diff --git a/Editor/CMakeLists.txt b/Editor/CMakeLists.txt
index 45b9bb6..8ae2298 100644
--- a/Editor/CMakeLists.txt
+++ b/Editor/CMakeLists.txt
@@ -61,6 +61,10 @@ add_executable(amuse-gui WIN32 MACOSX_BUNDLE
 )
 
 target_compile_definitions(amuse-gui PRIVATE
+  # Disable implicit conversions from ASCII to QString.
+  -DQT_NO_CAST_FROM_ASCII
+  -DQT_NO_CAST_TO_ASCII
+
   # Allows for more efficient string concatenation, resulting in less temporaries.
   -DQT_USE_QSTRINGBUILDER 
 )
diff --git a/Editor/MainWindow.cpp b/Editor/MainWindow.cpp
index 9a8015f..ca98229 100644
--- a/Editor/MainWindow.cpp
+++ b/Editor/MainWindow.cpp
@@ -250,13 +250,12 @@ void MainWindow::updateWindowTitle() {
 }
 
 void MainWindow::updateRecentFileActions() {
-  QSettings settings;
-  QStringList files = settings.value("recentFileList").toStringList();
-
-  int numRecentFiles = std::min(files.size(), int(MaxRecentFiles));
+  const QSettings settings;
+  const QStringList files = settings.value(QStringLiteral("recentFileList")).toStringList();
+  const int numRecentFiles = std::min(files.size(), int(MaxRecentFiles));
 
   for (int i = 0; i < numRecentFiles; ++i) {
-    QString text = QStringLiteral("&%1 %2").arg(i + 1).arg(QDir(files[i]).dirName());
+    const QString text = QStringLiteral("&%1 %2").arg(i + 1).arg(QDir(files[i]).dirName());
     m_recentFileActs[i]->setText(text);
     m_recentFileActs[i]->setData(files[i]);
     m_recentFileActs[i]->setToolTip(files[i]);
@@ -321,13 +320,15 @@ bool MainWindow::setProjectPath(const QString& path) {
 
   updateNavigationButtons();
 
+  const QString key = QStringLiteral("recentFileList");
   QSettings settings;
-  QStringList files = settings.value("recentFileList").toStringList();
+  QStringList files = settings.value(key).toStringList();
   files.removeAll(dir.path());
   files.prepend(dir.path());
-  while (files.size() > MaxRecentFiles)
+  while (files.size() > MaxRecentFiles) {
     files.removeLast();
-  settings.setValue("recentFileList", files);
+  }
+  settings.setValue(key, files);
   settings.sync();
 
   updateRecentFileActions();
@@ -801,24 +802,30 @@ void MainWindow::_openAction(const QString& path) {
 }
 
 void MainWindow::openRecentFileAction() {
-  if (!askAboutSave())
+  if (!askAboutSave()) {
     return;
+  }
 
-  if (QAction* action = qobject_cast<QAction*>(sender()))
-    if (!openProject(action->data().toString())) {
-      QString path = action->data().toString();
-      QSettings settings;
-      QStringList files = settings.value("recentFileList").toStringList();
-      files.removeAll(path);
-      settings.setValue("recentFileList", files);
-      settings.sync();
-      updateRecentFileActions();
+  if (const QAction* action = qobject_cast<QAction*>(sender())) {
+    const QString path = action->data().toString();
+    if (openProject(path)) {
+      return;
     }
+
+    const QString key = QStringLiteral("recentFileList");
+    QSettings settings;
+    QStringList files = settings.value(key).toStringList();
+
+    files.removeAll(path);
+    settings.setValue(key, files);
+    settings.sync();
+    updateRecentFileActions();
+  }
 }
 
 void MainWindow::clearRecentFilesAction() {
   QSettings settings;
-  settings.setValue("recentFileList", QStringList());
+  settings.setValue(QStringLiteral("recentFileList"), QStringList());
   settings.sync();
   updateRecentFileActions();
 }
@@ -943,11 +950,10 @@ void MainWindow::_importAction(const QString& path) {
       ProjectModel* model = m_projectModel;
       startBackgroundTask(
           TaskImport, tr("Importing"), tr("Scanning Project"), [model, path, importMode](BackgroundTask& task) {
-            QDir dir = QFileInfo(path).dir();
-            QStringList filters;
-            filters << "*.proj"
-                    << "*.pro";
-            QStringList files = dir.entryList(filters, QDir::Files);
+            const QDir dir = QFileInfo(path).dir();
+            const QStringList filters{QStringLiteral("*.proj"), QStringLiteral("*.pro")};
+            const QStringList files = dir.entryList(filters, QDir::Files);
+
             for (const QString& fPath : files) {
               auto data = amuse::ContainerRegistry::LoadContainer(QStringToSysString(dir.filePath(fPath)).c_str());
               for (auto& p : data) {
diff --git a/Editor/ProjectModel.cpp b/Editor/ProjectModel.cpp
index f268856..e06d338 100644
--- a/Editor/ProjectModel.cpp
+++ b/Editor/ProjectModel.cpp
@@ -492,9 +492,9 @@ ProjectModel::ProjectModel(const QString& path, QObject* parent)
 : QAbstractItemModel(parent), m_dir(path), m_outlineProxy(this), m_nullProxy(this), m_pageObjectProxy(this) {
   m_root = amuse::MakeObj<RootNode>();
 
-  GroupNode::Icon = QIcon(":/icons/IconGroup.svg");
-  SongGroupNode::Icon = QIcon(":/icons/IconSongGroup.svg");
-  SoundGroupNode::Icon = QIcon(":/icons/IconSoundGroup.svg");
+  GroupNode::Icon = QIcon(QStringLiteral(":/icons/IconGroup.svg"));
+  SongGroupNode::Icon = QIcon(QStringLiteral(":/icons/IconSongGroup.svg"));
+  SoundGroupNode::Icon = QIcon(QStringLiteral(":/icons/IconSoundGroup.svg"));
 }
 
 bool ProjectModel::clearProjectData() {
@@ -800,15 +800,15 @@ void ProjectModel::updateNodeNames() {
     gn->oneLevelTraverse([](INode* n) {
       if (n->type() == INode::Type::SongGroup) {
         SongGroupNode* sgn = static_cast<SongGroupNode*>(n);
-        sgn->m_name = amuse::GroupId::CurNameDB->resolveNameFromId(sgn->m_id).data();
+        sgn->m_name = QString::fromUtf8(amuse::GroupId::CurNameDB->resolveNameFromId(sgn->m_id).data());
       } else if (n->type() == INode::Type::SoundGroup) {
         SoundGroupNode* sgn = static_cast<SoundGroupNode*>(n);
-        sgn->m_name = amuse::GroupId::CurNameDB->resolveNameFromId(sgn->m_id).data();
+        sgn->m_name = QString::fromUtf8(amuse::GroupId::CurNameDB->resolveNameFromId(sgn->m_id).data());
       } else if (n->type() == INode::Type::Collection) {
         CollectionNode* cn = static_cast<CollectionNode*>(n);
         cn->oneLevelTraverse([](INode* n) {
           BasePoolObjectNode* on = static_cast<BasePoolObjectNode*>(n);
-          on->m_name = on->getNameDb()->resolveNameFromId(on->m_id).data();
+          on->m_name = QString::fromUtf8(on->getNameDb()->resolveNameFromId(on->m_id).data());
           return true;
         });
         cn->_sortChildren();
@@ -824,12 +824,13 @@ void ProjectModel::updateNodeNames() {
 
 void ProjectModel::_buildGroupNodeCollections(GroupNode& gn) {
   gn.reserve(6);
-  gn._appendChild<CollectionNode>(tr("Sound Macros"), QIcon(":/icons/IconSoundMacro.svg"), INode::Type::SoundMacro);
-  gn._appendChild<CollectionNode>(tr("ADSRs"), QIcon(":/icons/IconADSR.svg"), INode::Type::ADSR);
-  gn._appendChild<CollectionNode>(tr("Curves"), QIcon(":/icons/IconCurve.svg"), INode::Type::Curve);
-  gn._appendChild<CollectionNode>(tr("Keymaps"), QIcon(":/icons/IconKeymap.svg"), INode::Type::Keymap);
-  gn._appendChild<CollectionNode>(tr("Layers"), QIcon(":/icons/IconLayers.svg"), INode::Type::Layer);
-  gn._appendChild<CollectionNode>(tr("Samples"), QIcon(":/icons/IconSample.svg"), INode::Type::Sample);
+  gn._appendChild<CollectionNode>(tr("Sound Macros"), QIcon(QStringLiteral(":/icons/IconSoundMacro.svg")),
+                                  INode::Type::SoundMacro);
+  gn._appendChild<CollectionNode>(tr("ADSRs"), QIcon(QStringLiteral(":/icons/IconADSR.svg")), INode::Type::ADSR);
+  gn._appendChild<CollectionNode>(tr("Curves"), QIcon(QStringLiteral(":/icons/IconCurve.svg")), INode::Type::Curve);
+  gn._appendChild<CollectionNode>(tr("Keymaps"), QIcon(QStringLiteral(":/icons/IconKeymap.svg")), INode::Type::Keymap);
+  gn._appendChild<CollectionNode>(tr("Layers"), QIcon(QStringLiteral(":/icons/IconLayers.svg")), INode::Type::Layer);
+  gn._appendChild<CollectionNode>(tr("Samples"), QIcon(QStringLiteral(":/icons/IconSample.svg")), INode::Type::Sample);
 }
 
 void ProjectModel::_buildGroupNode(GroupNode& gn, amuse::AudioGroup& group) {
@@ -1736,15 +1737,23 @@ QMimeData* ProjectModel::mimeData(const QModelIndexList& indexes) const {
 bool ProjectModel::dropMimeData(const QMimeData* data, Qt::DropAction action, int row, int column,
                                 const QModelIndex& parent) {
   if (data->hasFormat(QStringLiteral("application/x-amuse-subprojectpath"))) {
-    auto path = data->data(QStringLiteral("application/x-amuse-subprojectpath"));
-    QDir oldDir(path);
-    QString newName = MakeDedupedSubprojectName(oldDir.dirName());
+    const auto path = data->data(QStringLiteral("application/x-amuse-subprojectpath"));
+    const QDir oldDir(QString::fromUtf8(path));
+    const QString newName = MakeDedupedSubprojectName(oldDir.dirName());
+
     m_dir.mkdir(newName);
-    QDir newDir(QFileInfo(m_dir, newName).filePath());
-    for (auto ent : oldDir.entryList({"*.wav", "*.dsp", "*.vadpcm", "!pool.yaml", "!project.yaml"}, QDir::Files))
+
+    const QDir newDir(QFileInfo(m_dir, newName).filePath());
+    const auto entryList =
+        oldDir.entryList({QStringLiteral("*.wav"), QStringLiteral("*.dsp"), QStringLiteral("*.vadpcm"),
+                          QStringLiteral("!pool.yaml"), QStringLiteral("!project.yaml")},
+                         QDir::Files);
+    for (const auto& ent : entryList) {
       QFile::copy(QFileInfo(oldDir, ent).filePath(), QFileInfo(newDir, ent).filePath());
+    }
+
     auto dataNode = std::make_unique<amuse::AudioGroupDatabase>(QStringToSysString(newDir.path()));
-    auto node = amuse::MakeObj<GroupNode>(newName);
+    const auto node = amuse::MakeObj<GroupNode>(newName);
     _buildGroupNode(*node, *dataNode);
     g_MainWindow->pushUndoCommand(
         new GroupNodeAddUndoCommand(tr("Add Subproject %1"), std::move(dataNode), node.get()));
@@ -1773,14 +1782,16 @@ bool ProjectModel::dropMimeData(const QMimeData* data, Qt::DropAction action, in
   else if (data->hasFormat(QStringLiteral("application/x-amuse-layers")))
     loadMimeData<LayersNode>(data, QStringLiteral("application/x-amuse-layers"), gn);
   else if (data->hasFormat(QStringLiteral("application/x-amuse-samplepath"))) {
-    auto path = data->data(QStringLiteral("application/x-amuse-samplepath"));
-    QString newName = MakeDedupedName(QFileInfo(path).completeBaseName(), amuse::SampleId::CurNameDB);
-    QString newBasePath = QFileInfo(QFileInfo(m_dir, gn->name()).filePath(), newName).filePath();
-    amuse::SystemString newBasePathStr = QStringToSysString(newBasePath);
+    const auto path = data->data(QStringLiteral("application/x-amuse-samplepath"));
+    const QString newName =
+        MakeDedupedName(QFileInfo(QString::fromUtf8(path)).completeBaseName(), amuse::SampleId::CurNameDB);
+    const QString newBasePath = QFileInfo(QFileInfo(m_dir, gn->name()).filePath(), newName).filePath();
+    const amuse::SystemString newBasePathStr = QStringToSysString(newBasePath);
+
     gn->getAudioGroup()->copySampleInto(QStringToSysString(QString::fromUtf8(path)), newBasePathStr);
     auto dataNode = amuse::MakeObj<amuse::SampleEntry>();
     dataNode->loadLooseData(newBasePathStr);
-    auto node = amuse::MakeObj<SampleNode>(newName, dataNode);
+    const auto node = amuse::MakeObj<SampleNode>(newName, dataNode);
     NameUndoRegistry dummy;
     _addPoolNode(node.get(), gn, dummy, gn->getAudioGroup()->getSdir().sampleEntries());
   } else
@@ -1860,13 +1871,21 @@ QModelIndex ProjectModel::duplicate(const QModelIndex& index) {
   GroupNode* gn = getGroupNode(n);
   switch (n->type()) {
   case INode::Type::Group: {
-    GroupNode* cn = static_cast<GroupNode*>(n);
+    auto* const cn = static_cast<GroupNode*>(n);
     newName = MakeDedupedSubprojectName(n->name());
+
     m_dir.mkdir(newName);
-    QDir oldDir(QFileInfo(m_dir, n->name()).filePath());
-    QDir newDir(QFileInfo(m_dir, newName).filePath());
-    for (auto ent : oldDir.entryList({"*.wav", "*.dsp", "*.vadpcm", "!pool.yaml"}, QDir::Files))
+
+    const QDir oldDir(QFileInfo(m_dir, n->name()).filePath());
+    const QDir newDir(QFileInfo(m_dir, newName).filePath());
+    const auto entryList = oldDir.entryList(
+        {QStringLiteral("*.wav"), QStringLiteral("*.dsp"), QStringLiteral("*.vadpcm"), QStringLiteral("!pool.yaml")},
+        QDir::Files);
+
+    for (const auto& ent : entryList) {
       QFile::copy(QFileInfo(oldDir, ent).filePath(), QFileInfo(newDir, ent).filePath());
+    }
+
     auto data = std::make_unique<amuse::AudioGroupDatabase>(*cn->getAudioGroup(), QStringToSysString(newDir.path()));
     auto node = amuse::MakeObj<GroupNode>(newName);
     _buildGroupNode(*node, *data);
diff --git a/Editor/ProjectModel.hpp b/Editor/ProjectModel.hpp
index 8c006a7..952339a 100644
--- a/Editor/ProjectModel.hpp
+++ b/Editor/ProjectModel.hpp
@@ -259,7 +259,7 @@ public:
     amuse::ObjToken<amuse::SongGroupIndex> m_index;
     SongGroupNode(const QString& name, amuse::ObjToken<amuse::SongGroupIndex> index) : INode(name), m_index(index) {}
     SongGroupNode(amuse::GroupId id, amuse::ObjToken<amuse::SongGroupIndex> index)
-    : INode(amuse::GroupId::CurNameDB->resolveNameFromId(id).data()), m_id(id), m_index(index) {}
+    : INode(QString::fromUtf8(amuse::GroupId::CurNameDB->resolveNameFromId(id).data())), m_id(id), m_index(index) {}
 
     static QIcon Icon;
     Type type() const override { return Type::SongGroup; }
@@ -285,7 +285,7 @@ public:
     amuse::ObjToken<amuse::SFXGroupIndex> m_index;
     SoundGroupNode(const QString& name, amuse::ObjToken<amuse::SFXGroupIndex> index) : INode(name), m_index(index) {}
     SoundGroupNode(amuse::GroupId id, amuse::ObjToken<amuse::SFXGroupIndex> index)
-    : INode(amuse::GroupId::CurNameDB->resolveNameFromId(id).data()), m_id(id), m_index(index) {}
+    : INode(QString::fromUtf8(amuse::GroupId::CurNameDB->resolveNameFromId(id).data())), m_id(id), m_index(index) {}
 
     static QIcon Icon;
     Type type() const override { return Type::SoundGroup; }
@@ -336,7 +336,7 @@ public:
     amuse::ObjToken<T> m_obj;
     PoolObjectNode(const QString& name, amuse::ObjToken<T> obj) : BasePoolObjectNode(name), m_obj(obj) {}
     PoolObjectNode(ID id, amuse::ObjToken<T> obj)
-    : BasePoolObjectNode(id, ID::CurNameDB->resolveNameFromId(id).data()), m_obj(obj) {}
+    : BasePoolObjectNode(id, QString::fromUtf8(ID::CurNameDB->resolveNameFromId(id).data())), m_obj(obj) {}
 
     Type type() const override { return TP; }
     AmuseItemEditFlags editFlags() const override { return TP == INode::Type::Sample ? AmuseItemNoCut : AmuseItemAll; }
diff --git a/Editor/SongGroupEditor.cpp b/Editor/SongGroupEditor.cpp
index 493e3e4..5bc971e 100644
--- a/Editor/SongGroupEditor.cpp
+++ b/Editor/SongGroupEditor.cpp
@@ -839,7 +839,7 @@ QVariant SetupListModel::data(const QModelIndex& index, int role) const {
       if (role == Qt::ForegroundRole)
         return QVariant();
       g_MainWindow->projectModel()->setIdDatabases(m_node.get());
-      return amuse::SongId::CurNameDB->resolveNameFromId(entry->first.id).data();
+      return QString::fromUtf8(amuse::SongId::CurNameDB->resolveNameFromId(entry->first.id).data());
     } else if (index.column() == 1) {
       QString songPath = g_MainWindow->projectModel()->getMIDIPathOfSong(entry.m_it->first);
       if (songPath.isEmpty()) {
diff --git a/Editor/SoundGroupEditor.cpp b/Editor/SoundGroupEditor.cpp
index 0ef8c41..72de4cb 100644
--- a/Editor/SoundGroupEditor.cpp
+++ b/Editor/SoundGroupEditor.cpp
@@ -232,7 +232,7 @@ QVariant SFXModel::data(const QModelIndex& index, int role) const {
     switch (index.column()) {
     case 0: {
       g_MainWindow->projectModel()->setIdDatabases(m_node.get());
-      return amuse::SFXId::CurNameDB->resolveNameFromId(entry->first.id).data();
+      return QString::fromUtf8(amuse::SFXId::CurNameDB->resolveNameFromId(entry->first.id).data());
     }
     case 1: {
       ProjectModel::GroupNode* group = g_MainWindow->projectModel()->getGroupNode(m_node.get());
diff --git a/Editor/main.cpp b/Editor/main.cpp
index a84991c..b111a9e 100644
--- a/Editor/main.cpp
+++ b/Editor/main.cpp
@@ -60,12 +60,12 @@ int main(int argc, char* argv[]) {
   QApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
   QApplication::setAttribute(Qt::AA_UseHighDpiPixmaps);
 #endif
-  QApplication::setStyle(new ColoredTabBarStyle(QStyleFactory::create("Fusion")));
+  QApplication::setStyle(new ColoredTabBarStyle(QStyleFactory::create(QStringLiteral("Fusion"))));
   QApplication a(argc, argv);
   QApplication::setWindowIcon(MakeAppIcon());
 
-  a.setOrganizationName("AxioDL");
-  a.setApplicationName("Amuse");
+  a.setOrganizationName(QStringLiteral("AxioDL"));
+  a.setApplicationName(QStringLiteral("Amuse"));
 
   QPalette darkPalette;
   darkPalette.setColor(QPalette::Window, QColor(53, 53, 53));
@@ -102,8 +102,9 @@ int main(int argc, char* argv[]) {
 
   Q_INIT_RESOURCE(translation_res);
   QTranslator translator;
-  if (translator.load(QLocale(), QLatin1String("lang"), QLatin1String("_"), QLatin1String(":/translations")))
+  if (translator.load(QLocale(), QStringLiteral("lang"), QStringLiteral("_"), QStringLiteral(":/translations"))) {
     a.installTranslator(&translator);
+  }
 
   MainWindow w;
   g_MainWindow = &w;