diff --git a/Source/Core/DolphinQt/Debugger/CodeDiffDialog.cpp b/Source/Core/DolphinQt/Debugger/CodeDiffDialog.cpp
diff --git a/Source/Core/DolphinQt/Debugger/CodeDiffDialog.h b/Source/Core/DolphinQt/Debugger/CodeDiffDialog.h
@@ -0,0 +1,71 @@
+// Copyright 2022 Dolphin Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <QDialog>
+#include <string>
+#include <vector>
+#include "Common/CommonTypes.h"
+
+class CodeWidget;
+class QLabel;
+class QPushButton;
+class QTableWidget;
+
+struct Diff
+{
+  u32 addr;
+  std::string symbol;
+  u32 hits;
+  u32 total_hits;
+
+  bool operator<(const std::string& val) const { return symbol < val; }
+};
+
+class CodeDiffDialog : public QDialog
+{
+  Q_OBJECT
+
+public:
+  explicit CodeDiffDialog(CodeWidget* parent);
+  void reject() override;
+
+private:
+  void CreateWidgets();
+  void ConnectWidgets();
+  void ClearData();
+  void ClearBlockCache();
+  void OnClickItem();
+  void OnRecord(bool enabled);
+  std::vector<Diff> CalculateSymbolsFromProfile();
+  void OnInclude();
+  void OnExclude();
+  void RemoveMissingSymbolsFromIncludes(const std::vector<Diff>& symbol_diff);
+  void RemoveMatchingSymbolsFromIncludes(const std::vector<Diff>& symbol_list);
+  void Update(bool include);
+  void InfoDisp();
+
+  void OnContextMenu();
+
+  void OnGoTop();
+  void OnDelete();
+  void OnSetBLR();
+
+  void UpdateItem();
+
+  QTableWidget* m_matching_results_table;
+  QLabel* m_exclude_size_label;
+  QLabel* m_include_size_label;
+  QPushButton* m_exclude_btn;
+  QPushButton* m_include_btn;
+  QPushButton* m_record_btn;
+  QPushButton* m_reset_btn;
+  QPushButton* m_help_btn;
+  CodeWidget* m_code_widget;
+
+  std::vector<Diff> m_exclude;
+  std::vector<Diff> m_include;
+  bool m_failed_requirements = false;
+  bool m_include_active = false;
+};
diff --git a/Source/Core/DolphinQt/Debugger/CodeWidget.cpp b/Source/Core/DolphinQt/Debugger/CodeWidget.cpp
@@ -9,6 +9,7 @@
 #include <QGroupBox>
 #include <QLineEdit>
 #include <QListWidget>
+#include <QPushButton>
 #include <QSplitter>
 #include <QTableWidget>
 #include <QWidget>
@@ -95,6 +96,7 @@ void CodeWidget::CreateWidgets()
 
   m_search_address = new QLineEdit;
   m_search_symbols = new QLineEdit;
+  m_code_diff = new QPushButton(tr("Diff"));
   m_code_view = new CodeViewWidget;
 
   m_search_address->setPlaceholderText(tr("Search Address"));
@@ -146,6 +148,7 @@ void CodeWidget::CreateWidgets()
 
   layout->addWidget(m_search_address, 0, 0);
   layout->addWidget(m_search_symbols, 0, 1);
+  layout->addWidget(m_code_diff, 0, 2);
   layout->addWidget(m_code_splitter, 1, 0, -1, -1);
 
   QWidget* widget = new QWidget(this);
@@ -158,6 +161,7 @@ void CodeWidget::ConnectWidgets()
   connect(m_search_address, &QLineEdit::textChanged, this, &CodeWidget::OnSearchAddress);
   connect(m_search_address, &QLineEdit::returnPressed, this, &CodeWidget::OnSearchAddress);
   connect(m_search_symbols, &QLineEdit::textChanged, this, &CodeWidget::OnSearchSymbols);
+  connect(m_code_diff, &QPushButton::pressed, this, &CodeWidget::OnDiff);
 
   connect(m_symbols_list, &QListWidget::itemPressed, this, &CodeWidget::OnSelectSymbol);
   connect(m_callstack_list, &QListWidget::itemPressed, this, &CodeWidget::OnSelectCallstack);
@@ -176,6 +180,16 @@ void CodeWidget::ConnectWidgets()
   connect(m_code_view, &CodeViewWidget::ShowMemory, this, &CodeWidget::ShowMemory);
 }
 
+void CodeWidget::OnDiff()
+{
+  if (!m_diff_dialog)
+    m_diff_dialog = new CodeDiffDialog(this);
+  m_diff_dialog->setWindowFlag(Qt::WindowMinimizeButtonHint);
+  m_diff_dialog->show();
+  m_diff_dialog->raise();
+  m_diff_dialog->activateWindow();
+}
+
 void CodeWidget::OnSearchAddress()
 {
   bool good = true;

diff --git a/Source/Core/DolphinQt/Debugger/CodeWidget.h b/Source/Core/DolphinQt/Debugger/CodeWidget.h
@@ -7,13 +7,15 @@
 #include <QString>
 
 #include "Common/CommonTypes.h"
+#include "DolphinQt/Debugger/CodeDiffDialog.h"
 #include "DolphinQt/Debugger/CodeViewWidget.h"
 
 class QCloseEvent;
 class QLineEdit;
 class QShowEvent;
 class QSplitter;
 class QListWidget;
+class QPushButton;
 class QTableWidget;
 
 namespace Common
@@ -35,6 +37,7 @@ class CodeWidget : public QDockWidget
   void ShowPC();
   void SetPC();
 
+  void OnDiff();
   void ToggleBreakpoint();
   void AddBreakpoint();
   void SetAddress(u32 address, CodeViewWidget::SetAddressUpdate update);
@@ -63,8 +66,10 @@ class CodeWidget : public QDockWidget
   void closeEvent(QCloseEvent*) override;
   void showEvent(QShowEvent* event) override;
 
+  CodeDiffDialog* m_diff_dialog = nullptr;
   QLineEdit* m_search_address;
   QLineEdit* m_search_symbols;
+  QPushButton* m_code_diff;
 
   QListWidget* m_callstack_list;
   QListWidget* m_symbols_list;

diff --git a/Source/Core/DolphinQt/DolphinQt.vcxproj b/Source/Core/DolphinQt/DolphinQt.vcxproj
@@ -119,6 +119,7 @@
     <ClCompile Include="Config\WiimoteControllersWidget.cpp" />
     <ClCompile Include="ConvertDialog.cpp" />
     <ClCompile Include="Debugger\BreakpointWidget.cpp" />
+    <ClCompile Include="Debugger\CodeDiffDialog.cpp" />
     <ClCompile Include="Debugger\CodeViewWidget.cpp" />
     <ClCompile Include="Debugger\CodeWidget.cpp" />
     <ClCompile Include="Debugger\JITWidget.cpp" />
@@ -305,6 +306,7 @@
     <QtMoc Include="Config\WiimoteControllersWidget.h" />
     <QtMoc Include="ConvertDialog.h" />
     <QtMoc Include="Debugger\BreakpointWidget.h" />
+    <QtMoc Include="Debugger\CodeDiffDialog.h" />
     <QtMoc Include="Debugger\CodeViewWidget.h" />
     <QtMoc Include="Debugger\CodeWidget.h" />
     <QtMoc Include="Debugger\JITWidget.h" />