diff --git a/application/settings.cpp b/application/settings.cpp
index be5e1c1..f3bb8d7 100644
--- a/application/settings.cpp
+++ b/application/settings.cpp
@@ -81,6 +81,11 @@ void restore()
     v.editor.autoCompletition.trimWhitespaces = settings.value(QStringLiteral("trimwhitespaces"), true).toBool();
     v.editor.autoCompletition.formatNames = settings.value(QStringLiteral("formatnames"), false).toBool();
     v.editor.autoCompletition.fixUmlauts = settings.value(QStringLiteral("fixumlauts"), false).toBool();
+    settings.beginGroup(QStringLiteral("customsubst"));
+    v.editor.autoCompletition.customSubstitution.enabled = settings.value(QStringLiteral("enabled")).toBool();
+    v.editor.autoCompletition.customSubstitution.regex = settings.value(QStringLiteral("regex")).toRegularExpression();
+    v.editor.autoCompletition.customSubstitution.replacement = settings.value(QStringLiteral("replacement")).toString();
+    settings.endGroup();
     settings.endGroup();
     v.editor.backupDirectory = settings.value(QStringLiteral("tempdir")).toString().toStdString();
     v.editor.hideCoverButtons = settings.value(QStringLiteral("hidecoverbtn"), false).toBool();
@@ -225,6 +230,11 @@ void save()
     settings.setValue(QStringLiteral("trimwhitespaces"), v.editor.autoCompletition.trimWhitespaces);
     settings.setValue(QStringLiteral("formatnames"), v.editor.autoCompletition.formatNames);
     settings.setValue(QStringLiteral("fixumlauts"), v.editor.autoCompletition.fixUmlauts);
+    settings.beginGroup(QStringLiteral("customsubst"));
+    settings.setValue(QStringLiteral("enabled"), v.editor.autoCompletition.customSubstitution.enabled);
+    settings.setValue(QStringLiteral("regex"), v.editor.autoCompletition.customSubstitution.regex);
+    settings.setValue(QStringLiteral("replacement"), v.editor.autoCompletition.customSubstitution.replacement);
+    settings.endGroup();
     settings.endGroup();
     settings.setValue(QStringLiteral("tempdir"), QString::fromStdString(v.editor.backupDirectory));
     settings.setValue(QStringLiteral("hidecoverbtn"), v.editor.hideCoverButtons);
diff --git a/application/settings.h b/application/settings.h
index be97ac1..4f867a3 100644
--- a/application/settings.h
+++ b/application/settings.h
@@ -12,6 +12,7 @@
 #include <qtutilities/settingsdialog/qtsettings.h>
 
 #include <QByteArray>
+#include <QRegularExpression>
 #include <QString>
 
 namespace Settings {
@@ -22,12 +23,19 @@ enum class AdoptFields { Never, WithinDirectory, Always };
 
 enum class MultipleTagHandling { SingleEditorPerTarget, SeparateEditors };
 
+struct CustomSubstitution {
+    QRegularExpression regex;
+    QString replacement;
+    bool enabled = false;
+};
+
 struct AutoCompletition {
     AutoCompletition();
     bool insertTitleFromFilename = false;
     bool trimWhitespaces = true;
     bool formatNames = false;
     bool fixUmlauts = false;
+    CustomSubstitution customSubstitution;
     KnownFieldModel fields;
 };
 
diff --git a/gui/editorautocorrectionoptionpage.ui b/gui/editorautocorrectionoptionpage.ui
index 1fefa99..21eb7b5 100644
--- a/gui/editorautocorrectionoptionpage.ui
+++ b/gui/editorautocorrectionoptionpage.ui
@@ -28,28 +28,75 @@
       <item>
        <widget class="QCheckBox" name="insertTitleFromFilenameCheckBox">
         <property name="text">
-         <string>insert title from filename if none present</string>
+         <string>Insert title from filename if none present</string>
         </property>
        </widget>
       </item>
       <item>
        <widget class="QCheckBox" name="trimWhitespacesCheckBox">
         <property name="text">
-         <string>trim whitespaces</string>
+         <string>Trim whitespaces</string>
         </property>
        </widget>
       </item>
       <item>
        <widget class="QCheckBox" name="formatNamesCheckBox">
         <property name="text">
-         <string>format names like &quot;an example_name&quot; to &quot;An Example Name&quot;</string>
+         <string>Format names like &quot;an example_name&quot; to &quot;An Example Name&quot;</string>
         </property>
        </widget>
       </item>
       <item>
        <widget class="QCheckBox" name="fixUmlautsCheckBox">
         <property name="text">
-         <string>fix umlauts (replaces ae with ä for example)</string>
+         <string>Fix umlauts (replaces ae with ä for example)</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="QCheckBox" name="customSubstitutionCheckBox">
+        <property name="text">
+         <string>Custom substitution</string>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item>
+    <widget class="QGroupBox" name="customSubstitutionGroupBox">
+     <property name="title">
+      <string>Custom substitution</string>
+     </property>
+     <property name="checkable">
+      <bool>true</bool>
+     </property>
+     <layout class="QFormLayout" name="formLayout">
+      <item row="0" column="0">
+       <widget class="QLabel" name="matchLabel">
+        <property name="text">
+         <string>Match pattern</string>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="0">
+       <widget class="QLabel" name="replacementLabel">
+        <property name="text">
+         <string>Replacement</string>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="1">
+       <widget class="QLineEdit" name="regularExpressionLineEdit">
+        <property name="placeholderText">
+         <string>regular expression</string>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="1">
+       <widget class="QLineEdit" name="replacementLineEdit">
+        <property name="placeholderText">
+         <string>replacement (use \1, \2, … for capture expressions)</string>
         </property>
        </widget>
       </item>
diff --git a/gui/settingsdialog.cpp b/gui/settingsdialog.cpp
index 2396704..4fdf15d 100644
--- a/gui/settingsdialog.cpp
+++ b/gui/settingsdialog.cpp
@@ -219,6 +219,10 @@ bool EditorAutoCorrectionOptionPage::apply()
         settings.trimWhitespaces = ui()->trimWhitespacesCheckBox->isChecked();
         settings.formatNames = ui()->formatNamesCheckBox->isChecked();
         settings.fixUmlauts = ui()->fixUmlautsCheckBox->isChecked();
+        auto &subst = settings.customSubstitution;
+        subst.enabled = ui()->customSubstitutionGroupBox->isChecked();
+        subst.regex = QRegularExpression(ui()->regularExpressionLineEdit->text());
+        subst.replacement = ui()->replacementLineEdit->text();
         if (m_model) {
             settings.fields.setItems(m_model->items());
         }
@@ -234,6 +238,10 @@ void EditorAutoCorrectionOptionPage::reset()
         ui()->trimWhitespacesCheckBox->setChecked(settings.trimWhitespaces);
         ui()->formatNamesCheckBox->setChecked(settings.formatNames);
         ui()->fixUmlautsCheckBox->setChecked(settings.fixUmlauts);
+        const auto &subst = settings.customSubstitution;
+        ui()->customSubstitutionGroupBox->setChecked(subst.enabled);
+        ui()->regularExpressionLineEdit->setText(subst.regex.pattern());
+        ui()->replacementLineEdit->setText(subst.replacement);
         if (m_model) {
             m_model->setItems(settings.fields.items());
         }
diff --git a/gui/tagfieldedit.cpp b/gui/tagfieldedit.cpp
index c1fc45f..f26cc7b 100644
--- a/gui/tagfieldedit.cpp
+++ b/gui/tagfieldedit.cpp
@@ -787,6 +787,10 @@ QString TagFieldEdit::applyAutoCorrection(const QString &textValue)
     if (settings.fixUmlauts) {
         correctedValue = Utility::fixUmlauts(correctedValue);
     }
+    const auto &subst = settings.customSubstitution;
+    if (subst.enabled && subst.regex.isValid()) {
+        correctedValue.replace(subst.regex, subst.replacement);
+    }
     return correctedValue;
 }