diff --git a/src/lib/component/controller/CodeController.cpp b/src/lib/component/controller/CodeController.cpp
index a11d1cd7..f58ee104 100644
--- a/src/lib/component/controller/CodeController.cpp
+++ b/src/lib/component/controller/CodeController.cpp
@@ -40,7 +40,7 @@ void CodeController::handleMessage(MessageActivateAll* message)
 	}
 
 	CodeSnippetParams statsSnippet;
-	statsSnippet.title = currentProject->getProjectSettingsFilePath().withoutExtension().fileName();
+	statsSnippet.title = currentProject->getProjectSettingsFilePath().withoutExtension().wFileName();
 
 	statsSnippet.startLineNumber = 1;
 	statsSnippet.endLineNumber = 1;
@@ -660,7 +660,7 @@ std::vector<CodeSnippetParams> CodeController::getSnippetsForFile(
 				{
 					if (location->getTokenIds().size())
 					{
-						params.title = utility::encodeToUtf8(m_storageAccess->getNameHierarchyForNodeId(location->getTokenIds()[0]).getQualifiedName());
+						params.title = m_storageAccess->getNameHierarchyForNodeId(location->getTokenIds()[0]).getQualifiedName();
 						params.titleId = location->getLocationId();
 					}
 				}
@@ -669,7 +669,7 @@ std::vector<CodeSnippetParams> CodeController::getSnippetsForFile(
 
 		if (!activeSourceLocations->isWhole() && params.titleId == 0)
 		{
-			params.title = activeSourceLocations->getFilePath().str();
+			params.title = activeSourceLocations->getFilePath().wstr();
 		}
 
 		const SourceLocation* lastSourceLocation =
@@ -682,7 +682,7 @@ std::vector<CodeSnippetParams> CodeController::getSnippetsForFile(
 				{
 					if (location->getTokenIds().size())
 					{
-						params.footer = utility::encodeToUtf8(m_storageAccess->getNameHierarchyForNodeId(location->getTokenIds()[0]).getQualifiedName());
+						params.footer = m_storageAccess->getNameHierarchyForNodeId(location->getTokenIds()[0]).getQualifiedName();
 						params.footerId = location->getLocationId();
 					}
 				}
diff --git a/src/lib/component/controller/TooltipController.cpp b/src/lib/component/controller/TooltipController.cpp
index 68efd680..2c463f3e 100644
--- a/src/lib/component/controller/TooltipController.cpp
+++ b/src/lib/component/controller/TooltipController.cpp
@@ -75,7 +75,7 @@ void TooltipController::handleMessage(MessageTooltipHide* message)
 
 void TooltipController::handleMessage(MessageTooltipShow* message)
 {
-	if (message->tooltipInfo.title.size())
+	if (!message->tooltipInfo.title.empty())
 	{
 		requestTooltipShow(std::vector<Id>(), message->tooltipInfo, message->origin);
 	}
diff --git a/src/lib/component/view/helper/CodeSnippetParams.h b/src/lib/component/view/helper/CodeSnippetParams.h
index 25e4a77d..12db8e33 100644
--- a/src/lib/component/view/helper/CodeSnippetParams.h
+++ b/src/lib/component/view/helper/CodeSnippetParams.h
@@ -19,8 +19,8 @@ struct CodeSnippetParams
 	uint startLineNumber;
 	uint endLineNumber;
 
-	std::string title;
-	std::string footer;
+	std::wstring title;
+	std::wstring footer;
 	std::string code;
 
 	Id titleId;
diff --git a/src/lib/data/parser/AccessKind.cpp b/src/lib/data/parser/AccessKind.cpp
index 55031b4a..6c3e08dc 100644
--- a/src/lib/data/parser/AccessKind.cpp
+++ b/src/lib/data/parser/AccessKind.cpp
@@ -25,25 +25,25 @@ int accessKindToInt(AccessKind t)
 	return t;
 }
 
-std::string accessKindToString(AccessKind t)
+std::wstring accessKindToString(AccessKind t)
 {
 	switch (t)
 	{
 	case ACCESS_NONE:
-		return "";
+		return L"";
 	case ACCESS_PUBLIC:
-		return "public";
+		return L"public";
 	case ACCESS_PROTECTED:
-		return "protected";
+		return L"protected";
 	case ACCESS_PRIVATE:
-		return "private";
+		return L"private";
 	case ACCESS_DEFAULT:
-		return "default";
+		return L"default";
 	case ACCESS_TEMPLATE_PARAMETER:
-		return "template parameter";
+		return L"template parameter";
 	case ACCESS_TYPE_PARAMETER:
-		return "type parameter";
+		return L"type parameter";
 	}
-	return "";
+	return L"";
 }
 
diff --git a/src/lib/data/parser/AccessKind.h b/src/lib/data/parser/AccessKind.h
index 308fb5c2..8c7ac5be 100644
--- a/src/lib/data/parser/AccessKind.h
+++ b/src/lib/data/parser/AccessKind.h
@@ -16,6 +16,6 @@ enum AccessKind
 
 AccessKind intToAccessKind(int v);
 int accessKindToInt(AccessKind t);
-std::string accessKindToString(AccessKind t);
+std::wstring accessKindToString(AccessKind t);
 
 #endif // ACCESS_KIND_H
diff --git a/src/lib/data/storage/PersistentStorage.cpp b/src/lib/data/storage/PersistentStorage.cpp
index bbc8dcbc..ac82d60f 100644
--- a/src/lib/data/storage/PersistentStorage.cpp
+++ b/src/lib/data/storage/PersistentStorage.cpp
@@ -1703,7 +1703,7 @@ TooltipInfo PersistentStorage::getTooltipInfoForTokenIds(const std::vector<Id>&
 	}
 
 	const NodeType type = utility::intToType(node.type);
-	info.title = type.getReadableTypeString();
+	info.title = type.getReadableTypeWString();
 
 	DefinitionKind defKind = DEFINITION_NONE;
 	const StorageSymbol symbol = m_sqliteIndexStorage.getFirstById<StorageSymbol>(node.id);
@@ -1717,7 +1717,7 @@ TooltipInfo PersistentStorage::getTooltipInfoForTokenIds(const std::vector<Id>&
 		const StorageComponentAccess access = m_sqliteIndexStorage.getComponentAccessByNodeId(node.id);
 		if (access.nodeId != 0)
 		{
-			info.title = accessKindToString(intToAccessKind(access.type)) + " " + info.title;
+			info.title = accessKindToString(intToAccessKind(access.type)) + L" " + info.title;
 		}
 	}
 
@@ -1725,16 +1725,16 @@ TooltipInfo PersistentStorage::getTooltipInfoForTokenIds(const std::vector<Id>&
 	{
 		if (!getFileNodeComplete(node.id))
 		{
-			info.title = "incomplete " + info.title;
+			info.title = L"incomplete " + info.title;
 		}
 	}
 	else if (defKind == DEFINITION_NONE)
 	{
-		info.title = "non-indexed " + info.title;
+		info.title = L"non-indexed " + info.title;
 	}
 	else if (defKind == DEFINITION_IMPLICIT)
 	{
-		info.title = "implicit " + info.title;
+		info.title = L"implicit " + info.title;
 	}
 
 	info.count = 0;
diff --git a/src/lib/data/tooltip/TooltipInfo.h b/src/lib/data/tooltip/TooltipInfo.h
index 9c5047bd..49ab292d 100644
--- a/src/lib/data/tooltip/TooltipInfo.h
+++ b/src/lib/data/tooltip/TooltipInfo.h
@@ -21,7 +21,7 @@ struct TooltipInfo
 		return title.size() || snippets.size();
 	}
 
-	std::string title;
+	std::wstring title;
 
 	int count = -1;
 	std::string countText;
diff --git a/src/lib_gui/qt/element/QtCodeFileSingle.cpp b/src/lib_gui/qt/element/QtCodeFileSingle.cpp
index 07720e31..8f5f4f68 100644
--- a/src/lib_gui/qt/element/QtCodeFileSingle.cpp
+++ b/src/lib_gui/qt/element/QtCodeFileSingle.cpp
@@ -301,7 +301,7 @@ void QtCodeFileSingle::setFileData(const FileData& file)
 		m_currentFilePath = file.filePath;
 		m_titleBar->setMaximized();
 
-		if (file.title.size())
+		if (!file.title.empty())
 		{
 			titleButton->setProject(file.title);
 			titleButton->setIsComplete(true);
diff --git a/src/lib_gui/qt/element/QtCodeFileSingle.h b/src/lib_gui/qt/element/QtCodeFileSingle.h
index 062f2491..d2e5bd5c 100644
--- a/src/lib_gui/qt/element/QtCodeFileSingle.h
+++ b/src/lib_gui/qt/element/QtCodeFileSingle.h
@@ -61,7 +61,7 @@ private:
 		FilePath filePath;
 		TimeStamp modificationTime;
 		bool isComplete = false;
-		std::string title;
+		std::wstring title;
 
 		QtCodeArea* area = nullptr;
 	};
diff --git a/src/lib_gui/qt/element/QtCodeFileTitleButton.cpp b/src/lib_gui/qt/element/QtCodeFileTitleButton.cpp
index f8bb1dfd..bdbb699e 100644
--- a/src/lib_gui/qt/element/QtCodeFileTitleButton.cpp
+++ b/src/lib_gui/qt/element/QtCodeFileTitleButton.cpp
@@ -82,17 +82,15 @@ void QtCodeFileTitleButton::setIsComplete(bool isComplete)
 	}
 }
 
-void QtCodeFileTitleButton::setProject(const std::string& name)
+void QtCodeFileTitleButton::setProject(const std::wstring& name)
 {
 	m_filePath = FilePath();
 
-	setText(name.c_str());
+	setText(QString::fromStdWString(name));
 	setToolTip("edit project");
 
-	std::string text = ResourcePaths::getGuiPath().str() + "code_view/images/edit.png";
-
 	setIcon(utility::colorizePixmap(
-		QPixmap(text.c_str()),
+		QPixmap(QString::fromStdWString(ResourcePaths::getGuiPath().concatenate(L"code_view/images/edit.png").wstr())),
 		ColorScheme::getInstance()->getColor("code/file/title/icon").c_str()
 	));
 }
@@ -131,7 +129,7 @@ void QtCodeFileTitleButton::updateFromOther(const QtCodeFileTitleButton* other)
 	}
 	else
 	{
-		setProject(other->text().toStdString());
+		setProject(other->text().toStdWString());
 	}
 
 	setModificationTime(other->m_modificationTime);
diff --git a/src/lib_gui/qt/element/QtCodeFileTitleButton.h b/src/lib_gui/qt/element/QtCodeFileTitleButton.h
index dfd29120..7f51bbe6 100644
--- a/src/lib_gui/qt/element/QtCodeFileTitleButton.h
+++ b/src/lib_gui/qt/element/QtCodeFileTitleButton.h
@@ -18,7 +18,7 @@ public:
 	void setFilePath(const FilePath& filePath);
 	void setModificationTime(const TimeStamp modificationTime);
 	void setIsComplete(bool isComplete);
-	void setProject(const std::string& name);
+	void setProject(const std::wstring& name);
 
 	void updateTexts();
 
diff --git a/src/lib_gui/qt/element/QtCodeSnippet.cpp b/src/lib_gui/qt/element/QtCodeSnippet.cpp
index 8bc89974..09ce52ad 100644
--- a/src/lib_gui/qt/element/QtCodeSnippet.cpp
+++ b/src/lib_gui/qt/element/QtCodeSnippet.cpp
@@ -78,7 +78,7 @@ QtCodeSnippet::QtCodeSnippet(const CodeSnippetParams& params, QtCodeNavigator* n
 	layout->setAlignment(Qt::AlignTop);
 	setLayout(layout);
 
-	if (m_titleString.size() && !params.reduced)
+	if (!m_titleString.empty() && !params.reduced)
 	{
 		m_title = createScopeLine(layout);
 		if (m_titleId == 0) // title is a file path
@@ -87,7 +87,7 @@ QtCodeSnippet::QtCodeSnippet(const CodeSnippetParams& params, QtCodeNavigator* n
 		}
 		else
 		{
-			m_title->setText(m_titleString.c_str());
+			m_title->setText(QString::fromStdWString(m_titleString));
 		}
 		connect(m_title, &QPushButton::clicked, this, &QtCodeSnippet::clickedTitle);
 	}
@@ -95,7 +95,7 @@ QtCodeSnippet::QtCodeSnippet(const CodeSnippetParams& params, QtCodeNavigator* n
 	m_codeArea = new QtCodeArea(params.startLineNumber, params.code, params.locationFile, navigator, !params.reduced, this);
 	layout->addWidget(m_codeArea);
 
-	if (m_footerString.size())
+	if (!m_footerString.empty())
 	{
 		m_footer = createScopeLine(layout);
 		if (m_footerId == 0) // footer is a file path
@@ -104,7 +104,7 @@ QtCodeSnippet::QtCodeSnippet(const CodeSnippetParams& params, QtCodeNavigator* n
 		}
 		else
 		{
-			m_footer->setText(m_footerString.c_str());
+			m_footer->setText(QString::fromStdWString(m_footerString));
 		}
 		connect(m_footer, &QPushButton::clicked, this, &QtCodeSnippet::clickedFooter);
 	}
diff --git a/src/lib_gui/qt/element/QtCodeSnippet.h b/src/lib_gui/qt/element/QtCodeSnippet.h
index 8f7aa520..bf71e188 100644
--- a/src/lib_gui/qt/element/QtCodeSnippet.h
+++ b/src/lib_gui/qt/element/QtCodeSnippet.h
@@ -64,10 +64,10 @@ private:
 	QtCodeFile* m_file;
 
 	Id m_titleId;
-	std::string m_titleString;
+	std::wstring m_titleString;
 
 	Id m_footerId;
-	std::string m_footerString;
+	std::wstring m_footerString;
 
 	std::vector<QPushButton*> m_dots;
 
diff --git a/src/lib_gui/qt/element/QtTooltip.cpp b/src/lib_gui/qt/element/QtTooltip.cpp
index 6949d1e3..486234ba 100644
--- a/src/lib_gui/qt/element/QtTooltip.cpp
+++ b/src/lib_gui/qt/element/QtTooltip.cpp
@@ -34,7 +34,7 @@ void QtTooltip::setTooltipInfo(TooltipInfo info)
 {
 	if (info.title.size())
 	{
-		addTitle(info.title.c_str(), info.count, info.countText.c_str());
+		addTitle(QString::fromStdWString(info.title), info.count, info.countText.c_str());
 	}
 
 	for (TooltipSnippet& snippet : info.snippets)
diff --git a/src/lib_gui/qt/view/graphElements/QtGraphEdge.cpp b/src/lib_gui/qt/view/graphElements/QtGraphEdge.cpp
index 4ddc5011..599ed5d4 100644
--- a/src/lib_gui/qt/view/graphElements/QtGraphEdge.cpp
+++ b/src/lib_gui/qt/view/graphElements/QtGraphEdge.cpp
@@ -302,11 +302,11 @@ void QtGraphEdge::focusIn()
 			Edge::EdgeType type = (getData() ? getData()->getType() : Edge::EDGE_AGGREGATION);
 
 			TooltipInfo info;
-			info.title = utility::encodeToUtf8(Edge::getReadableTypeString(type));
+			info.title = Edge::getReadableTypeString(type);
 
 			if (type == Edge::EDGE_AGGREGATION && m_direction == TokenComponentAggregation::DIRECTION_NONE)
 			{
-				info.title = "bidirectional " + info.title;
+				info.title = L"bidirectional " + info.title;
 			}
 
 			if (type == Edge::EDGE_AGGREGATION)