diff --git a/Tests/LibWeb/Text/expected/UIEvents/KeyEvent-numpad-keys.txt b/Tests/LibWeb/Text/expected/UIEvents/KeyEvent-numpad-keys.txt
new file mode 100644
index 00000000000..a3eedbad69a
--- /dev/null
+++ b/Tests/LibWeb/Text/expected/UIEvents/KeyEvent-numpad-keys.txt
@@ -0,0 +1,20 @@
+key="0" code=Numpad0
+key="1" code=Numpad1
+key="2" code=Numpad2
+key="3" code=Numpad3
+key="4" code=Numpad4
+key="5" code=Numpad5
+key="6" code=Numpad6
+key="7" code=Numpad7
+key="8" code=Numpad8
+key="9" code=Numpad9
+key="+" code=NumpadAdd
+key="," code=NumpadComma
+key="." code=NumpadDecimal
+key="/" code=NumpadDivide
+key="*" code=NumpadMultiply
+key="-" code=NumpadSubtract
+key="=" code=NumpadEqual
+key="#" code=NumpadHash
+key="(" code=NumpadParenLeft
+key=")" code=NumpadParenRight
diff --git a/Tests/LibWeb/Text/input/UIEvents/KeyEvent-numpad-keys.html b/Tests/LibWeb/Text/input/UIEvents/KeyEvent-numpad-keys.html
new file mode 100644
index 00000000000..97041bc11c1
--- /dev/null
+++ b/Tests/LibWeb/Text/input/UIEvents/KeyEvent-numpad-keys.html
@@ -0,0 +1,38 @@
+<input id="input" />
+<script src="../include.js"></script>
+<script>
+    const NUMPAD_KEYS = [
+        "0",
+        "1",
+        "2",
+        "3",
+        "4",
+        "5",
+        "6",
+        "7",
+        "8",
+        "9",
+        "+",
+        ",",
+        ".",
+        "/",
+        "*",
+        "-",
+        "=",
+        "#",
+        "(",
+        ")",
+    ];
+
+    test(() => {
+        let input = document.getElementById("input");
+
+        input.addEventListener("keydown", e => {
+            println(`key="${e.key}" code=${e.code}`);
+        });
+
+        NUMPAD_KEYS.forEach(key => {
+            internals.sendText(input, key, internals.MOD_KEYPAD);
+        });
+    });
+</script>
diff --git a/Userland/Libraries/LibWeb/Internals/Internals.cpp b/Userland/Libraries/LibWeb/Internals/Internals.cpp
index 9fa96ae760e..a97cd04b7f2 100644
--- a/Userland/Libraries/LibWeb/Internals/Internals.cpp
+++ b/Userland/Libraries/LibWeb/Internals/Internals.cpp
@@ -74,21 +74,21 @@ JS::Object* Internals::hit_test(double x, double y)
     return nullptr;
 }
 
-void Internals::send_text(HTML::HTMLElement& target, String const& text)
+void Internals::send_text(HTML::HTMLElement& target, String const& text, WebIDL::UnsignedShort modifiers)
 {
     auto& page = internals_page();
     target.focus();
 
     for (auto code_point : text.code_points())
-        page.handle_keydown(UIEvents::code_point_to_key_code(code_point), 0, code_point);
+        page.handle_keydown(UIEvents::code_point_to_key_code(code_point), modifiers, code_point);
 }
 
-void Internals::send_key(HTML::HTMLElement& target, String const& key_name)
+void Internals::send_key(HTML::HTMLElement& target, String const& key_name, WebIDL::UnsignedShort modifiers)
 {
     auto key_code = UIEvents::key_code_from_string(key_name);
     target.focus();
 
-    internals_page().handle_keydown(key_code, 0, 0);
+    internals_page().handle_keydown(key_code, modifiers, 0);
 }
 
 void Internals::commit_text()
diff --git a/Userland/Libraries/LibWeb/Internals/Internals.h b/Userland/Libraries/LibWeb/Internals/Internals.h
index 7674273eac3..2623a5b3759 100644
--- a/Userland/Libraries/LibWeb/Internals/Internals.h
+++ b/Userland/Libraries/LibWeb/Internals/Internals.h
@@ -9,6 +9,7 @@
 #include <LibWeb/Bindings/PlatformObject.h>
 #include <LibWeb/Internals/InternalAnimationTimeline.h>
 #include <LibWeb/UIEvents/MouseButton.h>
+#include <LibWeb/WebIDL/Types.h>
 
 namespace Web::Internals {
 
@@ -24,8 +25,8 @@ public:
     void gc();
     JS::Object* hit_test(double x, double y);
 
-    void send_text(HTML::HTMLElement&, String const&);
-    void send_key(HTML::HTMLElement&, String const&);
+    void send_text(HTML::HTMLElement&, String const&, WebIDL::UnsignedShort modifiers);
+    void send_key(HTML::HTMLElement&, String const&, WebIDL::UnsignedShort modifiers);
     void commit_text();
 
     void click(double x, double y);
diff --git a/Userland/Libraries/LibWeb/Internals/Internals.idl b/Userland/Libraries/LibWeb/Internals/Internals.idl
index 66c4d51d502..665b55de9a8 100644
--- a/Userland/Libraries/LibWeb/Internals/Internals.idl
+++ b/Userland/Libraries/LibWeb/Internals/Internals.idl
@@ -9,8 +9,15 @@ interface Internals {
     undefined gc();
     object hitTest(double x, double y);
 
-    undefined sendText(HTMLElement target, DOMString text);
-    undefined sendKey(HTMLElement target, DOMString keyName);
+    const unsigned short MOD_NONE = 0;
+    const unsigned short MOD_ALT = 1;
+    const unsigned short MOD_CTRL = 2;
+    const unsigned short MOD_SHIFT = 4;
+    const unsigned short MOD_SUPER = 8;
+    const unsigned short MOD_KEYPAD = 16;
+
+    undefined sendText(HTMLElement target, DOMString text, optional unsigned short modifiers = 0);
+    undefined sendKey(HTMLElement target, DOMString keyName, optional unsigned short modifiers = 0);
     undefined commitText();
 
     undefined click(double x, double y);
diff --git a/Userland/Libraries/LibWeb/UIEvents/KeyboardEvent.cpp b/Userland/Libraries/LibWeb/UIEvents/KeyboardEvent.cpp
index 98e49be8499..0eb34e53920 100644
--- a/Userland/Libraries/LibWeb/UIEvents/KeyboardEvent.cpp
+++ b/Userland/Libraries/LibWeb/UIEvents/KeyboardEvent.cpp
@@ -326,6 +326,8 @@ static ErrorOr<String> get_event_code(KeyCode platform_key, unsigned modifiers)
             return "Numpad9"_string;
         case KeyCode::Key_Plus:
             return "NumpadAdd"_string;
+        case KeyCode::Key_Comma:
+            return "NumpadComma"_string;
         case KeyCode::Key_Period:
         case KeyCode::Key_Delete:
             return "NumpadDecimal"_string;
@@ -334,9 +336,17 @@ static ErrorOr<String> get_event_code(KeyCode platform_key, unsigned modifiers)
         case KeyCode::Key_Return:
             return "NumpadEnter"_string;
         case KeyCode::Key_Asterisk:
-            return "NumpadAsterisk"_string;
+            return "NumpadMultiply"_string;
         case KeyCode::Key_Minus:
             return "NumpadSubtract"_string;
+        case KeyCode::Key_Equal:
+            return "NumpadEqual"_string;
+        case KeyCode::Key_Hashtag:
+            return "NumpadHash"_string;
+        case KeyCode::Key_LeftParen:
+            return "NumpadParenLeft"_string;
+        case KeyCode::Key_RightParen:
+            return "NumpadParenRight"_string;
         default:
             break;
         }