diff --git a/Applications/Browser/BrowserConsoleClient.cpp b/Applications/Browser/BrowserConsoleClient.cpp
index 4edaef346c..d7b54c06ce 100644
--- a/Applications/Browser/BrowserConsoleClient.cpp
+++ b/Applications/Browser/BrowserConsoleClient.cpp
@@ -33,9 +33,9 @@
 #include <LibJS/Interpreter.h>
 #include <LibWeb/DOM/DocumentType.h>
 #include <LibWeb/DOM/ElementFactory.h>
-#include <LibWeb/HTML/HTMLBodyElement.h>
 #include <LibWeb/DOM/Text.h>
 #include <LibWeb/DOMTreeModel.h>
+#include <LibWeb/HTML/HTMLBodyElement.h>
 
 namespace Browser {
 
diff --git a/Applications/Browser/ConsoleWidget.cpp b/Applications/Browser/ConsoleWidget.cpp
index fb1d37989d..e19a68ea38 100644
--- a/Applications/Browser/ConsoleWidget.cpp
+++ b/Applications/Browser/ConsoleWidget.cpp
@@ -36,9 +36,9 @@
 #include <LibJS/Runtime/Error.h>
 #include <LibWeb/DOM/DocumentType.h>
 #include <LibWeb/DOM/ElementFactory.h>
-#include <LibWeb/HTML/HTMLBodyElement.h>
 #include <LibWeb/DOM/Text.h>
 #include <LibWeb/DOMTreeModel.h>
+#include <LibWeb/HTML/HTMLBodyElement.h>
 
 namespace Browser {
 
@@ -94,7 +94,7 @@ ConsoleWidget::ConsoleWidget()
                 output_html.append(String::format("<pre>%s</pre>", escape_html_entities(hint).characters()));
             m_interpreter->throw_exception<JS::SyntaxError>(error.to_string());
         } else {
-            m_interpreter->run(m_interpreter->global_object(),*program);
+            m_interpreter->run(m_interpreter->global_object(), *program);
         }
 
         if (m_interpreter->exception()) {
diff --git a/Applications/Browser/DownloadWidget.cpp b/Applications/Browser/DownloadWidget.cpp
index 76d051bcb6..4323c65065 100644
--- a/Applications/Browser/DownloadWidget.cpp
+++ b/Applications/Browser/DownloadWidget.cpp
@@ -78,7 +78,6 @@ DownloadWidget::DownloadWidget(const URL& url)
     browser_image.load_from_file("/res/graphics/download-animation.gif");
     animation_layout.add_spacer();
 
-
     auto& source_label = add<GUI::Label>(String::format("From: %s", url.to_string().characters()));
     source_label.set_text_alignment(Gfx::TextAlignment::CenterLeft);
     source_label.set_size_policy(GUI::SizePolicy::Fill, GUI::SizePolicy::Fixed);
diff --git a/Applications/DisplaySettings/DisplaySettings.cpp b/Applications/DisplaySettings/DisplaySettings.cpp
index 0dd3c8248a..1e7b88d9b0 100644
--- a/Applications/DisplaySettings/DisplaySettings.cpp
+++ b/Applications/DisplaySettings/DisplaySettings.cpp
@@ -25,7 +25,6 @@
  */
 
 #include "DisplaySettings.h"
-#include <LibGUI/ItemListModel.h>
 #include <AK/StringBuilder.h>
 #include <LibCore/ConfigFile.h>
 #include <LibCore/DirIterator.h>
@@ -35,6 +34,7 @@
 #include <LibGUI/ComboBox.h>
 #include <LibGUI/Desktop.h>
 #include <LibGUI/FilePicker.h>
+#include <LibGUI/ItemListModel.h>
 #include <LibGUI/Label.h>
 #include <LibGUI/MessageBox.h>
 #include <LibGUI/WindowServerConnection.h>
diff --git a/Applications/Help/ManualNode.h b/Applications/Help/ManualNode.h
index 453e7c6413..b5901f9787 100644
--- a/Applications/Help/ManualNode.h
+++ b/Applications/Help/ManualNode.h
@@ -31,7 +31,7 @@
 
 class ManualNode {
 public:
-    virtual ~ManualNode() {}
+    virtual ~ManualNode() { }
 
     virtual NonnullOwnPtrVector<ManualNode>& children() const = 0;
     virtual const ManualNode* parent() const = 0;
diff --git a/Applications/Help/ManualPageNode.h b/Applications/Help/ManualPageNode.h
index 7fdedd405d..6de744e0e4 100644
--- a/Applications/Help/ManualPageNode.h
+++ b/Applications/Help/ManualPageNode.h
@@ -32,7 +32,7 @@ class ManualSectionNode;
 
 class ManualPageNode : public ManualNode {
 public:
-    virtual ~ManualPageNode() override {}
+    virtual ~ManualPageNode() override { }
 
     ManualPageNode(const ManualSectionNode& section, const StringView& page)
         : m_section(section)
diff --git a/Applications/Help/ManualSectionNode.h b/Applications/Help/ManualSectionNode.h
index cbfb2bd9b0..b0114201c3 100644
--- a/Applications/Help/ManualSectionNode.h
+++ b/Applications/Help/ManualSectionNode.h
@@ -30,7 +30,7 @@
 
 class ManualSectionNode : public ManualNode {
 public:
-    virtual ~ManualSectionNode() override {}
+    virtual ~ManualSectionNode() override { }
 
     ManualSectionNode(String section, String name)
         : m_section(section)
diff --git a/Applications/Help/main.cpp b/Applications/Help/main.cpp
index d48ce1bf55..ea06761b91 100644
--- a/Applications/Help/main.cpp
+++ b/Applications/Help/main.cpp
@@ -47,8 +47,8 @@
 #include <LibGUI/TreeView.h>
 #include <LibGUI/Window.h>
 #include <LibMarkdown/Document.h>
-#include <LibWeb/Layout/LayoutNode.h>
 #include <LibWeb/InProcessWebView.h>
+#include <LibWeb/Layout/LayoutNode.h>
 #include <libgen.h>
 #include <stdio.h>
 #include <string.h>
diff --git a/Applications/KeyboardMapper/KeyPositions.h b/Applications/KeyboardMapper/KeyPositions.h
index 9ec3dd35e6..3cd9dbaaf7 100644
--- a/Applications/KeyboardMapper/KeyPositions.h
+++ b/Applications/KeyboardMapper/KeyPositions.h
@@ -42,6 +42,7 @@ struct KeyPosition {
 #define KEY_COUNT 63
 
 struct KeyPosition keys[KEY_COUNT] = {
+    // clang-format off
     [ 0] = {     0,   0,  0,   0,   0, false,  0, ""},
 
     [ 1] = {  0x29,   0,  0,  50,  50,  true, 41, "`"},
@@ -59,7 +60,6 @@ struct KeyPosition keys[KEY_COUNT] = {
     [13] = {  0x0D, 612,  0,  50,  50,  true, 13, "="},
     [14] = {  0x0E, 663,  0, 100,  50, false,  0, "back space"},
 
-
     [15] = {  0x0F,   0,  52,  76,  50, false,  0, "tab"},
     [16] = {  0x10,  77,  52,  50,  50,  true, 16, "q"},
     [17] = {  0x11, 128,  52,  50,  50,  true, 17, "w"},
@@ -75,7 +75,6 @@ struct KeyPosition keys[KEY_COUNT] = {
     [27] = {  0x1B, 638,  52,  50,  50,  true, 27, "]"},
     [28] = {  0x1C, 689,  52,  74,  50, false,  0, "enter"},
 
-
     [29] = {  0x3A,   0, 104, 101,  50, false,  0, "caps lock"},
     [30] = {  0x1E, 103, 104,  50,  50,  true, 30, "a"},
     [31] = {  0x1F, 154, 104,  50,  50,  true, 31, "s"},
@@ -90,8 +89,6 @@ struct KeyPosition keys[KEY_COUNT] = {
     [40] = {  0x28, 614, 104,  50,  50,  true, 40, "\""},
     [41] = {  0x2B, 665, 104,  50,  50,  true, 43, "\\"},
 
-
-
     [42] = {  0x2A,   0, 156,  76,  50, false,  0, "left shift"},
     [43] = {  0x56,  77, 156,  50,  50,  true, 86, "\\"},
     [44] = {  0x2C, 128, 156,  50,  50,  true, 44, "z"},
@@ -114,4 +111,5 @@ struct KeyPosition keys[KEY_COUNT] = {
     [60] = {0xE05C, 587, 208,  50,  50, false,  0, "right\nsuper"},
     [61] = {0xE05D, 638, 208,  50,  50, false,  0, "menu"},
     [62] = {0xE01D, 689, 208,  74,  50, false,  0, "right ctrl"}
+    // clang-format on
 };
diff --git a/Applications/KeyboardSettings/CharacterMapFileListModel.h b/Applications/KeyboardSettings/CharacterMapFileListModel.h
index 2091d46674..4fcd1d8123 100644
--- a/Applications/KeyboardSettings/CharacterMapFileListModel.h
+++ b/Applications/KeyboardSettings/CharacterMapFileListModel.h
@@ -36,7 +36,7 @@ public:
         return adopt(*new CharacterMapFileListModel(file_names));
     }
 
-    virtual ~CharacterMapFileListModel() override {}
+    virtual ~CharacterMapFileListModel() override { }
 
     virtual int row_count(const GUI::ModelIndex&) const override
     {
diff --git a/Applications/KeyboardSettings/main.cpp b/Applications/KeyboardSettings/main.cpp
index dd0eb5ca02..cb0bb59fd8 100644
--- a/Applications/KeyboardSettings/main.cpp
+++ b/Applications/KeyboardSettings/main.cpp
@@ -25,8 +25,8 @@
  */
 
 #include "CharacterMapFileListModel.h"
-#include <AK/QuickSort.h>
 #include <AK/JsonObject.h>
+#include <AK/QuickSort.h>
 #include <LibCore/ArgsParser.h>
 #include <LibCore/DirIterator.h>
 #include <LibCore/File.h>
@@ -59,12 +59,12 @@ int main(int argc, char** argv)
         return 1;
     }
 
-    if (unveil("/res", "r") < 0 ) {
+    if (unveil("/res", "r") < 0) {
         perror("unveil");
         return 1;
     }
 
-    if (unveil("/bin/keymap", "x") < 0 ) {
+    if (unveil("/bin/keymap", "x") < 0) {
         perror("unveil");
         return 1;
     }
diff --git a/Applications/PixelPaint/CreateNewLayerDialog.h b/Applications/PixelPaint/CreateNewLayerDialog.h
index 2f9334a7c1..bb07ff9943 100644
--- a/Applications/PixelPaint/CreateNewLayerDialog.h
+++ b/Applications/PixelPaint/CreateNewLayerDialog.h
@@ -32,6 +32,7 @@ namespace PixelPaint {
 
 class CreateNewLayerDialog final : public GUI::Dialog {
     C_OBJECT(CreateNewLayerDialog);
+
 public:
     const Gfx::IntSize& layer_size() const { return m_layer_size; }
     const String& layer_name() const { return m_layer_name; }
diff --git a/Applications/PixelPaint/EllipseTool.h b/Applications/PixelPaint/EllipseTool.h
index 8462f38d6f..fb4a82b74a 100644
--- a/Applications/PixelPaint/EllipseTool.h
+++ b/Applications/PixelPaint/EllipseTool.h
@@ -27,8 +27,8 @@
 #pragma once
 
 #include "Tool.h"
-#include <LibGfx/Point.h>
 #include <LibGUI/ActionGroup.h>
+#include <LibGfx/Point.h>
 
 namespace PixelPaint {
 
diff --git a/Applications/PixelPaint/EraseTool.h b/Applications/PixelPaint/EraseTool.h
index 70968452dd..772479fb3f 100644
--- a/Applications/PixelPaint/EraseTool.h
+++ b/Applications/PixelPaint/EraseTool.h
@@ -28,8 +28,8 @@
 
 #include "Tool.h"
 #include <LibGUI/ActionGroup.h>
-#include <LibGfx/Point.h>
 #include <LibGfx/Forward.h>
+#include <LibGfx/Point.h>
 
 namespace PixelPaint {
 
diff --git a/Applications/PixelPaint/Image.h b/Applications/PixelPaint/Image.h
index 0ab8fac301..e723c646a1 100644
--- a/Applications/PixelPaint/Image.h
+++ b/Applications/PixelPaint/Image.h
@@ -45,7 +45,7 @@ public:
     virtual void image_did_add_layer(size_t) { }
     virtual void image_did_remove_layer(size_t) { }
     virtual void image_did_modify_layer(size_t) { }
-    virtual void image_did_modify_layer_stack() {}
+    virtual void image_did_modify_layer_stack() { }
     virtual void image_did_change() { }
 };
 
diff --git a/Applications/PixelPaint/ImageEditor.cpp b/Applications/PixelPaint/ImageEditor.cpp
index e0679f5199..e1a295a11c 100644
--- a/Applications/PixelPaint/ImageEditor.cpp
+++ b/Applications/PixelPaint/ImageEditor.cpp
@@ -29,8 +29,8 @@
 #include "Layer.h"
 #include "Tool.h"
 #include <LibGUI/Painter.h>
-#include <LibGfx/Rect.h>
 #include <LibGfx/Palette.h>
+#include <LibGfx/Rect.h>
 
 namespace PixelPaint {
 
diff --git a/Applications/PixelPaint/MoveTool.cpp b/Applications/PixelPaint/MoveTool.cpp
index 52abbb2a41..cf6cea9975 100644
--- a/Applications/PixelPaint/MoveTool.cpp
+++ b/Applications/PixelPaint/MoveTool.cpp
@@ -108,22 +108,28 @@ void MoveTool::on_context_menu(Layer& layer, GUI::ContextMenuEvent& event)
 {
     if (!m_context_menu) {
         m_context_menu = GUI::Menu::construct();
-        m_context_menu->add_action(GUI::CommonActions::make_move_to_front_action([this](auto&) {
-            m_editor->image()->move_layer_to_front(*m_context_menu_layer);
-            m_editor->layers_did_change();
-        }, m_editor));
-        m_context_menu->add_action(GUI::CommonActions::make_move_to_back_action([this](auto&) {
-            m_editor->image()->move_layer_to_back(*m_context_menu_layer);
-            m_editor->layers_did_change();
-        }, m_editor));
+        m_context_menu->add_action(GUI::CommonActions::make_move_to_front_action(
+            [this](auto&) {
+                m_editor->image()->move_layer_to_front(*m_context_menu_layer);
+                m_editor->layers_did_change();
+            },
+            m_editor));
+        m_context_menu->add_action(GUI::CommonActions::make_move_to_back_action(
+            [this](auto&) {
+                m_editor->image()->move_layer_to_back(*m_context_menu_layer);
+                m_editor->layers_did_change();
+            },
+            m_editor));
         m_context_menu->add_separator();
-        m_context_menu->add_action(GUI::Action::create("Delete layer", Gfx::Bitmap::load_from_file("/res/icons/16x16/delete.png"), [this](auto&) {
-            m_editor->image()->remove_layer(*m_context_menu_layer);
-            // FIXME: This should not be done imperatively here. Perhaps a Image::Client interface that ImageEditor can implement?
-            if (m_editor->active_layer() == m_context_menu_layer)
-                m_editor->set_active_layer(nullptr);
-            m_editor->layers_did_change();
-        }, m_editor));
+        m_context_menu->add_action(GUI::Action::create(
+            "Delete layer", Gfx::Bitmap::load_from_file("/res/icons/16x16/delete.png"), [this](auto&) {
+                m_editor->image()->remove_layer(*m_context_menu_layer);
+                // FIXME: This should not be done imperatively here. Perhaps a Image::Client interface that ImageEditor can implement?
+                if (m_editor->active_layer() == m_context_menu_layer)
+                    m_editor->set_active_layer(nullptr);
+                m_editor->layers_did_change();
+            },
+            m_editor));
     }
     m_context_menu_layer = layer;
     m_context_menu->popup(event.screen_position());
diff --git a/Applications/PixelPaint/PenTool.h b/Applications/PixelPaint/PenTool.h
index 18d0cdae98..ff7d4555f6 100644
--- a/Applications/PixelPaint/PenTool.h
+++ b/Applications/PixelPaint/PenTool.h
@@ -27,8 +27,8 @@
 #pragma once
 
 #include "Tool.h"
-#include <LibGfx/Point.h>
 #include <LibGUI/ActionGroup.h>
+#include <LibGfx/Point.h>
 
 namespace PixelPaint {
 
diff --git a/Applications/PixelPaint/PickerTool.h b/Applications/PixelPaint/PickerTool.h
index 862810c79f..327dfffcb2 100644
--- a/Applications/PixelPaint/PickerTool.h
+++ b/Applications/PixelPaint/PickerTool.h
@@ -39,7 +39,6 @@ public:
 
 private:
     virtual const char* class_name() const override { return "PickerTool"; }
-
 };
 
 }
diff --git a/Applications/PixelPaint/RectangleTool.h b/Applications/PixelPaint/RectangleTool.h
index dd6c41c846..4288c86235 100644
--- a/Applications/PixelPaint/RectangleTool.h
+++ b/Applications/PixelPaint/RectangleTool.h
@@ -27,8 +27,8 @@
 #pragma once
 
 #include "Tool.h"
-#include <LibGfx/Point.h>
 #include <LibGUI/Forward.h>
+#include <LibGfx/Point.h>
 
 namespace PixelPaint {
 
diff --git a/Applications/PixelPaint/Tool.h b/Applications/PixelPaint/Tool.h
index b223ab7042..9c70f218f9 100644
--- a/Applications/PixelPaint/Tool.h
+++ b/Applications/PixelPaint/Tool.h
@@ -40,14 +40,14 @@ public:
 
     virtual const char* class_name() const = 0;
 
-    virtual void on_mousedown(Layer&, GUI::MouseEvent&, GUI::MouseEvent&) {}
-    virtual void on_mousemove(Layer&, GUI::MouseEvent&, GUI::MouseEvent&) {}
-    virtual void on_mouseup(Layer&, GUI::MouseEvent&, GUI::MouseEvent&) {}
-    virtual void on_context_menu(Layer&, GUI::ContextMenuEvent&) {}
-    virtual void on_tool_button_contextmenu(GUI::ContextMenuEvent&) {}
-    virtual void on_second_paint(const Layer&, GUI::PaintEvent&) {}
-    virtual void on_keydown(GUI::KeyEvent&) {}
-    virtual void on_keyup(GUI::KeyEvent&) {}
+    virtual void on_mousedown(Layer&, GUI::MouseEvent&, GUI::MouseEvent&) { }
+    virtual void on_mousemove(Layer&, GUI::MouseEvent&, GUI::MouseEvent&) { }
+    virtual void on_mouseup(Layer&, GUI::MouseEvent&, GUI::MouseEvent&) { }
+    virtual void on_context_menu(Layer&, GUI::ContextMenuEvent&) { }
+    virtual void on_tool_button_contextmenu(GUI::ContextMenuEvent&) { }
+    virtual void on_second_paint(const Layer&, GUI::PaintEvent&) { }
+    virtual void on_keydown(GUI::KeyEvent&) { }
+    virtual void on_keyup(GUI::KeyEvent&) { }
 
     virtual bool is_move_tool() const { return false; }
 
diff --git a/Applications/SoundPlayer/SampleWidget.h b/Applications/SoundPlayer/SampleWidget.h
index 04aeb34ba1..7da9c20b38 100644
--- a/Applications/SoundPlayer/SampleWidget.h
+++ b/Applications/SoundPlayer/SampleWidget.h
@@ -38,6 +38,7 @@ public:
     virtual ~SampleWidget() override;
 
     void set_buffer(Audio::Buffer*);
+
 private:
     SampleWidget();
     virtual void paint_event(GUI::PaintEvent&) override;
diff --git a/Applications/SoundPlayer/main.cpp b/Applications/SoundPlayer/main.cpp
index 66fab01b71..63b71f81cb 100644
--- a/Applications/SoundPlayer/main.cpp
+++ b/Applications/SoundPlayer/main.cpp
@@ -26,7 +26,6 @@
 
 #include "SoundPlayerWidget.h"
 #include <LibAudio/ClientConnection.h>
-#include <LibGfx/CharacterBitmap.h>
 #include <LibGUI/AboutDialog.h>
 #include <LibGUI/Action.h>
 #include <LibGUI/Application.h>
@@ -34,6 +33,7 @@
 #include <LibGUI/Menu.h>
 #include <LibGUI/MenuBar.h>
 #include <LibGUI/Window.h>
+#include <LibGfx/CharacterBitmap.h>
 #include <stdio.h>
 
 int main(int argc, char** argv)
diff --git a/Applications/SystemMonitor/ProcessFileDescriptorMapWidget.h b/Applications/SystemMonitor/ProcessFileDescriptorMapWidget.h
index 97e68b6bd1..2c45577525 100644
--- a/Applications/SystemMonitor/ProcessFileDescriptorMapWidget.h
+++ b/Applications/SystemMonitor/ProcessFileDescriptorMapWidget.h
@@ -30,6 +30,7 @@
 
 class ProcessFileDescriptorMapWidget final : public GUI::Widget {
     C_OBJECT(ProcessFileDescriptorMapWidget);
+
 public:
     virtual ~ProcessFileDescriptorMapWidget() override;
 
diff --git a/Applications/SystemMonitor/ProcessMemoryMapWidget.cpp b/Applications/SystemMonitor/ProcessMemoryMapWidget.cpp
index 7eef9185d3..978005422b 100644
--- a/Applications/SystemMonitor/ProcessMemoryMapWidget.cpp
+++ b/Applications/SystemMonitor/ProcessMemoryMapWidget.cpp
@@ -35,7 +35,7 @@
 
 class PagemapPaintingDelegate final : public GUI::TableCellPaintingDelegate {
 public:
-    virtual ~PagemapPaintingDelegate() override {}
+    virtual ~PagemapPaintingDelegate() override { }
 
     virtual void paint(GUI::Painter& painter, const Gfx::IntRect& a_rect, const Gfx::Palette&, const GUI::ModelIndex& index) override
     {
diff --git a/Applications/SystemMonitor/ProcessUnveiledPathsWidget.h b/Applications/SystemMonitor/ProcessUnveiledPathsWidget.h
index d930c90bf7..d1eac898b2 100644
--- a/Applications/SystemMonitor/ProcessUnveiledPathsWidget.h
+++ b/Applications/SystemMonitor/ProcessUnveiledPathsWidget.h
@@ -30,6 +30,7 @@
 
 class ProcessUnveiledPathsWidget final : public GUI::Widget {
     C_OBJECT(ProcessUnveiledPathsWidget);
+
 public:
     virtual ~ProcessUnveiledPathsWidget() override;
 
diff --git a/Applications/ThemeEditor/PreviewWidget.cpp b/Applications/ThemeEditor/PreviewWidget.cpp
index e2ac55a2b4..a3d90b17ee 100644
--- a/Applications/ThemeEditor/PreviewWidget.cpp
+++ b/Applications/ThemeEditor/PreviewWidget.cpp
@@ -94,8 +94,8 @@ PreviewWidget::PreviewWidget(const Gfx::Palette& preview_palette)
     m_inactive_window_icon = Gfx::Bitmap::load_from_file("/res/icons/16x16/window.png");
 
     m_close_bitmap = Gfx::Bitmap::load_from_file("/res/icons/16x16/window-close.png");
-    m_maximize_bitmap = Gfx::Bitmap::load_from_file("/res/icons/16x16/window-maximize.png");;
-    m_minimize_bitmap = Gfx::Bitmap::load_from_file("/res/icons/16x16/window-minimize.png");;
+    m_maximize_bitmap = Gfx::Bitmap::load_from_file("/res/icons/16x16/window-maximize.png");
+    m_minimize_bitmap = Gfx::Bitmap::load_from_file("/res/icons/16x16/window-minimize.png");
 
     m_gallery = add<MiniWidgetGallery>();
     set_greedy_for_hits(true);