg.org/#dom-nodelist-length
+u32 StaticNodeList::length() const
+{
+    return m_static_nodes.size();
+}
+
+// https://dom.spec.whatwg.org/#dom-nodelist-item
+Node const* StaticNodeList::item(u32 index) const
+{
+    // The item(index) method must return the indexth node in the collection. If there is no indexth node in the collection, then the method must return null.
+    if (index >= m_static_nodes.size())
+        return nullptr;
+    return &m_static_nodes[index];
+}
+
+// https://dom.spec.whatwg.org/#ref-for-dfn-supported-property-indices
+bool StaticNodeList::is_supported_property_index(u32 index) const
+{
+    // The object’s supported property indices are the numbers in the range zero to one less than the number of nodes represented by the collection.
+    // If there are no such elements, then there are no supported property indices.
+    return index < m_static_nodes.size();
+}
+
+}
diff --git a/Userland/Libraries/LibWeb/DOM/StaticNodeList.h b/Userland/Libraries/LibWeb/DOM/StaticNodeList.h
new file mode 100644
index 0000000000..240898b93f
--- /dev/null
+++ b/Userland/Libraries/LibWeb/DOM/StaticNodeList.h
@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2021, Luke Wilde <lukew@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <AK/NonnullRefPtrVector.h>
+#include <LibWeb/DOM/Node.h>
+#include <LibWeb/DOM/NodeList.h>
+
+namespace Web::DOM {
+
+class StaticNodeList : public NodeList {
+public:
+    static NonnullRefPtr<NodeList> create(NonnullRefPtrVector<Node>&& static_nodes)
+    {
+        return adopt_ref(*new StaticNodeList(move(static_nodes)));
+    }
+
+    virtual ~StaticNodeList() override = default;
+
+    virtual u32 length() const override;
+    virtual Node const* item(u32 index) const override;
+
+    virtual bool is_supported_property_index(u32) const override;
+
+private:
+    StaticNodeList(NonnullRefPtrVector<Node>&& static_nodes);
+
+    NonnullRefPtrVector<Node> m_static_nodes;
+};
+
+}
diff --git a/Userland/Libraries/LibWeb/Forward.h b/Userland/Libraries/LibWeb/Forward.h
index da94990c07..17088b987c 100644
--- a/Userland/Libraries/LibWeb/Forward.h
+++ b/Userland/Libraries/LibWeb/Forward.h
@@ -82,11 +82,14 @@ class EventHandler;
 class EventListener;
 class EventTarget;
 class HTMLCollection;
+class LiveNodeList;
 class Node;
+class NodeList;
 class ParentNode;
 class Position;
 class ProcessingInstruction;
 class ShadowRoot;
+class StaticNodeList;
 class Text;
 class Timer;
 class Window;
@@ -374,6 +377,7 @@ class MessageChannelWrapper;
 class MessageEventWrapper;
 class MessagePortWrapper;
 class MouseEventWrapper;
+class NodeListWrapper;
 class NodeWrapper;
 class PageTransitionEventWrapper;
 class PerformanceTimingWrapper;