diff --git a/src/lib/base/LogOutputters.cpp b/src/lib/base/LogOutputters.cpp
index 9ef563785..4261d6eaa 100644
--- a/src/lib/base/LogOutputters.cpp
+++ b/src/lib/base/LogOutputters.cpp
@@ -141,7 +141,7 @@ void FileLogOutputter::setLogFilename(const QString &logFile)
   m_fileName = logFile;
 }
 
-bool FileLogOutputter::write(LogLevel level, const QString &message)
+bool FileLogOutputter::write(LogLevel, const QString &message)
 {
   QFile file(m_fileName);
   if (!file.open(QFile::WriteOnly | QFile::Append))
diff --git a/src/lib/deskflow/ClientApp.h b/src/lib/deskflow/ClientApp.h
index 31bfe4872..286e5dc62 100644
--- a/src/lib/deskflow/ClientApp.h
+++ b/src/lib/deskflow/ClientApp.h
@@ -38,7 +38,7 @@ public:
   {
     // do nothing
   }
-  bool loadConfig(const std::string &pathname) override
+  bool loadConfig(const std::string &) override
   {
     return false;
   }
diff --git a/src/lib/deskflow/IPlatformScreen.cpp b/src/lib/deskflow/IPlatformScreen.cpp
index 839647b69..7afb31b6d 100644
--- a/src/lib/deskflow/IPlatformScreen.cpp
+++ b/src/lib/deskflow/IPlatformScreen.cpp
@@ -6,7 +6,7 @@
 
 #include "deskflow/IPlatformScreen.h"
 
-bool IPlatformScreen::fakeMediaKey(KeyID id)
+bool IPlatformScreen::fakeMediaKey(KeyID)
 {
   return false;
 }
diff --git a/src/lib/deskflow/IPlatformScreen.h b/src/lib/deskflow/IPlatformScreen.h
index f82c6326a..c8a3cbda9 100644
--- a/src/lib/deskflow/IPlatformScreen.h
+++ b/src/lib/deskflow/IPlatformScreen.h
@@ -181,7 +181,7 @@ public:
   bool fakeKeyUp(KeyButton button) override = 0;
   void fakeAllKeysUp() override = 0;
   bool fakeCtrlAltDel() override = 0;
-  bool fakeMediaKey(KeyID id) override;
+  bool fakeMediaKey(KeyID) override;
   bool isKeyDown(KeyButton) const override = 0;
   KeyModifierMask getActiveModifiers() const override = 0;
   KeyModifierMask pollActiveModifiers() const override = 0;
diff --git a/src/lib/deskflow/KeyState.cpp b/src/lib/deskflow/KeyState.cpp
index 69d1fe7d3..0c12ef145 100644
--- a/src/lib/deskflow/KeyState.cpp
+++ b/src/lib/deskflow/KeyState.cpp
@@ -954,7 +954,7 @@ void KeyState::fakeAllKeysUp()
   m_mask = pollActiveModifiers();
 }
 
-bool KeyState::fakeMediaKey(KeyID id)
+bool KeyState::fakeMediaKey(KeyID)
 {
   return false;
 }
diff --git a/src/lib/gui/dialogs/ServerConfigDialog.cpp b/src/lib/gui/dialogs/ServerConfigDialog.cpp
index 524e6ba1b..fbe4b60e7 100644
--- a/src/lib/gui/dialogs/ServerConfigDialog.cpp
+++ b/src/lib/gui/dialogs/ServerConfigDialog.cpp
@@ -244,7 +244,7 @@ void ServerConfigDialog::removeHotkey()
   onChange();
 }
 
-void ServerConfigDialog::listHotkeysSelectionChanged(const QItemSelection &selected, const QItemSelection &deselected)
+void ServerConfigDialog::listHotkeysSelectionChanged(const QItemSelection &selected, const QItemSelection &)
 {
   bool itemsSelected = !selected.isEmpty();
   ui->btnEditHotkey->setEnabled(itemsSelected);
@@ -393,7 +393,7 @@ void ServerConfigDialog::toggleCornerTopRight(bool enable)
   onChange();
 }
 
-void ServerConfigDialog::listActionsSelectionChanged(const QItemSelection &selected, const QItemSelection &deselected)
+void ServerConfigDialog::listActionsSelectionChanged(const QItemSelection &selected, const QItemSelection &)
 {
   bool enabled = !selected.isEmpty();
   ui->btnEditAction->setEnabled(enabled);
diff --git a/src/lib/gui/validators/LineEditValidator.cpp b/src/lib/gui/validators/LineEditValidator.cpp
index c0c9e5696..a0edbf924 100644
--- a/src/lib/gui/validators/LineEditValidator.cpp
+++ b/src/lib/gui/validators/LineEditValidator.cpp
@@ -29,7 +29,7 @@ void LineEditValidator::addValidator(std::unique_ptr<IStringValidator> validator
   m_Validators.push_back(std::move(validator));
 }
 
-QValidator::State LineEditValidator::validate(QString &input, int &pos) const
+QValidator::State LineEditValidator::validate(QString &input, int &) const
 {
   assert(m_pLineEdit);
 
diff --git a/src/lib/platform/EiEventQueueBuffer.cpp b/src/lib/platform/EiEventQueueBuffer.cpp
index dc1629b9a..a6b85fe3c 100644
--- a/src/lib/platform/EiEventQueueBuffer.cpp
+++ b/src/lib/platform/EiEventQueueBuffer.cpp
@@ -137,7 +137,7 @@ bool EiEventQueueBuffer::isEmpty() const
   return m_queue.empty();
 }
 
-EventQueueTimer *EiEventQueueBuffer::newTimer(double duration, bool oneShot) const
+EventQueueTimer *EiEventQueueBuffer::newTimer(double, bool) const
 {
   return new EventQueueTimer;
 }
diff --git a/src/lib/platform/EiKeyState.cpp b/src/lib/platform/EiKeyState.cpp
index 4bc2f64fc..6f98451a1 100644
--- a/src/lib/platform/EiKeyState.cpp
+++ b/src/lib/platform/EiKeyState.cpp
@@ -106,7 +106,7 @@ std::int32_t EiKeyState::pollActiveGroup() const
   return xkb_state_serialize_layout(m_xkbState, XKB_STATE_LAYOUT_EFFECTIVE);
 }
 
-void EiKeyState::pollPressedKeys(KeyButtonSet &pressedKeys) const
+void EiKeyState::pollPressedKeys(KeyButtonSet &) const
 {
   // FIXME
   return;
diff --git a/src/lib/platform/EiScreen.cpp b/src/lib/platform/EiScreen.cpp
index 54c1e24fd..cd168d8ee 100644
--- a/src/lib/platform/EiScreen.cpp
+++ b/src/lib/platform/EiScreen.cpp
@@ -165,7 +165,7 @@ void *EiScreen::getEventTarget() const
   return const_cast<void *>(static_cast<const void *>(this));
 }
 
-bool EiScreen::getClipboard(ClipboardID id, IClipboard *clipboard) const
+bool EiScreen::getClipboard(ClipboardID, IClipboard *) const
 {
   return false;
 }
@@ -244,7 +244,7 @@ std::int32_t EiScreen::getJumpZoneSize() const
   return 1;
 }
 
-bool EiScreen::isAnyMouseButtonDown(uint32_t &buttonID) const
+bool EiScreen::isAnyMouseButtonDown(uint32_t &) const
 {
   return false;
 }
@@ -385,7 +385,7 @@ void EiScreen::leave()
   m_isOnScreen = false;
 }
 
-bool EiScreen::setClipboard(ClipboardID id, const IClipboard *clipboard)
+bool EiScreen::setClipboard(ClipboardID, const IClipboard *)
 {
   return false;
 }
@@ -731,7 +731,7 @@ void EiScreen::handlePortalSessionClosed()
   initEi();
 }
 
-void EiScreen::handleSystemEvent(const Event &sysevent)
+void EiScreen::handleSystemEvent(const Event &)
 {
   std::scoped_lock lock{m_mutex};
 
diff --git a/src/lib/platform/XWindowsScreen.cpp b/src/lib/platform/XWindowsScreen.cpp
index 0694c8f68..9d0dddf02 100644
--- a/src/lib/platform/XWindowsScreen.cpp
+++ b/src/lib/platform/XWindowsScreen.cpp
@@ -740,7 +740,7 @@ int32_t XWindowsScreen::getJumpZoneSize() const
   return 1;
 }
 
-bool XWindowsScreen::isAnyMouseButtonDown(uint32_t &buttonID) const
+bool XWindowsScreen::isAnyMouseButtonDown(uint32_t &) const
 {
   // query the pointer to get the button state
   Window root;
diff --git a/src/lib/server/ClientProxy1_0.cpp b/src/lib/server/ClientProxy1_0.cpp
index 904c0361f..a59056055 100644
--- a/src/lib/server/ClientProxy1_0.cpp
+++ b/src/lib/server/ClientProxy1_0.cpp
@@ -305,13 +305,13 @@ void ClientProxy1_0::mouseWheel(int32_t, int32_t yDelta)
   ProtocolUtil::writef(getStream(), kMsgDMouseWheel1_0, yDelta);
 }
 
-void ClientProxy1_0::sendDragInfo(uint32_t fileCount, const char *info, size_t size)
+void ClientProxy1_0::sendDragInfo(uint32_t, const char *, size_t)
 {
   // ignore -- not supported in protocol 1.0
   LOG_DEBUG("draggingInfoSending not supported");
 }
 
-void ClientProxy1_0::fileChunkSending(uint8_t mark, char *data, size_t dataSize)
+void ClientProxy1_0::fileChunkSending(uint8_t, char *, size_t)
 {
   // ignore -- not supported in protocol 1.0
   LOG_DEBUG("fileChunkSending not supported");
@@ -324,7 +324,7 @@ std::string ClientProxy1_0::getSecureInputApp() const
   return "";
 }
 
-void ClientProxy1_0::secureInputNotification(const std::string &app) const
+void ClientProxy1_0::secureInputNotification(const std::string &) const
 {
   // ignore -- not supported in protocol 1.0
   LOG_DEBUG("secureInputNotification not supported");
diff --git a/src/lib/server/InputFilter.cpp b/src/lib/server/InputFilter.cpp
index fce79756d..1fe98f32f 100644
--- a/src/lib/server/InputFilter.cpp
+++ b/src/lib/server/InputFilter.cpp
@@ -259,7 +259,7 @@ std::string InputFilter::RestartServer::format() const
   return deskflow::string::sprintf("restartServer(%s)", s_mode[m_mode]);
 }
 
-void InputFilter::RestartServer::perform(const Event &event)
+void InputFilter::RestartServer::perform(const Event &)
 {
   // HACK Super hack we should gracefully exit
   exit(0);
diff --git a/src/unittests/legacytests/legacytests/deskflow/KeyStateTests.cpp b/src/unittests/legacytests/legacytests/deskflow/KeyStateTests.cpp
index 48b8fe229..eb1e72379 100644
--- a/src/unittests/legacytests/legacytests/deskflow/KeyStateTests.cpp
+++ b/src/unittests/legacytests/legacytests/deskflow/KeyStateTests.cpp
@@ -16,12 +16,10 @@ using ::testing::_;
 using ::testing::Invoke;
 using ::testing::NiceMock;
 using ::testing::Return;
-using ::testing::ReturnRef;
-using ::testing::SaveArg;
 
 void stubPollPressedKeys(IKeyState::KeyButtonSet &pressedKeys);
 
-void assertMaskIsOne(ForeachKeyCallback cb, void *userData);
+void assertMaskIsOne(ForeachKeyCallback, void *userData);
 
 const deskflow::KeyMap::KeyItem *stubMapKey(
     deskflow::KeyMap::Keystrokes &keys, KeyID id, int32_t group, deskflow::KeyMap::ModifierToKeys &activeModifiers,
@@ -406,7 +404,7 @@ void stubPollPressedKeys(IKeyState::KeyButtonSet &pressedKeys)
   pressedKeys.insert(1);
 }
 
-void assertMaskIsOne(ForeachKeyCallback cb, void *userData)
+void assertMaskIsOne(ForeachKeyCallback, void *userData)
 {
   ASSERT_EQ(1, ((KeyState::AddActiveModifierContext *)userData)->m_mask);
 }
diff --git a/src/unittests/net/SecureUtilsTests.cpp b/src/unittests/net/SecureUtilsTests.cpp
index bc5ad413e..c55420166 100644
--- a/src/unittests/net/SecureUtilsTests.cpp
+++ b/src/unittests/net/SecureUtilsTests.cpp
@@ -13,7 +13,7 @@ using namespace deskflow;
 
 void SecureUtilsTests::checkHex()
 {
-  QByteArray fingerprint(
+  const QByteArray fingerprint(
       "\x28\xFD\x0A\x98\x8A\x0E\xA1\x6C\xD7\xE8\x6C\xA7\xEE\x58\x41\x71\xCA\xB2\x8E\x49\x25\x94\x90\x25\x26\x05\x8D\xAF"
       "\x63\xED\x2E\x30",
       32
@@ -26,7 +26,7 @@ void SecureUtilsTests::checkHex()
 
 void SecureUtilsTests::checkArt()
 {
-  QByteArray fingerprint(
+  const QByteArray fingerprint(
       "\x28\xFD\x0A\x98\x8A\x0E\xA1\x6C\xD7\xE8\x6C\xA7\xEE\x58\x41\x71\xCA\xB2\x8E\x49\x25\x94\x90\x25\x26\x05\x8D\xAF"
       "\x63\xED\x2E\x30",
       32