diff --git a/src/app/upgrade.h b/src/app/upgrade.h
index 376b63164..f9b69140a 100644
--- a/src/app/upgrade.h
+++ b/src/app/upgrade.h
@@ -119,7 +119,7 @@ bool upgradeResumeFile(const QString &filepath, const QVariantHash &oldTorrent =
     }
     else {
         queuePosition = fastOld.dict_find_int_value("qBt-queuePosition", 0);
-        fastNew["qBt-name"] = Utils::String::toStdString(oldTorrent.value("name").toString());
+        fastNew["qBt-name"] = oldTorrent.value("name").toString().toStdString();
         fastNew["qBt-tempPathDisabled"] = false;
     }
 
@@ -192,14 +192,14 @@ bool upgrade(bool ask = true)
         QVariantHash oldTorrent = oldResumeData[hash].toHash();
         if (oldTorrent.value("is_magnet", false).toBool()) {
             libtorrent::entry resumeData;
-            resumeData["qBt-magnetUri"] = Utils::String::toStdString(oldTorrent.value("magnet_uri").toString());
+            resumeData["qBt-magnetUri"] = oldTorrent.value("magnet_uri").toString().toStdString();
             resumeData["qBt-paused"] = false;
             resumeData["qBt-forced"] = false;
 
-            resumeData["qBt-savePath"] = Utils::String::toStdString(oldTorrent.value("save_path").toString());
-            resumeData["qBt-ratioLimit"] = Utils::String::toStdString(QString::number(oldTorrent.value("max_ratio", -2).toReal()));
-            resumeData["qBt-label"] = Utils::String::toStdString(oldTorrent.value("label").toString());
-            resumeData["qBt-name"] = Utils::String::toStdString(oldTorrent.value("name").toString());
+            resumeData["qBt-savePath"] = oldTorrent.value("save_path").toString().toStdString();
+            resumeData["qBt-ratioLimit"] = QString::number(oldTorrent.value("max_ratio", -2).toReal()).toStdString();
+            resumeData["qBt-label"] = oldTorrent.value("label").toString().toStdString();
+            resumeData["qBt-name"] = oldTorrent.value("name").toString().toStdString();
             resumeData["qBt-seedStatus"] = oldTorrent.value("seed").toBool();
             resumeData["qBt-tempPathDisabled"] = false;
 
diff --git a/src/base/bittorrent/session.cpp b/src/base/bittorrent/session.cpp
index e6b6fcd37..43dc66fe5 100644
--- a/src/base/bittorrent/session.cpp
+++ b/src/base/bittorrent/session.cpp
@@ -976,11 +976,11 @@ void Session::configure(libtorrent::settings_pack &settingsPack)
     Net::ProxyConfiguration proxyConfig = proxyManager->proxyConfiguration();
     if (m_useProxy || (proxyConfig.type != Net::ProxyType::None)) {
         if (proxyConfig.type != Net::ProxyType::None) {
-            settingsPack.set_str(libt::settings_pack::proxy_hostname, Utils::String::toStdString(proxyConfig.ip));
+            settingsPack.set_str(libt::settings_pack::proxy_hostname, proxyConfig.ip.toStdString());
             settingsPack.set_int(libt::settings_pack::proxy_port, proxyConfig.port);
             if (proxyManager->isAuthenticationRequired()) {
-                settingsPack.set_str(libt::settings_pack::proxy_username, Utils::String::toStdString(proxyConfig.username));
-                settingsPack.set_str(libt::settings_pack::proxy_password, Utils::String::toStdString(proxyConfig.password));
+                settingsPack.set_str(libt::settings_pack::proxy_username, proxyConfig.username.toStdString());
+                settingsPack.set_str(libt::settings_pack::proxy_password, proxyConfig.password.toStdString());
             }
             settingsPack.set_bool(libt::settings_pack::proxy_peer_connections, isProxyPeerConnectionsEnabled());
         }
@@ -1055,7 +1055,7 @@ void Session::configure(libtorrent::settings_pack &settingsPack)
     // Include overhead in transfer limits
     settingsPack.set_bool(libt::settings_pack::rate_limit_ip_overhead, includeOverheadInLimits());
     // IP address to announce to trackers
-    settingsPack.set_str(libt::settings_pack::announce_ip, Utils::String::toStdString(announceIP()));
+    settingsPack.set_str(libt::settings_pack::announce_ip, announceIP().toStdString());
     // Super seeding
     settingsPack.set_bool(libt::settings_pack::strict_super_seeding, isSuperSeedingEnabled());
     // * Max Half-open connections
@@ -1123,11 +1123,11 @@ void Session::configure(libtorrent::session_settings &sessionSettings)
     if (m_useProxy || (proxyConfig.type != Net::ProxyType::None)) {
         libt::proxy_settings proxySettings;
         if (proxyConfig.type != Net::ProxyType::None) {
-            proxySettings.hostname = Utils::String::toStdString(proxyConfig.ip);
+            proxySettings.hostname = proxyConfig.ip.toStdString();
             proxySettings.port = proxyConfig.port;
             if (proxyManager->isAuthenticationRequired()) {
-                proxySettings.username = Utils::String::toStdString(proxyConfig.username);
-                proxySettings.password = Utils::String::toStdString(proxyConfig.password);
+                proxySettings.username = proxyConfig.username.toStdString();
+                proxySettings.password = proxyConfig.password.toStdString();
             }
             proxySettings.proxy_peer_connections = isProxyPeerConnectionsEnabled();
         }
@@ -1200,7 +1200,7 @@ void Session::configure(libtorrent::session_settings &sessionSettings)
     // Include overhead in transfer limits
     sessionSettings.rate_limit_ip_overhead = includeOverheadInLimits();
     // IP address to announce to trackers
-    sessionSettings.announce_ip = Utils::String::toStdString(announceIP());
+    sessionSettings.announce_ip = announceIP().toStdString();
     // Super seeding
     sessionSettings.strict_super_seeding = isSuperSeedingEnabled();
     // * Max Half-open connections
@@ -1699,7 +1699,7 @@ bool Session::addTorrent_impl(AddTorrentData addData, const MagnetUri &magnetUri
     // Limits
     p.max_connections = maxConnectionsPerTorrent();
     p.max_uploads = maxUploadsPerTorrent();
-    p.save_path = Utils::String::toStdString(Utils::Fs::toNativePath(savePath));
+    p.save_path = Utils::Fs::toNativePath(savePath).toStdString();
 
     m_addingTorrents.insert(hash, addData);
     // Adding torrent to BitTorrent session
@@ -1787,7 +1787,7 @@ bool Session::loadMetadata(const MagnetUri &magnetUri)
     p.max_uploads = maxUploadsPerTorrent();
 
     QString savePath = QString("%1/%2").arg(QDir::tempPath()).arg(hash);
-    p.save_path = Utils::String::toStdString(Utils::Fs::toNativePath(savePath));
+    p.save_path = Utils::Fs::toNativePath(savePath).toStdString();
 
     // Forced start
     p.flags &= ~libt::add_torrent_params::flag_paused;
diff --git a/src/base/bittorrent/torrentcreatorthread.cpp b/src/base/bittorrent/torrentcreatorthread.cpp
index 2669c5af1..271f533ca 100644
--- a/src/base/bittorrent/torrentcreatorthread.cpp
+++ b/src/base/bittorrent/torrentcreatorthread.cpp
@@ -107,14 +107,14 @@ void TorrentCreatorThread::run()
     try {
         libt::file_storage fs;
         // Adding files to the torrent
-        libt::add_files(fs, Utils::String::toStdString(Utils::Fs::toNativePath(m_inputPath)), fileFilter);
+        libt::add_files(fs, Utils::Fs::toNativePath(m_inputPath).toStdString(), fileFilter);
         if (m_abort) return;
 
         libt::create_torrent t(fs, m_pieceSize);
 
         // Add url seeds
         foreach (const QString &seed, m_urlSeeds)
-            t.add_url_seed(Utils::String::toStdString(seed.trimmed()));
+            t.add_url_seed(seed.trimmed().toStdString());
 
         int tier = 0;
         bool newline = false;
@@ -126,14 +126,14 @@ void TorrentCreatorThread::run()
                 newline = true;
                 continue;
             }
-            t.add_tracker(Utils::String::toStdString(tracker.trimmed()), tier);
+            t.add_tracker(tracker.trimmed().toStdString(), tier);
             newline = false;
         }
         if (m_abort) return;
 
         // calculate the hash for all pieces
         const QString parentPath = Utils::Fs::branchPath(m_inputPath) + "/";
-        libt::set_piece_hashes(t, Utils::String::toStdString(Utils::Fs::toNativePath(parentPath)), boost::bind(&TorrentCreatorThread::sendProgressSignal, this, _1, t.num_pieces()));
+        libt::set_piece_hashes(t, Utils::Fs::toNativePath(parentPath).toStdString(), boost::bind(&TorrentCreatorThread::sendProgressSignal, this, _1, t.num_pieces()));
         // Set qBittorrent as creator and add user comment to
         // torrent_info structure
         t.set_creator(creator_str.toUtf8().constData());
diff --git a/src/base/bittorrent/torrenthandle.cpp b/src/base/bittorrent/torrenthandle.cpp
index 3701e48bf..d953cf268 100644
--- a/src/base/bittorrent/torrenthandle.cpp
+++ b/src/base/bittorrent/torrenthandle.cpp
@@ -484,7 +484,7 @@ bool TorrentHandle::addUrlSeed(const QUrl &urlSeed)
     QList<QUrl> seeds = urlSeeds();
     if (seeds.contains(urlSeed)) return false;
 
-    SAFE_CALL_BOOL(add_url_seed, Utils::String::toStdString(urlSeed.toString()));
+    SAFE_CALL_BOOL(add_url_seed, urlSeed.toString().toStdString());
 }
 
 bool TorrentHandle::removeUrlSeed(const QUrl &urlSeed)
@@ -492,13 +492,13 @@ bool TorrentHandle::removeUrlSeed(const QUrl &urlSeed)
     QList<QUrl> seeds = urlSeeds();
     if (!seeds.contains(urlSeed)) return false;
 
-    SAFE_CALL_BOOL(remove_url_seed, Utils::String::toStdString(urlSeed.toString()));
+    SAFE_CALL_BOOL(remove_url_seed, urlSeed.toString().toStdString());
 }
 
 bool TorrentHandle::connectPeer(const PeerAddress &peerAddress)
 {
     libt::error_code ec;
-    libt::address addr = libt::address::from_string(Utils::String::toStdString(peerAddress.ip.toString()), ec);
+    libt::address addr = libt::address::from_string(peerAddress.ip.toString().toStdString(), ec);
     if (ec) return false;
 
     boost::asio::ip::tcp::endpoint ep(addr, peerAddress.port);
@@ -1338,7 +1338,7 @@ void TorrentHandle::renameFile(int index, const QString &name)
 {
     ++m_renameCount;
     qDebug() << Q_FUNC_INFO << index << name;
-    SAFE_CALL(rename_file, index, Utils::String::toStdString(Utils::Fs::toNativePath(name)));
+    SAFE_CALL(rename_file, index, Utils::Fs::toNativePath(name).toStdString());
 }
 
 bool TorrentHandle::saveTorrentFile(const QString &path)
@@ -1530,14 +1530,14 @@ void TorrentHandle::handleSaveResumeDataAlert(libtorrent::save_resume_data_alert
 
     libtorrent::entry &resumeData = useDummyResumeData ? dummyEntry : *(p->resume_data);
     if (useDummyResumeData) {
-        resumeData["qBt-magnetUri"] = Utils::String::toStdString(toMagnetUri());
+        resumeData["qBt-magnetUri"] = toMagnetUri().toStdString();
         resumeData["qBt-paused"] = isPaused();
         resumeData["qBt-forced"] = isForced();
     }
-    resumeData["qBt-savePath"] = m_useAutoTMM ? "" : Utils::String::toStdString(m_savePath);
-    resumeData["qBt-ratioLimit"] = Utils::String::toStdString(QString::number(m_ratioLimit));
-    resumeData["qBt-category"] = Utils::String::toStdString(m_category);
-    resumeData["qBt-name"] = Utils::String::toStdString(m_name);
+    resumeData["qBt-savePath"] = m_useAutoTMM ? "" : m_savePath.toStdString();
+    resumeData["qBt-ratioLimit"] = QString::number(m_ratioLimit).toStdString();
+    resumeData["qBt-category"] = m_category.toStdString();
+    resumeData["qBt-name"] = m_name.toStdString();
     resumeData["qBt-seedStatus"] = m_hasSeedStatus;
     resumeData["qBt-tempPathDisabled"] = m_tempPathDisabled;
     resumeData["qBt-queuePosition"] = queuePosition();
diff --git a/src/base/bittorrent/torrentinfo.cpp b/src/base/bittorrent/torrentinfo.cpp
index f06be60f7..a73fb9abb 100644
--- a/src/base/bittorrent/torrentinfo.cpp
+++ b/src/base/bittorrent/torrentinfo.cpp
@@ -64,7 +64,7 @@ TorrentInfo TorrentInfo::loadFromFile(const QString &path, QString &error)
 {
     error.clear();
     libt::error_code ec;
-    TorrentInfo info(NativePtr(new libt::torrent_info(Utils::String::toStdString(Utils::Fs::toNativePath(path)), ec)));
+    TorrentInfo info(NativePtr(new libt::torrent_info(Utils::Fs::toNativePath(path).toStdString(), ec)));
     if (ec) {
         error = QString::fromUtf8(ec.message().c_str());
         qDebug("Cannot load .torrent file: %s", qPrintable(error));
@@ -279,7 +279,7 @@ TorrentInfo::PieceRange TorrentInfo::filePieces(int fileIndex) const
 void TorrentInfo::renameFile(uint index, const QString &newPath)
 {
     if (!isValid()) return;
-    nativeInfo()->rename_file(index, Utils::String::toStdString(newPath));
+    nativeInfo()->rename_file(index, newPath.toStdString());
 }
 
 int BitTorrent::TorrentInfo::fileIndex(const QString& fileName) const
diff --git a/src/base/bittorrent/tracker.cpp b/src/base/bittorrent/tracker.cpp
index 7044d65e5..88a464582 100644
--- a/src/base/bittorrent/tracker.cpp
+++ b/src/base/bittorrent/tracker.cpp
@@ -65,8 +65,8 @@ libtorrent::entry Peer::toEntry(bool noPeerId) const
 {
     libtorrent::entry::dictionary_type peerMap;
     if (!noPeerId)
-        peerMap["id"] = libtorrent::entry(Utils::String::toStdString(peerId));
-    peerMap["ip"] = libtorrent::entry(Utils::String::toStdString(ip));
+        peerMap["id"] = libtorrent::entry(peerId.toStdString());
+    peerMap["ip"] = libtorrent::entry(ip.toStdString());
     peerMap["port"] = libtorrent::entry(port);
 
     return libtorrent::entry(peerMap);
diff --git a/src/base/bittorrent/trackerentry.cpp b/src/base/bittorrent/trackerentry.cpp
index e944963a8..6d0c71a6e 100644
--- a/src/base/bittorrent/trackerentry.cpp
+++ b/src/base/bittorrent/trackerentry.cpp
@@ -35,7 +35,7 @@
 using namespace BitTorrent;
 
 TrackerEntry::TrackerEntry(const QString &url)
-    : m_nativeEntry(libtorrent::announce_entry(Utils::String::toStdString(url)))
+    : m_nativeEntry(libtorrent::announce_entry(url.toStdString()))
 {
 }
 
diff --git a/src/base/utils/string.cpp b/src/base/utils/string.cpp
index 733ae3425..52bd7d2c0 100644
--- a/src/base/utils/string.cpp
+++ b/src/base/utils/string.cpp
@@ -157,11 +157,6 @@ QString Utils::String::fromStdString(const std::string &str)
     return QString::fromUtf8(str.c_str());
 }
 
-std::string Utils::String::toStdString(const QString &str)
-{
-    return str.toStdString();
-}
-
 // to send numbers instead of strings with suffixes
 QString Utils::String::fromDouble(double n, int precision)
 {
diff --git a/src/base/utils/string.h b/src/base/utils/string.h
index 52f4863ef..17c52f6d7 100644
--- a/src/base/utils/string.h
+++ b/src/base/utils/string.h
@@ -40,7 +40,6 @@ namespace Utils
     namespace String
     {
         QString fromStdString(const std::string &str);
-        std::string toStdString(const QString &str);
         QString fromDouble(double n, int precision);
 
         // Implements constant-time comparison to protect against timing attacks