diff --git a/Source/Core/Common/IniFile.cpp b/Source/Core/Common/IniFile.cpp
index 85fd180cd5..43bbe7b50b 100644
--- a/Source/Core/Common/IniFile.cpp
+++ b/Source/Core/Common/IniFile.cpp
@@ -265,7 +265,7 @@ bool IniFile::Load(const std::string& filename, bool keep_current_data)
     }
 #endif
 
-    if (line.size() > 0)
+    if (!line.empty())
     {
       if (line[0] == '[')
       {
@@ -288,8 +288,8 @@ bool IniFile::Load(const std::string& filename, bool keep_current_data)
           // Lines starting with '$', '*' or '+' are kept verbatim.
           // Kind of a hack, but the support for raw lines inside an
           // INI is a hack anyway.
-          if ((key == "" && value == "") ||
-              (line.size() >= 1 && (line[0] == '$' || line[0] == '+' || line[0] == '*')))
+          if ((key.empty() && value.empty()) ||
+              (!line.empty() && (line[0] == '$' || line[0] == '+' || line[0] == '*')))
             current_section->m_lines.push_back(line);
           else
             current_section->Set(key, value);
@@ -315,10 +315,10 @@ bool IniFile::Save(const std::string& filename)
 
   for (const Section& section : sections)
   {
-    if (section.keys_order.size() != 0 || section.m_lines.size() != 0)
+    if (!section.keys_order.empty() || !section.m_lines.empty())
       out << '[' << section.name << ']' << std::endl;
 
-    if (section.keys_order.size() == 0)
+    if (section.keys_order.empty())
     {
       for (const std::string& s : section.m_lines)
         out << s << std::endl;
diff --git a/Source/Core/Common/StringUtil.cpp b/Source/Core/Common/StringUtil.cpp
index 2e79fe9176..b946cfd450 100644
--- a/Source/Core/Common/StringUtil.cpp
+++ b/Source/Core/Common/StringUtil.cpp
@@ -227,7 +227,7 @@ std::string StripSpaces(const std::string& str)
 // ends, as done by StripSpaces above, for example.
 std::string StripQuotes(const std::string& s)
 {
-  if (s.size() && '\"' == s[0] && '\"' == *s.rbegin())
+  if (!s.empty() && '\"' == s[0] && '\"' == *s.rbegin())
     return s.substr(1, s.size() - 2);
   else
     return s;
diff --git a/Source/Core/Core/ActionReplay.cpp b/Source/Core/Core/ActionReplay.cpp
index 5df92b3e26..05fd96f905 100644
--- a/Source/Core/Core/ActionReplay.cpp
+++ b/Source/Core/Core/ActionReplay.cpp
@@ -184,7 +184,7 @@ std::vector<ARCode> LoadCodes(const IniFile& global_ini, const IniFile& local_in
     local_ini.GetLines("ActionReplay_Enabled", &enabled_lines);
     for (const std::string& line : enabled_lines)
     {
-      if (line.size() != 0 && line[0] == '$')
+      if (!line.empty() && line[0] == '$')
       {
         std::string name = line.substr(1, line.size() - 1);
         enabled_names.insert(name);
@@ -211,12 +211,12 @@ std::vector<ARCode> LoadCodes(const IniFile& global_ini, const IniFile& local_in
       // Check if the line is a name of the code
       if (line[0] == '$')
       {
-        if (current_code.ops.size())
+        if (!current_code.ops.empty())
         {
           codes.push_back(current_code);
           current_code.ops.clear();
         }
-        if (encrypted_lines.size())
+        if (!encrypted_lines.empty())
         {
           DecryptARCode(encrypted_lines, &current_code.ops);
           codes.push_back(current_code);
@@ -270,11 +270,11 @@ std::vector<ARCode> LoadCodes(const IniFile& global_ini, const IniFile& local_in
     }
 
     // Handle the last code correctly.
-    if (current_code.ops.size())
+    if (!current_code.ops.empty())
     {
       codes.push_back(current_code);
     }
-    if (encrypted_lines.size())
+    if (!encrypted_lines.empty())
     {
       DecryptARCode(encrypted_lines, &current_code.ops);
       codes.push_back(current_code);
diff --git a/Source/Core/Core/FifoPlayer/FifoRecorder.cpp b/Source/Core/Core/FifoPlayer/FifoRecorder.cpp
index 8d3cfb9aeb..8e1f14b11a 100644
--- a/Source/Core/Core/FifoPlayer/FifoRecorder.cpp
+++ b/Source/Core/Core/FifoPlayer/FifoRecorder.cpp
@@ -92,7 +92,7 @@ void FifoRecorder::WriteGPCommand(const u8* data, u32 size)
     memcpy(&m_FifoData[currentSize], data, size);
   }
 
-  if (m_FrameEnded && m_FifoData.size() > 0)
+  if (m_FrameEnded && !m_FifoData.empty())
   {
     m_CurrentFrame.fifoData = m_FifoData;
 
diff --git a/Source/Core/Core/GeckoCodeConfig.cpp b/Source/Core/Core/GeckoCodeConfig.cpp
index cd7955e7bc..2365794b8f 100644
--- a/Source/Core/Core/GeckoCodeConfig.cpp
+++ b/Source/Core/Core/GeckoCodeConfig.cpp
@@ -69,7 +69,7 @@ std::vector<GeckoCode> DownloadCodes(std::string gameid, bool* succeeded)
     if (line.empty())
     {
       // add the code
-      if (gcode.codes.size())
+      if (!gcode.codes.empty())
         gcodes.push_back(gcode);
       gcode = GeckoCode();
       read_state = 0;
@@ -126,7 +126,7 @@ std::vector<GeckoCode> DownloadCodes(std::string gameid, bool* succeeded)
   }
 
   // add the last code
-  if (gcode.codes.size())
+  if (!gcode.codes.empty())
     gcodes.push_back(gcode);
 
   return gcodes;
@@ -157,7 +157,7 @@ std::vector<GeckoCode> LoadCodes(const IniFile& globalIni, const IniFile& localI
       case '+':
         ss.seekg(1);
       case '$':
-        if (gcode.name.size())
+        if (!gcode.name.empty())
           gcodes.push_back(gcode);
         gcode = GeckoCode();
         gcode.enabled = (1 == ss.tellg());  // silly
@@ -189,7 +189,7 @@ std::vector<GeckoCode> LoadCodes(const IniFile& globalIni, const IniFile& localI
     }
 
     // add the last code
-    if (gcode.name.size())
+    if (!gcode.name.empty())
     {
       gcodes.push_back(gcode);
     }
diff --git a/Source/Core/Core/HLE/HLE.cpp b/Source/Core/Core/HLE/HLE.cpp
index 51699ffd21..9b4cfcddf2 100644
--- a/Source/Core/Core/HLE/HLE.cpp
+++ b/Source/Core/Core/HLE/HLE.cpp
@@ -243,7 +243,7 @@ u32 UnPatch(const std::string& patch_name)
   }
 
   const auto& symbols = g_symbolDB.GetSymbolsFromName(patch_name);
-  if (symbols.size())
+  if (!symbols.empty())
   {
     const auto& symbol = symbols[0];
     for (u32 addr = symbol->address; addr < symbol->address + symbol->size; addr += 4)
diff --git a/Source/Core/Core/HW/GCMemcard/GCMemcardDirectory.cpp b/Source/Core/Core/HW/GCMemcard/GCMemcardDirectory.cpp
index 9d4aa83f44..7b5e56678f 100644
--- a/Source/Core/Core/HW/GCMemcard/GCMemcardDirectory.cpp
+++ b/Source/Core/Core/HW/GCMemcard/GCMemcardDirectory.cpp
@@ -470,7 +470,7 @@ inline void GCMemcardDirectory::SyncSaves()
           m_saves[i].m_used_blocks.clear();
           m_saves[i].m_save_data.clear();
         }
-        if (m_saves[i].m_used_blocks.size() == 0)
+        if (m_saves[i].m_used_blocks.empty())
         {
           SetUsedBlocks(i);
         }
@@ -493,7 +493,7 @@ inline s32 GCMemcardDirectory::SaveAreaRW(u32 block, bool writing)
   {
     if (m_saves[i].m_gci_header.m_gamecode != DEntry::UNINITIALIZED_GAMECODE)
     {
-      if (m_saves[i].m_used_blocks.size() == 0)
+      if (m_saves[i].m_used_blocks.empty())
       {
         SetUsedBlocks(i);
       }
@@ -591,7 +591,7 @@ void GCMemcardDirectory::FlushToFile()
       if (m_saves[i].m_gci_header.m_gamecode != DEntry::UNINITIALIZED_GAMECODE)
       {
         m_saves[i].m_dirty = false;
-        if (m_saves[i].m_save_data.size() == 0)
+        if (m_saves[i].m_save_data.empty())
         {
           // The save's header has been changed but the actual save blocks haven't been read/written
           // to
@@ -658,7 +658,7 @@ void GCMemcardDirectory::FlushToFile()
     // this ensures that the save data for all of the current games gci files are stored in the
     // savestate
     u32 gamecode = BE32(m_saves[i].m_gci_header.m_gamecode.data());
-    if (gamecode != m_game_id && gamecode != 0xFFFFFFFF && m_saves[i].m_save_data.size())
+    if (gamecode != m_game_id && gamecode != 0xFFFFFFFF && !m_saves[i].m_save_data.empty())
     {
       INFO_LOG(EXPANSIONINTERFACE, "Flushing savedata to disk for %s",
                m_saves[i].m_filename.c_str());
@@ -695,7 +695,7 @@ void GCMemcardDirectory::DoState(PointerWrap& p)
 
 bool GCIFile::LoadSaveBlocks()
 {
-  if (m_save_data.size() == 0)
+  if (m_save_data.empty())
   {
     if (m_filename.empty())
       return false;
diff --git a/Source/Core/Core/IOS/IOS.cpp b/Source/Core/Core/IOS/IOS.cpp
index 325e6bb5ff..3099fa2421 100644
--- a/Source/Core/Core/IOS/IOS.cpp
+++ b/Source/Core/Core/IOS/IOS.cpp
@@ -630,7 +630,7 @@ void Kernel::UpdateIPC()
   if (!IsReady())
     return;
 
-  if (m_request_queue.size())
+  if (!m_request_queue.empty())
   {
     ClearX1();
     GenerateAck(m_request_queue.front());
@@ -640,7 +640,7 @@ void Kernel::UpdateIPC()
     return;
   }
 
-  if (m_reply_queue.size())
+  if (!m_reply_queue.empty())
   {
     GenerateReply(m_reply_queue.front());
     DEBUG_LOG(IOS, "<<-- Reply to IPC Request @ 0x%08x", m_reply_queue.front());
@@ -648,7 +648,7 @@ void Kernel::UpdateIPC()
     return;
   }
 
-  if (m_ack_queue.size())
+  if (!m_ack_queue.empty())
   {
     GenerateAck(m_ack_queue.front());
     WARN_LOG(IOS, "<<-- Double-ack to IPC Request @ 0x%08x", m_ack_queue.front());
diff --git a/Source/Core/Core/IOS/Network/IP/Top.cpp b/Source/Core/Core/IOS/Network/IP/Top.cpp
index fc247fe168..2dddb53e54 100644
--- a/Source/Core/Core/IOS/Network/IP/Top.cpp
+++ b/Source/Core/Core/IOS/Network/IP/Top.cpp
@@ -972,7 +972,7 @@ IPCCommandResult NetIPTop::HandleGetAddressInfoRequest(const IOCtlVRequest& requ
   // So we have to do a bit of juggling here.
   std::string nodeNameStr;
   const char* pNodeName = nullptr;
-  if (request.in_vectors.size() > 0 && request.in_vectors[0].size > 0)
+  if (!request.in_vectors.empty() && request.in_vectors[0].size > 0)
   {
     nodeNameStr = Memory::GetString(request.in_vectors[0].address, request.in_vectors[0].size);
     pNodeName = nodeNameStr.c_str();
diff --git a/Source/Core/Core/IOS/Network/SSL.cpp b/Source/Core/Core/IOS/Network/SSL.cpp
index aec815f238..22a5a54bb8 100644
--- a/Source/Core/Core/IOS/Network/SSL.cpp
+++ b/Source/Core/Core/IOS/Network/SSL.cpp
@@ -142,7 +142,7 @@ IPCCommandResult NetSSL::IOCtlV(const IOCtlVRequest& request)
   u32 BufferOut = 0, BufferOut2 = 0, BufferOut3 = 0;
   u32 BufferOutSize = 0, BufferOutSize2 = 0, BufferOutSize3 = 0;
 
-  if (request.in_vectors.size() > 0)
+  if (!request.in_vectors.empty())
   {
     BufferIn = request.in_vectors.at(0).address;
     BufferInSize = request.in_vectors.at(0).size;
@@ -158,7 +158,7 @@ IPCCommandResult NetSSL::IOCtlV(const IOCtlVRequest& request)
     BufferInSize3 = request.in_vectors.at(2).size;
   }
 
-  if (request.io_vectors.size() > 0)
+  if (!request.io_vectors.empty())
   {
     BufferOut = request.io_vectors.at(0).address;
     BufferOutSize = request.io_vectors.at(0).size;
diff --git a/Source/Core/Core/IOS/Network/Socket.cpp b/Source/Core/Core/IOS/Network/Socket.cpp
index 00b8155789..e23821d058 100644
--- a/Source/Core/Core/IOS/Network/Socket.cpp
+++ b/Source/Core/Core/IOS/Network/Socket.cpp
@@ -292,13 +292,13 @@ void WiiSocket::Update(bool read, bool write, bool except)
       u32 BufferOut = 0, BufferOut2 = 0;
       u32 BufferOutSize = 0, BufferOutSize2 = 0;
 
-      if (ioctlv.in_vectors.size() > 0)
+      if (!ioctlv.in_vectors.empty())
       {
         BufferIn = ioctlv.in_vectors.at(0).address;
         BufferInSize = ioctlv.in_vectors.at(0).size;
       }
 
-      if (ioctlv.io_vectors.size() > 0)
+      if (!ioctlv.io_vectors.empty())
       {
         BufferOut = ioctlv.io_vectors.at(0).address;
         BufferOutSize = ioctlv.io_vectors.at(0).size;
diff --git a/Source/Core/Core/IOS/WFS/WFSSRV.cpp b/Source/Core/Core/IOS/WFS/WFSSRV.cpp
index d09c91b0e4..28c28e4f20 100644
--- a/Source/Core/Core/IOS/WFS/WFSSRV.cpp
+++ b/Source/Core/Core/IOS/WFS/WFSSRV.cpp
@@ -456,7 +456,7 @@ void WFSSRV::ReleaseFileDescriptor(u16 fd)
   fd_obj->in_use = false;
 
   // Garbage collect and shrink the array if possible.
-  while (m_fds.size() > 0 && !m_fds[m_fds.size() - 1].in_use)
+  while (!m_fds.empty() && !m_fds[m_fds.size() - 1].in_use)
   {
     m_fds.resize(m_fds.size() - 1);
   }
diff --git a/Source/Core/Core/MemoryWatcher.cpp b/Source/Core/Core/MemoryWatcher.cpp
index 635a1ed9e7..e4bd3d0318 100644
--- a/Source/Core/Core/MemoryWatcher.cpp
+++ b/Source/Core/Core/MemoryWatcher.cpp
@@ -67,7 +67,7 @@ bool MemoryWatcher::LoadAddresses(const std::string& path)
   while (std::getline(locations, line))
     ParseLine(line);
 
-  return m_values.size() > 0;
+  return !m_values.empty();
 }
 
 void MemoryWatcher::ParseLine(const std::string& line)
diff --git a/Source/Core/Core/NetPlayServer.cpp b/Source/Core/Core/NetPlayServer.cpp
index c12bafb5b2..6eedc45a6f 100644
--- a/Source/Core/Core/NetPlayServer.cpp
+++ b/Source/Core/Core/NetPlayServer.cpp
@@ -347,7 +347,7 @@ unsigned int NetPlayServer::OnConnect(ENetPeer* socket, sf::Packet& rpac)
   Send(player.socket, spac);
 
   // send new client the selected game
-  if (m_selected_game != "")
+  if (!m_selected_game.empty())
   {
     spac.clear();
     spac << static_cast<MessageId>(NP_MSG_CHANGE_GAME);
diff --git a/Source/Core/Core/PatchEngine.cpp b/Source/Core/Core/PatchEngine.cpp
index 8d1b3a4a78..8b048d4807 100644
--- a/Source/Core/Core/PatchEngine.cpp
+++ b/Source/Core/Core/PatchEngine.cpp
@@ -54,7 +54,7 @@ void LoadPatchSection(const std::string& section, std::vector<Patch>& patches, I
   localIni.GetLines(enabledSectionName, &enabledLines);
   for (const std::string& line : enabledLines)
   {
-    if (line.size() != 0 && line[0] == '$')
+    if (!line.empty() && line[0] == '$')
     {
       std::string name = line.substr(1, line.size() - 1);
       enabledNames.insert(name);
@@ -71,13 +71,13 @@ void LoadPatchSection(const std::string& section, std::vector<Patch>& patches, I
 
     for (std::string& line : lines)
     {
-      if (line.size() == 0)
+      if (line.empty())
         continue;
 
       if (line[0] == '$')
       {
         // Take care of the previous code
-        if (currentPatch.name.size())
+        if (!currentPatch.name.empty())
         {
           patches.push_back(currentPatch);
         }
@@ -119,7 +119,7 @@ void LoadPatchSection(const std::string& section, std::vector<Patch>& patches, I
       }
     }
 
-    if (currentPatch.name.size() && currentPatch.entries.size())
+    if (!currentPatch.name.empty() && !currentPatch.entries.empty())
     {
       patches.push_back(currentPatch);
     }
diff --git a/Source/Core/DiscIO/WbfsBlob.cpp b/Source/Core/DiscIO/WbfsBlob.cpp
index 0227a692c2..be7403fa1f 100644
--- a/Source/Core/DiscIO/WbfsBlob.cpp
+++ b/Source/Core/DiscIO/WbfsBlob.cpp
@@ -58,7 +58,7 @@ void WbfsFileReader::OpenAdditionalFiles(const std::string& path)
   if (path.length() < 4)
     return;
 
-  ASSERT(m_files.size() > 0);  // The code below gives .wbf0 for index 0, but it should be .wbfs
+  ASSERT(!m_files.empty());  // The code below gives .wbf0 for index 0, but it should be .wbfs
 
   while (true)
   {
diff --git a/Source/Core/DolphinQt/Config/Mapping/IOWindow.cpp b/Source/Core/DolphinQt/Config/Mapping/IOWindow.cpp
index 2a0caef151..8bf3ab0630 100644
--- a/Source/Core/DolphinQt/Config/Mapping/IOWindow.cpp
+++ b/Source/Core/DolphinQt/Config/Mapping/IOWindow.cpp
@@ -200,7 +200,7 @@ void IOWindow::OnDetectButtonPressed()
     {
       const auto list = m_option_list->findItems(expr, Qt::MatchFixedString);
 
-      if (list.size() > 0)
+      if (!list.empty())
         m_option_list->setCurrentItem(list[0]);
     }
 
diff --git a/Source/Core/DolphinQt/Debugger/BreakpointWidget.cpp b/Source/Core/DolphinQt/Debugger/BreakpointWidget.cpp
index eb40ab0614..27af010d23 100644
--- a/Source/Core/DolphinQt/Debugger/BreakpointWidget.cpp
+++ b/Source/Core/DolphinQt/Debugger/BreakpointWidget.cpp
@@ -223,7 +223,7 @@ void BreakpointWidget::Update()
 
 void BreakpointWidget::OnDelete()
 {
-  if (m_table->selectedItems().size() == 0)
+  if (m_table->selectedItems().empty())
     return;
 
   auto address = m_table->selectedItems()[0]->data(Qt::UserRole).toUInt();
diff --git a/Source/Core/DolphinQt/Debugger/WatchWidget.cpp b/Source/Core/DolphinQt/Debugger/WatchWidget.cpp
index 69057f0dbb..d4bc8ae65a 100644
--- a/Source/Core/DolphinQt/Debugger/WatchWidget.cpp
+++ b/Source/Core/DolphinQt/Debugger/WatchWidget.cpp
@@ -232,7 +232,7 @@ void WatchWidget::ShowContextMenu()
 {
   QMenu* menu = new QMenu(this);
 
-  if (m_table->selectedItems().size())
+  if (!m_table->selectedItems().empty())
   {
     auto row_variant = m_table->selectedItems()[0]->data(Qt::UserRole);
 
diff --git a/Source/Core/DolphinQt/FIFO/FIFOAnalyzer.cpp b/Source/Core/DolphinQt/FIFO/FIFOAnalyzer.cpp
index 0cded7593b..f71625bdb7 100644
--- a/Source/Core/DolphinQt/FIFO/FIFOAnalyzer.cpp
+++ b/Source/Core/DolphinQt/FIFO/FIFOAnalyzer.cpp
@@ -423,7 +423,7 @@ void FIFOAnalyzer::FindPrevious()
 
 void FIFOAnalyzer::ShowSearchResult(size_t index)
 {
-  if (!m_search_results.size())
+  if (m_search_results.empty())
     return;
 
   if (index > m_search_results.size())
diff --git a/Source/Core/DolphinQt/GameList/GameList.cpp b/Source/Core/DolphinQt/GameList/GameList.cpp
index 08cd5e2fb1..bcc6cf330b 100644
--- a/Source/Core/DolphinQt/GameList/GameList.cpp
+++ b/Source/Core/DolphinQt/GameList/GameList.cpp
@@ -474,7 +474,7 @@ void GameList::CompressISO(bool decompress)
   auto files = GetSelectedGames();
   const auto game = GetSelectedGame();
 
-  if (files.size() == 0 || !game)
+  if (files.empty() || !game)
     return;
 
   bool wii_warning_given = false;
diff --git a/Source/Core/DolphinQt/MainWindow.cpp b/Source/Core/DolphinQt/MainWindow.cpp
index 14230bf94d..b615e6a693 100644
--- a/Source/Core/DolphinQt/MainWindow.cpp
+++ b/Source/Core/DolphinQt/MainWindow.cpp
@@ -1418,7 +1418,7 @@ void MainWindow::dropEvent(QDropEvent* event)
   else
   {
     Settings& settings = Settings::Instance();
-    const bool show_confirm = settings.GetPaths().size() != 0;
+    const bool show_confirm = !settings.GetPaths().empty();
 
     for (const QString& folder : folders)
     {
diff --git a/Source/Core/DolphinQt/NetPlay/NetPlaySetupDialog.cpp b/Source/Core/DolphinQt/NetPlay/NetPlaySetupDialog.cpp
index 91713b5c3f..0da0bc6194 100644
--- a/Source/Core/DolphinQt/NetPlay/NetPlaySetupDialog.cpp
+++ b/Source/Core/DolphinQt/NetPlay/NetPlaySetupDialog.cpp
@@ -265,7 +265,7 @@ void NetPlaySetupDialog::accept()
   else
   {
     auto items = m_host_games->selectedItems();
-    if (items.size() == 0)
+    if (items.empty())
     {
       QMessageBox::critical(this, tr("Error"), tr("You must select a game to host!"));
       return;
diff --git a/Source/Core/InputCommon/ControlReference/ControlReference.cpp b/Source/Core/InputCommon/ControlReference/ControlReference.cpp
index b2aa13f1c0..b3355418e2 100644
--- a/Source/Core/InputCommon/ControlReference/ControlReference.cpp
+++ b/Source/Core/InputCommon/ControlReference/ControlReference.cpp
@@ -126,7 +126,7 @@ ciface::Core::Device::Control* InputReference::Detect(const unsigned int ms,
   unsigned int time = 0;
   std::vector<bool> states(device->Inputs().size());
 
-  if (device->Inputs().size() == 0)
+  if (device->Inputs().empty())
     return nullptr;
 
   // get starting state of all inputs,
diff --git a/Source/Core/UICommon/CommandLineParse.cpp b/Source/Core/UICommon/CommandLineParse.cpp
index 69f1491ad7..46838f05c3 100644
--- a/Source/Core/UICommon/CommandLineParse.cpp
+++ b/Source/Core/UICommon/CommandLineParse.cpp
@@ -25,10 +25,10 @@ public:
                                const std::string& audio_backend)
       : ConfigLayerLoader(Config::LayerType::CommandLine)
   {
-    if (video_backend.size())
+    if (!video_backend.empty())
       m_values.emplace_back(std::make_tuple(Config::MAIN_GFX_BACKEND.location, video_backend));
 
-    if (audio_backend.size())
+    if (!audio_backend.empty())
       m_values.emplace_back(
           std::make_tuple(Config::MAIN_DSP_HLE.location, ValueToString(audio_backend == "HLE")));
 
diff --git a/Source/Core/UICommon/GameFileCache.cpp b/Source/Core/UICommon/GameFileCache.cpp
index 7fa558d889..aad527e612 100644
--- a/Source/Core/UICommon/GameFileCache.cpp
+++ b/Source/Core/UICommon/GameFileCache.cpp
@@ -232,7 +232,7 @@ bool GameFileCache::SyncCacheFile(bool save)
   else
   {
     std::vector<u8> buffer(f.GetSize());
-    if (buffer.size() && f.ReadBytes(buffer.data(), buffer.size()))
+    if (!buffer.empty() && f.ReadBytes(buffer.data(), buffer.size()))
     {
       u8* ptr = buffer.data();
       PointerWrap p(&ptr, PointerWrap::MODE_READ);
diff --git a/Source/Core/VideoBackends/OGL/Render.cpp b/Source/Core/VideoBackends/OGL/Render.cpp
index 68e888f6bf..b72941583e 100644
--- a/Source/Core/VideoBackends/OGL/Render.cpp
+++ b/Source/Core/VideoBackends/OGL/Render.cpp
@@ -890,7 +890,7 @@ void Renderer::UpdateEFBCache(EFBAccessType type, u32 cacheRectIdx, const EFBRec
 {
   const u32 cacheType = (type == EFBAccessType::PeekZ ? 0 : 1);
 
-  if (!s_efbCache[cacheType][cacheRectIdx].size())
+  if (s_efbCache[cacheType][cacheRectIdx].empty())
     s_efbCache[cacheType][cacheRectIdx].resize(EFB_CACHE_RECT_SIZE * EFB_CACHE_RECT_SIZE);
 
   u32 targetPixelRcWidth = targetPixelRc.right - targetPixelRc.left;
diff --git a/Source/Core/VideoCommon/PostProcessing.cpp b/Source/Core/VideoCommon/PostProcessing.cpp
index 756bcea5e0..a83469e451 100644
--- a/Source/Core/VideoCommon/PostProcessing.cpp
+++ b/Source/Core/VideoCommon/PostProcessing.cpp
@@ -70,7 +70,7 @@ PostProcessingShaderConfiguration::~PostProcessingShaderConfiguration() = defaul
 std::string PostProcessingShaderConfiguration::LoadShader(std::string shader)
 {
   // Load the shader from the configuration if there isn't one sent to us.
-  if (shader == "")
+  if (shader.empty())
     shader = g_ActiveConfig.sPostProcessingShader;
   m_current_shader = shader;
 
@@ -81,7 +81,7 @@ std::string PostProcessingShaderConfiguration::LoadShader(std::string shader)
   std::string code;
   std::string path = File::GetUserPath(D_SHADERS_IDX) + sub_dir + shader + ".glsl";
 
-  if (shader == "")
+  if (shader.empty())
   {
     code = s_default_shader;
   }
@@ -150,7 +150,7 @@ void PostProcessingShaderConfiguration::LoadOptions(const std::string& code)
       }
 #endif
 
-      if (line.size() > 0)
+      if (!line.empty())
       {
         if (line[0] == '[')
         {
@@ -171,7 +171,7 @@ void PostProcessingShaderConfiguration::LoadOptions(const std::string& code)
             std::string key, value;
             IniFile::ParseLine(line, &key, &value);
 
-            if (!(key == "" && value == ""))
+            if (!(key.empty() && value.empty()))
               current_strings->m_options.emplace_back(key, value);
           }
         }
@@ -272,7 +272,7 @@ void PostProcessingShaderConfiguration::LoadOptionsConfiguration()
     {
       std::string value;
       ini.GetOrCreateSection(section)->Get(it.second.m_option_name, &value);
-      if (value != "")
+      if (!value.empty())
         TryParseVector(value, &it.second.m_integer_values);
     }
     break;
@@ -280,7 +280,7 @@ void PostProcessingShaderConfiguration::LoadOptionsConfiguration()
     {
       std::string value;
       ini.GetOrCreateSection(section)->Get(it.second.m_option_name, &value);
-      if (value != "")
+      if (!value.empty())
         TryParseVector(value, &it.second.m_float_values);
     }
     break;