diff --git a/Userland/Libraries/LibJS/AST.cpp b/Userland/Libraries/LibJS/AST.cpp
index 29e9a8327b8..b87272acf56 100644
--- a/Userland/Libraries/LibJS/AST.cpp
+++ b/Userland/Libraries/LibJS/AST.cpp
@@ -47,9 +47,7 @@
 #include <LibJS/Runtime/RegExpObject.h>
 #include <LibJS/Runtime/ScriptFunction.h>
 #include <LibJS/Runtime/Shape.h>
-#include <LibJS/Runtime/StringObject.h>
 #include <LibJS/Runtime/WithScope.h>
-#include <typeinfo>
 
 namespace JS {
 
diff --git a/Userland/Libraries/LibJS/Interpreter.cpp b/Userland/Libraries/LibJS/Interpreter.cpp
index 72e4a9587a8..69ec6e18b8c 100644
--- a/Userland/Libraries/LibJS/Interpreter.cpp
+++ b/Userland/Libraries/LibJS/Interpreter.cpp
@@ -24,20 +24,15 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include <AK/Badge.h>
 #include <AK/StringBuilder.h>
 #include <LibJS/AST.h>
 #include <LibJS/Interpreter.h>
-#include <LibJS/Runtime/Error.h>
 #include <LibJS/Runtime/GlobalObject.h>
 #include <LibJS/Runtime/LexicalEnvironment.h>
-#include <LibJS/Runtime/MarkedValueList.h>
-#include <LibJS/Runtime/NativeFunction.h>
 #include <LibJS/Runtime/Object.h>
 #include <LibJS/Runtime/Reference.h>
 #include <LibJS/Runtime/ScriptFunction.h>
 #include <LibJS/Runtime/Shape.h>
-#include <LibJS/Runtime/SymbolObject.h>
 #include <LibJS/Runtime/Value.h>
 
 namespace JS {
diff --git a/Userland/Libraries/LibJS/Lexer.cpp b/Userland/Libraries/LibJS/Lexer.cpp
index 10564d1c75e..cf9b787a768 100644
--- a/Userland/Libraries/LibJS/Lexer.cpp
+++ b/Userland/Libraries/LibJS/Lexer.cpp
@@ -28,7 +28,6 @@
 #include "Lexer.h"
 #include <AK/Debug.h>
 #include <AK/HashMap.h>
-#include <AK/StringBuilder.h>
 #include <ctype.h>
 #include <stdio.h>
 
diff --git a/Userland/Libraries/LibJS/Runtime/Array.cpp b/Userland/Libraries/LibJS/Runtime/Array.cpp
index 6e1f5f53000..2509d134223 100644
--- a/Userland/Libraries/LibJS/Runtime/Array.cpp
+++ b/Userland/Libraries/LibJS/Runtime/Array.cpp
@@ -26,7 +26,6 @@
 
 #include <AK/Function.h>
 #include <LibJS/Runtime/Array.h>
-#include <LibJS/Runtime/ArrayPrototype.h>
 #include <LibJS/Runtime/Error.h>
 #include <LibJS/Runtime/GlobalObject.h>
 
diff --git a/Userland/Libraries/LibJS/Runtime/BigIntObject.cpp b/Userland/Libraries/LibJS/Runtime/BigIntObject.cpp
index eea70af64ec..bb389125fb5 100644
--- a/Userland/Libraries/LibJS/Runtime/BigIntObject.cpp
+++ b/Userland/Libraries/LibJS/Runtime/BigIntObject.cpp
@@ -24,7 +24,6 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include <LibJS/Heap/Heap.h>
 #include <LibJS/Runtime/BigIntObject.h>
 #include <LibJS/Runtime/GlobalObject.h>
 
diff --git a/Userland/Libraries/LibJS/Runtime/Cell.cpp b/Userland/Libraries/LibJS/Runtime/Cell.cpp
index 22a9979a35a..57543adc6c7 100644
--- a/Userland/Libraries/LibJS/Runtime/Cell.cpp
+++ b/Userland/Libraries/LibJS/Runtime/Cell.cpp
@@ -27,8 +27,6 @@
 #include <LibJS/Heap/Heap.h>
 #include <LibJS/Heap/HeapBlock.h>
 #include <LibJS/Runtime/Cell.h>
-#include <LibJS/Runtime/Object.h>
-#include <LibJS/Runtime/PrimitiveString.h>
 #include <LibJS/Runtime/Value.h>
 
 namespace JS {
diff --git a/Userland/Libraries/LibJS/Runtime/ConsoleObject.cpp b/Userland/Libraries/LibJS/Runtime/ConsoleObject.cpp
index f87b29c0a15..6bf7aafde49 100644
--- a/Userland/Libraries/LibJS/Runtime/ConsoleObject.cpp
+++ b/Userland/Libraries/LibJS/Runtime/ConsoleObject.cpp
@@ -26,8 +26,6 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include <AK/FlyString.h>
-#include <AK/Function.h>
 #include <LibJS/Console.h>
 #include <LibJS/Runtime/ConsoleObject.h>
 #include <LibJS/Runtime/GlobalObject.h>
diff --git a/Userland/Libraries/LibJS/Runtime/FunctionConstructor.cpp b/Userland/Libraries/LibJS/Runtime/FunctionConstructor.cpp
index b8664907f26..01a97571592 100644
--- a/Userland/Libraries/LibJS/Runtime/FunctionConstructor.cpp
+++ b/Userland/Libraries/LibJS/Runtime/FunctionConstructor.cpp
@@ -31,7 +31,6 @@
 #include <LibJS/Runtime/Error.h>
 #include <LibJS/Runtime/FunctionConstructor.h>
 #include <LibJS/Runtime/GlobalObject.h>
-#include <LibJS/Runtime/ScriptFunction.h>
 
 namespace JS {
 
diff --git a/Userland/Libraries/LibJS/Runtime/MathObject.cpp b/Userland/Libraries/LibJS/Runtime/MathObject.cpp
index 579a40636c1..9aa7f0e3fa2 100644
--- a/Userland/Libraries/LibJS/Runtime/MathObject.cpp
+++ b/Userland/Libraries/LibJS/Runtime/MathObject.cpp
@@ -25,7 +25,6 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include <AK/FlyString.h>
 #include <AK/Function.h>
 #include <LibJS/Runtime/GlobalObject.h>
 #include <LibJS/Runtime/MathObject.h>
diff --git a/Userland/Libraries/LibJS/Runtime/NumberObject.cpp b/Userland/Libraries/LibJS/Runtime/NumberObject.cpp
index 1376be15710..4b38f5ba050 100644
--- a/Userland/Libraries/LibJS/Runtime/NumberObject.cpp
+++ b/Userland/Libraries/LibJS/Runtime/NumberObject.cpp
@@ -24,11 +24,8 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include <LibJS/Heap/Heap.h>
 #include <LibJS/Runtime/GlobalObject.h>
 #include <LibJS/Runtime/NumberObject.h>
-#include <LibJS/Runtime/NumberPrototype.h>
-#include <LibJS/Runtime/Value.h>
 
 namespace JS {
 
diff --git a/Userland/Libraries/LibJS/Runtime/ObjectConstructor.cpp b/Userland/Libraries/LibJS/Runtime/ObjectConstructor.cpp
index a5601d97536..4856b6ae212 100644
--- a/Userland/Libraries/LibJS/Runtime/ObjectConstructor.cpp
+++ b/Userland/Libraries/LibJS/Runtime/ObjectConstructor.cpp
@@ -25,7 +25,6 @@
  */
 
 #include <AK/Function.h>
-#include <LibJS/Heap/Heap.h>
 #include <LibJS/Runtime/Array.h>
 #include <LibJS/Runtime/Error.h>
 #include <LibJS/Runtime/GlobalObject.h>
diff --git a/Userland/Libraries/LibJS/Runtime/ObjectPrototype.cpp b/Userland/Libraries/LibJS/Runtime/ObjectPrototype.cpp
index 71f498e126e..12922713674 100644
--- a/Userland/Libraries/LibJS/Runtime/ObjectPrototype.cpp
+++ b/Userland/Libraries/LibJS/Runtime/ObjectPrototype.cpp
@@ -26,7 +26,6 @@
 
 #include <AK/Function.h>
 #include <AK/String.h>
-#include <LibJS/Heap/Heap.h>
 #include <LibJS/Runtime/BooleanObject.h>
 #include <LibJS/Runtime/Date.h>
 #include <LibJS/Runtime/GlobalObject.h>
diff --git a/Userland/Libraries/LibJS/Runtime/Reference.cpp b/Userland/Libraries/LibJS/Runtime/Reference.cpp
index 6b6b06f80fb..6b4fff4baff 100644
--- a/Userland/Libraries/LibJS/Runtime/Reference.cpp
+++ b/Userland/Libraries/LibJS/Runtime/Reference.cpp
@@ -24,10 +24,8 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include <AK/StringBuilder.h>
 #include <LibJS/Runtime/Error.h>
 #include <LibJS/Runtime/GlobalObject.h>
-#include <LibJS/Runtime/Object.h>
 #include <LibJS/Runtime/Reference.h>
 
 namespace JS {
diff --git a/Userland/Libraries/LibJS/Runtime/RegExpObject.cpp b/Userland/Libraries/LibJS/Runtime/RegExpObject.cpp
index cfe03644973..2c1d28af9a0 100644
--- a/Userland/Libraries/LibJS/Runtime/RegExpObject.cpp
+++ b/Userland/Libraries/LibJS/Runtime/RegExpObject.cpp
@@ -25,7 +25,6 @@
  */
 
 #include <AK/Function.h>
-#include <AK/StringBuilder.h>
 #include <LibJS/Heap/Heap.h>
 #include <LibJS/Runtime/GlobalObject.h>
 #include <LibJS/Runtime/PrimitiveString.h>
diff --git a/Userland/Libraries/LibJS/Runtime/StringObject.cpp b/Userland/Libraries/LibJS/Runtime/StringObject.cpp
index cfe1fd6fd88..fe1442d9148 100644
--- a/Userland/Libraries/LibJS/Runtime/StringObject.cpp
+++ b/Userland/Libraries/LibJS/Runtime/StringObject.cpp
@@ -24,12 +24,9 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include <LibJS/Heap/Heap.h>
 #include <LibJS/Runtime/GlobalObject.h>
 #include <LibJS/Runtime/PrimitiveString.h>
 #include <LibJS/Runtime/StringObject.h>
-#include <LibJS/Runtime/StringPrototype.h>
-#include <LibJS/Runtime/Value.h>
 
 namespace JS {
 
diff --git a/Userland/Libraries/LibJS/Runtime/SymbolConstructor.cpp b/Userland/Libraries/LibJS/Runtime/SymbolConstructor.cpp
index 0697ad98e67..e80c3efec87 100644
--- a/Userland/Libraries/LibJS/Runtime/SymbolConstructor.cpp
+++ b/Userland/Libraries/LibJS/Runtime/SymbolConstructor.cpp
@@ -27,7 +27,6 @@
 #include <LibJS/Runtime/Error.h>
 #include <LibJS/Runtime/GlobalObject.h>
 #include <LibJS/Runtime/SymbolConstructor.h>
-#include <LibJS/Runtime/SymbolObject.h>
 
 namespace JS {
 
diff --git a/Userland/Libraries/LibJS/Runtime/Uint8ClampedArray.cpp b/Userland/Libraries/LibJS/Runtime/Uint8ClampedArray.cpp
index c558f411190..ee7c8c14ff3 100644
--- a/Userland/Libraries/LibJS/Runtime/Uint8ClampedArray.cpp
+++ b/Userland/Libraries/LibJS/Runtime/Uint8ClampedArray.cpp
@@ -28,7 +28,6 @@
 #include <LibJS/Runtime/Error.h>
 #include <LibJS/Runtime/GlobalObject.h>
 #include <LibJS/Runtime/Uint8ClampedArray.h>
-#include <string.h>
 
 namespace JS {