diff --git a/Meta/Lagom/CMakeLists.txt b/Meta/Lagom/CMakeLists.txt
index b858ac62db..09559b85f9 100644
--- a/Meta/Lagom/CMakeLists.txt
+++ b/Meta/Lagom/CMakeLists.txt
@@ -291,6 +291,13 @@ lagom_lib(TimeZone timezone
 )
 target_compile_definitions(LibTimeZone PRIVATE ENABLE_TIME_ZONE_DATA=$<BOOL:${ENABLE_TIME_ZONE_DATABASE_DOWNLOAD}>)
 
+# LibIDL
+# This is used by the WrapperGenerator so needs to always be built.
+file(GLOB LIBIDL_SOURCES CONFIGURE_DEPENDS "../../Userland/Libraries/LibIDL/*.cpp")
+lagom_lib(IDL idl
+    SOURCES ${LIBIDL_SOURCES}
+)
+
 # Manually install AK headers
 install(
     DIRECTORY "${SERENITY_PROJECT_ROOT}/AK"
@@ -548,7 +555,7 @@ if (BUILD_LAGOM)
 
         lagom_lib(Web web
             SOURCES ${LIBWEB_SOURCES} ${LIBWEB_SUBDIR_SOURCES} ${LIBWEB_SUBSUBDIR_SOURCES} ${LIBWEB_SUBSUBSUBDIR_SOURCES} ${LIBWEB_GENERATED_SOURCES}
-            LIBS LibMarkdown LibGemini LibGfx LibGL LibJS LibTextCodec LibWasm LibXML
+            LIBS LibMarkdown LibGemini LibGfx LibGL LibIDL LibJS LibTextCodec LibWasm LibXML
         )
         generate_js_wrappers(LibWeb)
     endif()
diff --git a/Meta/Lagom/Tools/CodeGenerators/LibWeb/WrapperGenerator/CMakeLists.txt b/Meta/Lagom/Tools/CodeGenerators/LibWeb/WrapperGenerator/CMakeLists.txt
index 5c97766e2d..2f06043b2f 100644
--- a/Meta/Lagom/Tools/CodeGenerators/LibWeb/WrapperGenerator/CMakeLists.txt
+++ b/Meta/Lagom/Tools/CodeGenerators/LibWeb/WrapperGenerator/CMakeLists.txt
@@ -1,8 +1,7 @@
-set(SOURCES "")
-
-lagom_tool(WrapperGenerator SOURCES
+set(SOURCES
     IDLGenerators.cpp
-    IDLParser.cpp
-    main.cpp)
+    main.cpp
+)
 
+lagom_tool(WrapperGenerator LIBS LibIDL)
 target_compile_options(WrapperGenerator PUBLIC -g)
diff --git a/Meta/Lagom/Tools/CodeGenerators/LibWeb/WrapperGenerator/IDLGenerators.cpp b/Meta/Lagom/Tools/CodeGenerators/LibWeb/WrapperGenerator/IDLGenerators.cpp
index 410c27c34d..5e5def3832 100644
--- a/Meta/Lagom/Tools/CodeGenerators/LibWeb/WrapperGenerator/IDLGenerators.cpp
+++ b/Meta/Lagom/Tools/CodeGenerators/LibWeb/WrapperGenerator/IDLGenerators.cpp
@@ -7,10 +7,10 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
-#include "IDLTypes.h"
 #include <AK/LexicalPath.h>
 #include <AK/Queue.h>
 #include <AK/QuickSort.h>
+#include <LibIDL/Types.h>
 
 Vector<StringView> s_header_search_paths;
 
diff --git a/Meta/Lagom/Tools/CodeGenerators/LibWeb/WrapperGenerator/main.cpp b/Meta/Lagom/Tools/CodeGenerators/LibWeb/WrapperGenerator/main.cpp
index d97574a12a..08d54280c0 100644
--- a/Meta/Lagom/Tools/CodeGenerators/LibWeb/WrapperGenerator/main.cpp
+++ b/Meta/Lagom/Tools/CodeGenerators/LibWeb/WrapperGenerator/main.cpp
@@ -7,12 +7,12 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
-#include "IDLParser.h"
-#include "IDLTypes.h"
 #include <AK/Debug.h>
 #include <AK/LexicalPath.h>
 #include <LibCore/ArgsParser.h>
 #include <LibCore/File.h>
+#include <LibIDL/IDLParser.h>
+#include <LibIDL/Types.h>
 
 extern Vector<StringView> s_header_search_paths;
 
diff --git a/Userland/Libraries/CMakeLists.txt b/Userland/Libraries/CMakeLists.txt
index cc6f311315..dde02378b1 100644
--- a/Userland/Libraries/CMakeLists.txt
+++ b/Userland/Libraries/CMakeLists.txt
@@ -26,6 +26,7 @@ add_subdirectory(LibGL)
 add_subdirectory(LibGPU)
 add_subdirectory(LibGUI)
 add_subdirectory(LibHTTP)
+add_subdirectory(LibIDL)
 add_subdirectory(LibIMAP)
 add_subdirectory(LibImageDecoderClient)
 add_subdirectory(LibIPC)
diff --git a/Userland/Libraries/LibIDL/CMakeLists.txt b/Userland/Libraries/LibIDL/CMakeLists.txt
new file mode 100644
index 0000000000..6c36da7885
--- /dev/null
+++ b/Userland/Libraries/LibIDL/CMakeLists.txt
@@ -0,0 +1,6 @@
+set(SOURCES
+    IDLParser.cpp
+)
+
+serenity_lib(LibIDL idl)
+target_link_libraries(LibIDL LibCore)
diff --git a/Meta/Lagom/Tools/CodeGenerators/LibWeb/WrapperGenerator/IDLParser.cpp b/Userland/Libraries/LibIDL/IDLParser.cpp
similarity index 99%
rename from Meta/Lagom/Tools/CodeGenerators/LibWeb/WrapperGenerator/IDLParser.cpp
rename to Userland/Libraries/LibIDL/IDLParser.cpp
index d8cad15a66..7b4d4ba919 100644
--- a/Meta/Lagom/Tools/CodeGenerators/LibWeb/WrapperGenerator/IDLParser.cpp
+++ b/Userland/Libraries/LibIDL/IDLParser.cpp
@@ -805,7 +805,7 @@ void Parser::parse_non_interface_entities(bool allow_interface, Interface& inter
     consume_whitespace();
 }
 
-void resolve_typedef(Interface& interface, NonnullRefPtr<Type>& type, HashMap<String, String>* extended_attributes = {})
+static void resolve_typedef(Interface& interface, NonnullRefPtr<Type>& type, HashMap<String, String>* extended_attributes = {})
 {
     if (is<ParameterizedType>(*type)) {
         auto parameterized_type = static_ptr_cast<ParameterizedType>(type);
@@ -826,7 +826,7 @@ void resolve_typedef(Interface& interface, NonnullRefPtr<Type>& type, HashMap<St
     for (auto& attribute : it->value.extended_attributes)
         extended_attributes->set(attribute.key, attribute.value);
 }
-void resolve_parameters_typedefs(Interface& interface, Vector<Parameter>& parameters)
+static void resolve_parameters_typedefs(Interface& interface, Vector<Parameter>& parameters)
 {
     for (auto& parameter : parameters)
         resolve_typedef(interface, parameter.type, &parameter.extended_attributes);
diff --git a/Meta/Lagom/Tools/CodeGenerators/LibWeb/WrapperGenerator/IDLParser.h b/Userland/Libraries/LibIDL/IDLParser.h
similarity index 98%
rename from Meta/Lagom/Tools/CodeGenerators/LibWeb/WrapperGenerator/IDLParser.h
rename to Userland/Libraries/LibIDL/IDLParser.h
index a735537f82..9cf488513b 100644
--- a/Meta/Lagom/Tools/CodeGenerators/LibWeb/WrapperGenerator/IDLParser.h
+++ b/Userland/Libraries/LibIDL/IDLParser.h
@@ -9,9 +9,9 @@
 
 #pragma once
 
-#include "IDLTypes.h"
 #include <AK/CharacterTypes.h>
 #include <AK/GenericLexer.h>
+#include <LibIDL/Types.h>
 
 namespace IDL {
 
diff --git a/Meta/Lagom/Tools/CodeGenerators/LibWeb/WrapperGenerator/IDLTypes.h b/Userland/Libraries/LibIDL/Types.h
similarity index 100%
rename from Meta/Lagom/Tools/CodeGenerators/LibWeb/WrapperGenerator/IDLTypes.h
rename to Userland/Libraries/LibIDL/Types.h