diff --git a/Userland/Libraries/LibWeb/Bindings/HTMLCollectionWrapperCustom.cpp b/Userland/Libraries/LibWeb/Bindings/HTMLCollectionWrapperCustom.cpp
index 5c51e06203..1d4f92551f 100644
--- a/Userland/Libraries/LibWeb/Bindings/HTMLCollectionWrapperCustom.cpp
+++ b/Userland/Libraries/LibWeb/Bindings/HTMLCollectionWrapperCustom.cpp
@@ -4,7 +4,6 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
-#include <AK/ScopeGuard.h>
 #include <LibWeb/Bindings/HTMLCollectionWrapper.h>
 #include <LibWeb/Bindings/NodeWrapper.h>
 #include <LibWeb/Bindings/NodeWrapperFactory.h>
diff --git a/Userland/Libraries/LibWeb/CSS/Length.cpp b/Userland/Libraries/LibWeb/CSS/Length.cpp
index 2b2c91d6d7..c1f18cd97d 100644
--- a/Userland/Libraries/LibWeb/CSS/Length.cpp
+++ b/Userland/Libraries/LibWeb/CSS/Length.cpp
@@ -6,7 +6,6 @@
  */
 
 #include <AK/NonnullOwnPtr.h>
-#include <AK/NonnullOwnPtrVector.h>
 #include <AK/Variant.h>
 #include <LibWeb/CSS/Length.h>
 #include <LibWeb/DOM/Document.h>
diff --git a/Userland/Libraries/LibWeb/CSS/Selector.cpp b/Userland/Libraries/LibWeb/CSS/Selector.cpp
index 1eb9ae4c69..af669b44b0 100644
--- a/Userland/Libraries/LibWeb/CSS/Selector.cpp
+++ b/Userland/Libraries/LibWeb/CSS/Selector.cpp
@@ -6,7 +6,6 @@
 
 #include "Selector.h"
 #include <AK/StringUtils.h>
-#include <LibWeb/CSS/Selector.h>
 #include <ctype.h>
 
 namespace Web::CSS {
diff --git a/Userland/Libraries/LibWeb/CSS/StyleProperties.cpp b/Userland/Libraries/LibWeb/CSS/StyleProperties.cpp
index 84ea18d5d7..8be326dd77 100644
--- a/Userland/Libraries/LibWeb/CSS/StyleProperties.cpp
+++ b/Userland/Libraries/LibWeb/CSS/StyleProperties.cpp
@@ -9,7 +9,6 @@
 #include <LibGfx/FontDatabase.h>
 #include <LibWeb/CSS/StyleProperties.h>
 #include <LibWeb/FontCache.h>
-#include <ctype.h>
 
 namespace Web::CSS {
 
diff --git a/Userland/Libraries/LibWeb/CodeGenerators/Generate_CSS_PropertyID_cpp.cpp b/Userland/Libraries/LibWeb/CodeGenerators/Generate_CSS_PropertyID_cpp.cpp
index 8ea1ff3f3d..ae65e8bea6 100644
--- a/Userland/Libraries/LibWeb/CodeGenerators/Generate_CSS_PropertyID_cpp.cpp
+++ b/Userland/Libraries/LibWeb/CodeGenerators/Generate_CSS_PropertyID_cpp.cpp
@@ -10,7 +10,6 @@
 #include <AK/StringBuilder.h>
 #include <LibCore/File.h>
 #include <ctype.h>
-#include <stdio.h>
 
 static String title_casify(const String& dashy_name)
 {
diff --git a/Userland/Libraries/LibWeb/CodeGenerators/Generate_CSS_PropertyID_h.cpp b/Userland/Libraries/LibWeb/CodeGenerators/Generate_CSS_PropertyID_h.cpp
index e154ca45a4..aa54e166fd 100644
--- a/Userland/Libraries/LibWeb/CodeGenerators/Generate_CSS_PropertyID_h.cpp
+++ b/Userland/Libraries/LibWeb/CodeGenerators/Generate_CSS_PropertyID_h.cpp
@@ -10,7 +10,6 @@
 #include <AK/StringBuilder.h>
 #include <LibCore/File.h>
 #include <ctype.h>
-#include <stdio.h>
 
 static String title_casify(const String& dashy_name)
 {
diff --git a/Userland/Libraries/LibWeb/CodeGenerators/Generate_CSS_ValueID_cpp.cpp b/Userland/Libraries/LibWeb/CodeGenerators/Generate_CSS_ValueID_cpp.cpp
index fbfe0b6c6c..15c81224df 100644
--- a/Userland/Libraries/LibWeb/CodeGenerators/Generate_CSS_ValueID_cpp.cpp
+++ b/Userland/Libraries/LibWeb/CodeGenerators/Generate_CSS_ValueID_cpp.cpp
@@ -10,7 +10,6 @@
 #include <AK/StringBuilder.h>
 #include <LibCore/File.h>
 #include <ctype.h>
-#include <stdio.h>
 
 static String title_casify(const String& dashy_name)
 {
diff --git a/Userland/Libraries/LibWeb/CodeGenerators/Generate_CSS_ValueID_h.cpp b/Userland/Libraries/LibWeb/CodeGenerators/Generate_CSS_ValueID_h.cpp
index 8c11b37055..3c2488728e 100644
--- a/Userland/Libraries/LibWeb/CodeGenerators/Generate_CSS_ValueID_h.cpp
+++ b/Userland/Libraries/LibWeb/CodeGenerators/Generate_CSS_ValueID_h.cpp
@@ -10,7 +10,6 @@
 #include <AK/StringBuilder.h>
 #include <LibCore/File.h>
 #include <ctype.h>
-#include <stdio.h>
 
 static String title_casify(const String& dashy_name)
 {
diff --git a/Userland/Libraries/LibWeb/DOM/Element.cpp b/Userland/Libraries/LibWeb/DOM/Element.cpp
index bc0506088d..a71d30bdb6 100644
--- a/Userland/Libraries/LibWeb/DOM/Element.cpp
+++ b/Userland/Libraries/LibWeb/DOM/Element.cpp
@@ -9,7 +9,6 @@
 #include <LibWeb/CSS/Parser/DeprecatedCSSParser.h>
 #include <LibWeb/CSS/PropertyID.h>
 #include <LibWeb/CSS/StyleInvalidator.h>
-#include <LibWeb/CSS/StyleResolver.h>
 #include <LibWeb/DOM/DOMException.h>
 #include <LibWeb/DOM/Document.h>
 #include <LibWeb/DOM/Element.h>
diff --git a/Userland/Libraries/LibWeb/DOM/Event.cpp b/Userland/Libraries/LibWeb/DOM/Event.cpp
index 73d0aaa305..c1704ec0b9 100644
--- a/Userland/Libraries/LibWeb/DOM/Event.cpp
+++ b/Userland/Libraries/LibWeb/DOM/Event.cpp
@@ -4,7 +4,6 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
-#include <AK/Assertions.h>
 #include <AK/TypeCasts.h>
 #include <LibWeb/DOM/Event.h>
 #include <LibWeb/DOM/Node.h>
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLBlinkElement.cpp b/Userland/Libraries/LibWeb/HTML/HTMLBlinkElement.cpp
index 826fbcf17e..53d02fe344 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLBlinkElement.cpp
+++ b/Userland/Libraries/LibWeb/HTML/HTMLBlinkElement.cpp
@@ -5,10 +5,8 @@
  */
 
 #include <LibCore/Timer.h>
-#include <LibWeb/CSS/StyleProperties.h>
 #include <LibWeb/CSS/StyleValue.h>
 #include <LibWeb/HTML/HTMLBlinkElement.h>
-#include <LibWeb/Layout/Node.h>
 
 namespace Web::HTML {
 
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLInputElement.cpp b/Userland/Libraries/LibWeb/HTML/HTMLInputElement.cpp
index 480f90f3a0..1ed1d8131c 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLInputElement.cpp
+++ b/Userland/Libraries/LibWeb/HTML/HTMLInputElement.cpp
@@ -4,7 +4,6 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
-#include <LibGfx/FontDatabase.h>
 #include <LibWeb/DOM/Document.h>
 #include <LibWeb/DOM/Event.h>
 #include <LibWeb/DOM/ShadowRoot.h>
diff --git a/Userland/Libraries/LibWeb/InProcessWebView.cpp b/Userland/Libraries/LibWeb/InProcessWebView.cpp
index 6fb5317280..e2539d5f22 100644
--- a/Userland/Libraries/LibWeb/InProcessWebView.cpp
+++ b/Userland/Libraries/LibWeb/InProcessWebView.cpp
@@ -5,10 +5,8 @@
  */
 
 #include <AK/URL.h>
-#include <LibCore/File.h>
 #include <LibCore/MimeData.h>
 #include <LibGUI/Application.h>
-#include <LibGUI/Clipboard.h>
 #include <LibGUI/InputBox.h>
 #include <LibGUI/MessageBox.h>
 #include <LibGUI/Painter.h>
@@ -19,7 +17,6 @@
 #include <LibWeb/HTML/Parser/HTMLDocumentParser.h>
 #include <LibWeb/InProcessWebView.h>
 #include <LibWeb/Layout/InitialContainingBlockBox.h>
-#include <LibWeb/Layout/Node.h>
 #include <LibWeb/Layout/TextNode.h>
 #include <LibWeb/Loader/ResourceLoader.h>
 #include <LibWeb/Page/BrowsingContext.h>
diff --git a/Userland/Libraries/LibWeb/Layout/BlockBox.cpp b/Userland/Libraries/LibWeb/Layout/BlockBox.cpp
index 5867331aaa..d295428615 100644
--- a/Userland/Libraries/LibWeb/Layout/BlockBox.cpp
+++ b/Userland/Libraries/LibWeb/Layout/BlockBox.cpp
@@ -5,7 +5,6 @@
  */
 
 #include <LibGfx/Painter.h>
-#include <LibWeb/CSS/StyleResolver.h>
 #include <LibWeb/Dump.h>
 #include <LibWeb/Layout/BlockBox.h>
 #include <LibWeb/Layout/InitialContainingBlockBox.h>
diff --git a/Userland/Libraries/LibWeb/Layout/Box.cpp b/Userland/Libraries/LibWeb/Layout/Box.cpp
index 1c3cf9365e..da4aa9e0f9 100644
--- a/Userland/Libraries/LibWeb/Layout/Box.cpp
+++ b/Userland/Libraries/LibWeb/Layout/Box.cpp
@@ -6,7 +6,6 @@
 
 #include <LibGfx/DisjointRectSet.h>
 #include <LibGfx/Filters/FastBoxBlurFilter.h>
-#include <LibGfx/Filters/SpatialGaussianBlurFilter.h>
 #include <LibGfx/Painter.h>
 #include <LibWeb/DOM/Document.h>
 #include <LibWeb/HTML/HTMLBodyElement.h>
diff --git a/Userland/Libraries/LibWeb/Layout/Node.cpp b/Userland/Libraries/LibWeb/Layout/Node.cpp
index b6069936ae..9807beb548 100644
--- a/Userland/Libraries/LibWeb/Layout/Node.cpp
+++ b/Userland/Libraries/LibWeb/Layout/Node.cpp
@@ -16,7 +16,6 @@
 #include <LibWeb/Layout/Node.h>
 #include <LibWeb/Layout/TextNode.h>
 #include <LibWeb/Page/BrowsingContext.h>
-#include <typeinfo>
 
 namespace Web::Layout {
 
diff --git a/Userland/Libraries/LibWeb/Layout/TextNode.cpp b/Userland/Libraries/LibWeb/Layout/TextNode.cpp
index 6b5e0bbdb4..48aaaa767c 100644
--- a/Userland/Libraries/LibWeb/Layout/TextNode.cpp
+++ b/Userland/Libraries/LibWeb/Layout/TextNode.cpp
@@ -5,7 +5,6 @@
  */
 
 #include <AK/CharacterTypes.h>
-#include <AK/ScopeGuard.h>
 #include <AK/StringBuilder.h>
 #include <LibGfx/Painter.h>
 #include <LibWeb/DOM/Document.h>
diff --git a/Userland/Libraries/LibWeb/LayoutTreeModel.cpp b/Userland/Libraries/LibWeb/LayoutTreeModel.cpp
index 85dc029617..164b6a0b43 100644
--- a/Userland/Libraries/LibWeb/LayoutTreeModel.cpp
+++ b/Userland/Libraries/LibWeb/LayoutTreeModel.cpp
@@ -8,7 +8,6 @@
 #include <AK/StringBuilder.h>
 #include <LibWeb/DOM/Document.h>
 #include <LibWeb/DOM/Element.h>
-#include <LibWeb/DOM/Text.h>
 #include <LibWeb/Layout/InitialContainingBlockBox.h>
 #include <LibWeb/Layout/TextNode.h>
 #include <ctype.h>
diff --git a/Userland/Libraries/LibWeb/Loader/CSSLoader.cpp b/Userland/Libraries/LibWeb/Loader/CSSLoader.cpp
index bfb9597e32..0ebbda6825 100644
--- a/Userland/Libraries/LibWeb/Loader/CSSLoader.cpp
+++ b/Userland/Libraries/LibWeb/Loader/CSSLoader.cpp
@@ -6,9 +6,7 @@
 
 #include <AK/Debug.h>
 #include <AK/URL.h>
-#include <LibWeb/CSS/CSSImportRule.h>
 #include <LibWeb/CSS/Parser/DeprecatedCSSParser.h>
-#include <LibWeb/CSS/StyleSheet.h>
 #include <LibWeb/DOM/Document.h>
 #include <LibWeb/DOM/Element.h>
 #include <LibWeb/Loader/CSSLoader.h>
diff --git a/Userland/Libraries/LibWeb/Loader/FrameLoader.cpp b/Userland/Libraries/LibWeb/Loader/FrameLoader.cpp
index 2a65d0f463..eedb7e99c7 100644
--- a/Userland/Libraries/LibWeb/Loader/FrameLoader.cpp
+++ b/Userland/Libraries/LibWeb/Loader/FrameLoader.cpp
@@ -17,7 +17,6 @@
 #include <LibWeb/HTML/Parser/HTMLDocumentParser.h>
 #include <LibWeb/Loader/FrameLoader.h>
 #include <LibWeb/Loader/ResourceLoader.h>
-#include <LibWeb/Namespace.h>
 #include <LibWeb/Page/BrowsingContext.h>
 #include <LibWeb/Page/Page.h>
 
diff --git a/Userland/Libraries/LibWeb/Loader/ImageResource.cpp b/Userland/Libraries/LibWeb/Loader/ImageResource.cpp
index 508bd62ba6..39f2ee5995 100644
--- a/Userland/Libraries/LibWeb/Loader/ImageResource.cpp
+++ b/Userland/Libraries/LibWeb/Loader/ImageResource.cpp
@@ -4,7 +4,6 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
-#include <AK/Function.h>
 #include <LibGfx/Bitmap.h>
 #include <LibImageDecoderClient/Client.h>
 #include <LibWeb/Loader/ImageResource.h>
diff --git a/Userland/Libraries/LibWeb/Painting/StackingContext.cpp b/Userland/Libraries/LibWeb/Painting/StackingContext.cpp
index 3db4556ac8..2559d40d32 100644
--- a/Userland/Libraries/LibWeb/Painting/StackingContext.cpp
+++ b/Userland/Libraries/LibWeb/Painting/StackingContext.cpp
@@ -7,7 +7,6 @@
 #include <AK/QuickSort.h>
 #include <AK/StringBuilder.h>
 #include <LibGfx/Painter.h>
-#include <LibWeb/DOM/Node.h>
 #include <LibWeb/Layout/Box.h>
 #include <LibWeb/Layout/InitialContainingBlockBox.h>
 #include <LibWeb/Painting/StackingContext.h>
diff --git a/Userland/Libraries/LibWeb/SVG/SVGSVGElement.cpp b/Userland/Libraries/LibWeb/SVG/SVGSVGElement.cpp
index effcf8edcb..011102400e 100644
--- a/Userland/Libraries/LibWeb/SVG/SVGSVGElement.cpp
+++ b/Userland/Libraries/LibWeb/SVG/SVGSVGElement.cpp
@@ -9,9 +9,7 @@
 #include <LibWeb/DOM/Document.h>
 #include <LibWeb/DOM/Event.h>
 #include <LibWeb/Layout/SVGSVGBox.h>
-#include <LibWeb/SVG/SVGPathElement.h>
 #include <LibWeb/SVG/SVGSVGElement.h>
-#include <ctype.h>
 
 namespace Web::SVG {
 
diff --git a/Userland/Libraries/LibWeb/WebAssembly/WebAssemblyInstanceConstructor.cpp b/Userland/Libraries/LibWeb/WebAssembly/WebAssemblyInstanceConstructor.cpp
index 8b2e990e68..94953c0342 100644
--- a/Userland/Libraries/LibWeb/WebAssembly/WebAssemblyInstanceConstructor.cpp
+++ b/Userland/Libraries/LibWeb/WebAssembly/WebAssemblyInstanceConstructor.cpp
@@ -4,7 +4,6 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
-#include <LibJS/Heap/Heap.h>
 #include <LibJS/Runtime/GlobalObject.h>
 #include <LibWeb/Bindings/WindowObject.h>
 #include <LibWeb/WebAssembly/WebAssemblyInstanceConstructor.h>
diff --git a/Userland/Libraries/LibWeb/WebAssembly/WebAssemblyMemoryConstructor.cpp b/Userland/Libraries/LibWeb/WebAssembly/WebAssemblyMemoryConstructor.cpp
index 111993a5de..338dbcc959 100644
--- a/Userland/Libraries/LibWeb/WebAssembly/WebAssemblyMemoryConstructor.cpp
+++ b/Userland/Libraries/LibWeb/WebAssembly/WebAssemblyMemoryConstructor.cpp
@@ -4,7 +4,6 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
-#include <LibJS/Heap/Heap.h>
 #include <LibJS/Runtime/GlobalObject.h>
 #include <LibWeb/Bindings/WindowObject.h>
 #include <LibWeb/WebAssembly/WebAssemblyMemoryConstructor.h>
diff --git a/Userland/Libraries/LibWeb/WebAssembly/WebAssemblyModuleConstructor.cpp b/Userland/Libraries/LibWeb/WebAssembly/WebAssemblyModuleConstructor.cpp
index b998fce270..ba1ac2ee17 100644
--- a/Userland/Libraries/LibWeb/WebAssembly/WebAssemblyModuleConstructor.cpp
+++ b/Userland/Libraries/LibWeb/WebAssembly/WebAssemblyModuleConstructor.cpp
@@ -4,7 +4,6 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
-#include <LibJS/Heap/Heap.h>
 #include <LibJS/Runtime/GlobalObject.h>
 #include <LibJS/Runtime/TypedArray.h>
 #include <LibWeb/Bindings/WindowObject.h>