diff --git a/src/citra_qt/multiplayer/chat_room.cpp b/src/citra_qt/multiplayer/chat_room.cpp
index 760588248..9e80d5abf 100644
--- a/src/citra_qt/multiplayer/chat_room.cpp
+++ b/src/citra_qt/multiplayer/chat_room.cpp
@@ -44,10 +44,10 @@ public:
         }
 
         // Handle pings at the beginning and end of message
-        QString fixed_message = QString(" %1 ").arg(message);
-        if (fixed_message.contains(QString(" @%1 ").arg(cur_nickname)) ||
+        QString fixed_message = QStringLiteral(" %1 ").arg(message);
+        if (fixed_message.contains(QStringLiteral(" @%1 ").arg(cur_nickname)) ||
             (!cur_username.isEmpty() &&
-             fixed_message.contains(QString(" @%1 ").arg(cur_username)))) {
+             fixed_message.contains(QStringLiteral(" @%1 ").arg(cur_username)))) {
 
             contains_ping = true;
         } else {
@@ -66,20 +66,20 @@ public:
         if (username.isEmpty() || username == nickname) {
             name = nickname;
         } else {
-            name = QString("%1 (%2)").arg(nickname, username);
+            name = QStringLiteral("%1 (%2)").arg(nickname, username);
         }
 
         QString style, text_color;
         if (ContainsPing()) {
             // Add a background color to these messages
-            style = QString("background-color: %1").arg(ping_color);
+            style = QStringLiteral("background-color: %1").arg(QString::fromStdString(ping_color));
             // Add a font color
-            text_color = "color='#000000'";
+            text_color = QStringLiteral("color='#000000'");
         }
 
-        return QString("[%1] <font color='%2'>&lt;%3&gt;</font> <font style='%4' "
-                       "%5>%6</font>")
-            .arg(timestamp, color, name.toHtmlEscaped(), style, text_color,
+        return QStringLiteral("[%1] <font color='%2'>&lt;%3&gt;</font> <font style='%4' "
+                              "%5>%6</font>")
+            .arg(timestamp, QString::fromStdString(color), name.toHtmlEscaped(), style, text_color,
                  message.toHtmlEscaped());
     }
 
@@ -106,7 +106,8 @@ public:
     }
 
     QString GetSystemChatMessage() const {
-        return QString("[%1] <font color='%2'>* %3</font>").arg(timestamp, system_color, message);
+        return QStringLiteral("[%1] <font color='%2'>* %3</font>")
+            .arg(timestamp, QString::fromStdString(system_color), message);
     }
 
 private:
@@ -146,9 +147,9 @@ public:
         if (username.isEmpty() || username == nickname) {
             name = nickname;
         } else {
-            name = QString("%1 (%2)").arg(nickname, username);
+            name = QStringLiteral("%1 (%2)").arg(nickname, username);
         }
-        return QString("%1\n      %2").arg(name, data(GameNameRole).toString());
+        return QStringLiteral("%1\n      %2").arg(name, data(GameNameRole).toString());
     }
 };
 
@@ -288,8 +289,8 @@ void ChatRoom::OnStatusMessageReceive(const Network::StatusMessageEntry& status_
     if (status_message.username.empty() || status_message.username == status_message.nickname) {
         name = QString::fromStdString(status_message.nickname);
     } else {
-        name = QString("%1 (%2)").arg(QString::fromStdString(status_message.nickname),
-                                      QString::fromStdString(status_message.username));
+        name = QStringLiteral("%1 (%2)").arg(QString::fromStdString(status_message.nickname),
+                                             QString::fromStdString(status_message.username));
     }
     QString message;
     switch (status_message.type) {
@@ -353,7 +354,8 @@ void ChatRoom::UpdateIconDisplay() {
         if (icon_cache.count(avatar_url)) {
             item->setData(icon_cache.at(avatar_url), Qt::DecorationRole);
         } else {
-            item->setData(QIcon::fromTheme("no_avatar").pixmap(48), Qt::DecorationRole);
+            item->setData(QIcon::fromTheme(QStringLiteral("no_avatar")).pixmap(48),
+                          Qt::DecorationRole);
         }
     }
 }
@@ -373,7 +375,7 @@ void ChatRoom::SetPlayerList(const Network::RoomMember::MemberList& member_list)
             const QUrl url(QString::fromStdString(member.avatar_url));
             QFuture<std::string> future = QtConcurrent::run([url] {
                 WebService::Client client(
-                    QString("%1://%2").arg(url.scheme(), url.host()).toStdString(), "", "");
+                    QStringLiteral("%1://%2").arg(url.scheme(), url.host()).toStdString(), "", "");
                 auto result = client.GetImage(url.path().toStdString(), true);
                 if (result.returned_data.empty()) {
                     LOG_ERROR(WebService, "Failed to get avatar");
@@ -426,7 +428,7 @@ void ChatRoom::PopupContextMenu(const QPoint& menu_location) {
         QAction* view_profile_action = context_menu.addAction(tr("View Profile"));
         connect(view_profile_action, &QAction::triggered, [username] {
             QDesktopServices::openUrl(
-                QUrl(QString("https://community.citra-emu.org/u/%1").arg(username)));
+                QUrl(QStringLiteral("https://community.citra-emu.org/u/%1").arg(username)));
         });
     }
 
diff --git a/src/citra_qt/multiplayer/lobby.cpp b/src/citra_qt/multiplayer/lobby.cpp
index 06ba2e6f6..9e00f267b 100644
--- a/src/citra_qt/multiplayer/lobby.cpp
+++ b/src/citra_qt/multiplayer/lobby.cpp
@@ -99,8 +99,9 @@ void Lobby::RetranslateUi() {
 
 QString Lobby::PasswordPrompt() {
     bool ok;
-    const QString text = QInputDialog::getText(this, tr("Password Required to Join"),
-                                               tr("Password:"), QLineEdit::Password, "", &ok);
+    const QString text =
+        QInputDialog::getText(this, tr("Password Required to Join"), tr("Password:"),
+                              QLineEdit::Password, QString(), &ok);
     return ok ? text : QString();
 }
 
@@ -181,7 +182,7 @@ void Lobby::OnJoinRoom(const QModelIndex& source) {
 void Lobby::ResetModel() {
     model->clear();
     model->insertColumns(0, Column::TOTAL);
-    model->setHeaderData(Column::EXPAND, Qt::Horizontal, "", Qt::DisplayRole);
+    model->setHeaderData(Column::EXPAND, Qt::Horizontal, QString(), Qt::DisplayRole);
     model->setHeaderData(Column::ROOM_NAME, Qt::Horizontal, tr("Room Name"), Qt::DisplayRole);
     model->setHeaderData(Column::GAME_NAME, Qt::Horizontal, tr("Preferred Game"), Qt::DisplayRole);
     model->setHeaderData(Column::HOST, Qt::Horizontal, tr("Host"), Qt::DisplayRole);
diff --git a/src/citra_qt/multiplayer/lobby_p.h b/src/citra_qt/multiplayer/lobby_p.h
index e684fc816..749ca627f 100644
--- a/src/citra_qt/multiplayer/lobby_p.h
+++ b/src/citra_qt/multiplayer/lobby_p.h
@@ -42,7 +42,7 @@ public:
     QVariant data(int role) const override {
         if (role == Qt::DecorationRole) {
             bool has_password = data(PasswordRole).toBool();
-            return has_password ? QIcon::fromTheme("lock").pixmap(16) : QIcon();
+            return has_password ? QIcon::fromTheme(QStringLiteral("lock")).pixmap(16) : QIcon();
         }
         if (role != Qt::DisplayRole) {
             return LobbyItem::data(role);
@@ -69,7 +69,7 @@ public:
             return LobbyItem::data(role);
         }
         auto description = data(DescriptionRole).toString();
-        description.prepend("Description: ");
+        description.prepend(QStringLiteral("Description: "));
         return description;
     }
 
@@ -157,7 +157,7 @@ public:
         if (username.isEmpty() || username == nickname) {
             return nickname;
         } else {
-            return QString("%1 (%2)").arg(nickname, username);
+            return QStringLiteral("%1 (%2)").arg(nickname, username);
         }
     }
     u64 GetTitleId() const {
@@ -192,8 +192,8 @@ public:
             return LobbyItem::data(role);
         }
         auto members = data(MemberListRole).toList();
-        return QString("%1 / %2").arg(QString::number(members.size()),
-                                      data(MaxPlayerRole).toString());
+        return QStringLiteral("%1 / %2").arg(QString::number(members.size()),
+                                             data(MaxPlayerRole).toString());
     }
 
     bool operator<(const QStandardItem& other) const override {
@@ -225,7 +225,7 @@ public:
         bool first = true;
         for (const auto& member : members) {
             if (!first)
-                out += '\n';
+                out.append(QStringLiteral("\n"));
             const auto& m = member.value<LobbyMember>();
             if (m.GetGameName().isEmpty()) {
                 out += QString(QObject::tr("%1 is not playing a game")).arg(m.GetName());
diff --git a/src/citra_qt/multiplayer/state.cpp b/src/citra_qt/multiplayer/state.cpp
index caef77efc..591434c5e 100644
--- a/src/citra_qt/multiplayer/state.cpp
+++ b/src/citra_qt/multiplayer/state.cpp
@@ -46,7 +46,7 @@ MultiplayerState::MultiplayerState(QWidget* parent, QStandardItemModel* game_lis
     status_icon = new ClickableLabel(this);
     status_text->setToolTip(tr("Current connection status"));
     status_text->setText(tr("Not Connected. Click here to find a room!"));
-    status_icon->setPixmap(QIcon::fromTheme("disconnected").pixmap(16));
+    status_icon->setPixmap(QIcon::fromTheme(QStringLiteral("disconnected")).pixmap(16));
 
     connect(status_text, &ClickableLabel::clicked, this, &MultiplayerState::OnOpenNetworkRoom);
     connect(status_icon, &ClickableLabel::clicked, this, &MultiplayerState::OnOpenNetworkRoom);
@@ -113,12 +113,12 @@ void MultiplayerState::OnNetworkStateChanged(const Network::RoomMember::State& s
         state == Network::RoomMember::State::Moderator) {
 
         OnOpenNetworkRoom();
-        status_icon->setPixmap(QIcon::fromTheme("connected").pixmap(16));
+        status_icon->setPixmap(QIcon::fromTheme(QStringLiteral("connected")).pixmap(16));
         status_text->setText(tr("Connected"));
         leave_room->setEnabled(true);
         show_room->setEnabled(true);
     } else {
-        status_icon->setPixmap(QIcon::fromTheme("disconnected").pixmap(16));
+        status_icon->setPixmap(QIcon::fromTheme(QStringLiteral("disconnected")).pixmap(16));
         status_text->setText(tr("Not Connected"));
         leave_room->setEnabled(false);
         show_room->setEnabled(false);
@@ -183,13 +183,14 @@ void MultiplayerState::OnAnnounceFailed(const Common::WebResult& result) {
 
 void MultiplayerState::UpdateThemedIcons() {
     if (show_notification) {
-        status_icon->setPixmap(QIcon::fromTheme("connected_notification").pixmap(16));
+        status_icon->setPixmap(
+            QIcon::fromTheme(QStringLiteral("connected_notification")).pixmap(16));
     } else if (current_state == Network::RoomMember::State::Joined ||
                current_state == Network::RoomMember::State::Moderator) {
 
-        status_icon->setPixmap(QIcon::fromTheme("connected").pixmap(16));
+        status_icon->setPixmap(QIcon::fromTheme(QStringLiteral("connected")).pixmap(16));
     } else {
-        status_icon->setPixmap(QIcon::fromTheme("disconnected").pixmap(16));
+        status_icon->setPixmap(QIcon::fromTheme(QStringLiteral("disconnected")).pixmap(16));
     }
     if (client_room)
         client_room->UpdateIconDisplay();
@@ -245,13 +246,13 @@ void MultiplayerState::ShowNotification() {
         return; // Do not show notification if the chat window currently has focus
     show_notification = true;
     QApplication::alert(nullptr);
-    status_icon->setPixmap(QIcon::fromTheme("connected_notification").pixmap(16));
+    status_icon->setPixmap(QIcon::fromTheme(QStringLiteral("connected_notification")).pixmap(16));
     status_text->setText(tr("New Messages Received"));
 }
 
 void MultiplayerState::HideNotification() {
     show_notification = false;
-    status_icon->setPixmap(QIcon::fromTheme("connected").pixmap(16));
+    status_icon->setPixmap(QIcon::fromTheme(QStringLiteral("connected")).pixmap(16));
     status_text->setText(tr("Connected"));
 }
 
diff --git a/src/citra_qt/multiplayer/validation.h b/src/citra_qt/multiplayer/validation.h
index 158ac52cb..1c215a190 100644
--- a/src/citra_qt/multiplayer/validation.h
+++ b/src/citra_qt/multiplayer/validation.h
@@ -5,6 +5,7 @@
 #pragma once
 
 #include <QRegExp>
+#include <QString>
 #include <QValidator>
 
 class Validation {
@@ -29,18 +30,18 @@ public:
 
 private:
     /// room name can be alphanumeric and " " "_" "." and "-" and must have a size of 4-20
-    QRegExp room_name_regex = QRegExp("^[a-zA-Z0-9._- ]{4,20}$");
+    QRegExp room_name_regex = QRegExp(QStringLiteral("^[a-zA-Z0-9._- ]{4,20}$"));
     QRegExpValidator room_name;
 
     /// nickname can be alphanumeric and " " "_" "." and "-" and must have a size of 4-20
-    QRegExp nickname_regex = QRegExp("^[a-zA-Z0-9._- ]{4,20}$");
+    QRegExp nickname_regex = QRegExp(QStringLiteral("^[a-zA-Z0-9._- ]{4,20}$"));
     QRegExpValidator nickname;
 
     /// ipv4 address only
     // TODO remove this when we support hostnames in direct connect
-    QRegExp ip_regex = QRegExp(
+    QRegExp ip_regex = QRegExp(QStringLiteral(
         "(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|"
-        "2[0-4][0-9]|25[0-5])");
+        "2[0-4][0-9]|25[0-5])"));
     QRegExpValidator ip;
 
     /// port must be between 0 and 65535