diff --git a/src/duckstation-qt/memorycardeditordialog.cpp b/src/duckstation-qt/memorycardeditordialog.cpp
index 72fc1f61f..5855cd2ed 100644
--- a/src/duckstation-qt/memorycardeditordialog.cpp
+++ b/src/duckstation-qt/memorycardeditordialog.cpp
@@ -94,6 +94,8 @@ void MemoryCardEditorDialog::connectUi()
   connect(m_ui.saveCardB, &QPushButton::clicked, [this]() { saveCard(&m_card_b); });
   connect(m_ui.importCardA, &QPushButton::clicked, [this]() { importCard(&m_card_a); });
   connect(m_ui.importCardB, &QPushButton::clicked, [this]() { importCard(&m_card_b); });
+  connect(m_ui.formatCardA, &QPushButton::clicked, [this]() { formatCard(&m_card_a); });
+  connect(m_ui.formatCardB, &QPushButton::clicked, [this]() { formatCard(&m_card_b); });
   connect(m_ui.exportFile, &QPushButton::clicked, this, &MemoryCardEditorDialog::doExportSaveFile);
   connect(m_ui.importFileToCardA, &QPushButton::clicked, [this]() { importSaveFile(&m_card_a); });
   connect(m_ui.importFileToCardB, &QPushButton::clicked, [this]() { importSaveFile(&m_card_b); });
@@ -435,6 +437,29 @@ void MemoryCardEditorDialog::importCard(Card* card)
   updateButtonState();
 }
 
+void MemoryCardEditorDialog::formatCard(Card* card)
+{
+  promptForSave(card);
+
+  if (QMessageBox::question(this, tr("Format memory card?"),
+                            tr("Formatting the memory card will destroy all saves, and they will not be recoverable. "
+                               "The memory card which will be formatted is located at '%1'.")
+                              .arg(QString::fromStdString(card->filename)),
+                            QMessageBox::Yes, QMessageBox::No) == QMessageBox::No)
+  {
+    return;
+  }
+
+  clearSelection();
+
+  MemoryCardImage::Format(&card->data);
+
+  updateCardTable(card);
+  updateCardBlocksFree(card);
+  setCardDirty(card);
+  updateButtonState();
+}
+
 void MemoryCardEditorDialog::importSaveFile(Card* card)
 {
   QString filename =
@@ -492,4 +517,6 @@ void MemoryCardEditorDialog::updateButtonState()
   m_ui.importCardB->setEnabled(card_b_present);
   m_ui.importFileToCardA->setEnabled(card_a_present);
   m_ui.importFileToCardB->setEnabled(card_b_present);
+  m_ui.formatCardA->setEnabled(card_a_present);
+  m_ui.formatCardB->setEnabled(card_b_present);
 }
diff --git a/src/duckstation-qt/memorycardeditordialog.h b/src/duckstation-qt/memorycardeditordialog.h
index d6d3cb35f..1cb0fdb84 100644
--- a/src/duckstation-qt/memorycardeditordialog.h
+++ b/src/duckstation-qt/memorycardeditordialog.h
@@ -56,6 +56,7 @@ private:
   void saveCard(Card* card);
   void promptForSave(Card* card);
   void importCard(Card* card);
+  void formatCard(Card* card);
 
   void doExportSaveFile();
   void importSaveFile(Card* card);
diff --git a/src/duckstation-qt/memorycardeditordialog.ui b/src/duckstation-qt/memorycardeditordialog.ui
index 9997651c7..9c7d2bb7b 100644
--- a/src/duckstation-qt/memorycardeditordialog.ui
+++ b/src/duckstation-qt/memorycardeditordialog.ui
@@ -97,7 +97,7 @@
     </layout>
    </item>
    <item row="2" column="3">
-    <layout class="QHBoxLayout" name="horizontalLayout_3" stretch="1,0,0,0">
+    <layout class="QHBoxLayout" name="horizontalLayout_3" stretch="1,0,0,0,0">
      <item>
       <widget class="QLabel" name="cardBUsage">
        <property name="text">
@@ -105,6 +105,16 @@
        </property>
       </widget>
      </item>
+     <item>
+      <widget class="QPushButton" name="formatCardB">
+       <property name="enabled">
+        <bool>false</bool>
+       </property>
+       <property name="text">
+        <string>Format Card</string>
+       </property>
+      </widget>
+     </item>
      <item>
       <widget class="QPushButton" name="importFileToCardB">
        <property name="enabled">
@@ -138,7 +148,7 @@
     </layout>
    </item>
    <item row="2" column="0">
-    <layout class="QHBoxLayout" name="horizontalLayout_4" stretch="1,0,0,0">
+    <layout class="QHBoxLayout" name="horizontalLayout_4" stretch="1,0,0,0,0">
      <item>
       <widget class="QLabel" name="cardAUsage">
        <property name="text">
@@ -146,6 +156,16 @@
        </property>
       </widget>
      </item>
+     <item>
+      <widget class="QPushButton" name="formatCardA">
+       <property name="enabled">
+        <bool>false</bool>
+       </property>
+       <property name="text">
+        <string>Format Card</string>
+       </property>
+      </widget>
+     </item>
      <item>
       <widget class="QPushButton" name="importFileToCardA">
        <property name="enabled">