diff --git a/src/libs/languageserverprotocol/lsptypes.h b/src/libs/languageserverprotocol/lsptypes.h
index 239d40f6622..4adc35aa105 100644
--- a/src/libs/languageserverprotocol/lsptypes.h
+++ b/src/libs/languageserverprotocol/lsptypes.h
@@ -556,7 +556,6 @@ enum class SymbolKind {
     TypeParameter = 26,
     LastSymbolKind = TypeParameter,
 };
-using SymbolStringifier = std::function<QString(SymbolKind, const QString &, const QString &)>;
 
 namespace CompletionItemKind {
 enum Kind {
diff --git a/src/plugins/clangcodemodel/clangdclient.cpp b/src/plugins/clangcodemodel/clangdclient.cpp
index 2c3f722617b..fb097b5aac2 100644
--- a/src/plugins/clangcodemodel/clangdclient.cpp
+++ b/src/plugins/clangcodemodel/clangdclient.cpp
@@ -38,6 +38,7 @@
 #include <languageclient/languageclienthoverhandler.h>
 #include <languageclient/languageclientinterface.h>
 #include <languageclient/languageclientmanager.h>
+#include <languageclient/languageclientoutline.h>
 #include <languageclient/languageclientsymbolsupport.h>
 #include <languageclient/languageclientutils.h>
 #include <languageclient/progressmanager.h>
@@ -128,6 +129,20 @@ public:
         : Request("textDocument/symbolInfo", params) {}
 };
 
+class ClangdOutlineItem : public LanguageClientOutlineItem
+{
+    using LanguageClientOutlineItem::LanguageClientOutlineItem;
+private:
+    QVariant data(int column, int role) const override
+    {
+        if (role == Qt::DisplayRole) {
+            return ClangdClient::displayNameFromDocumentSymbol(
+                static_cast<SymbolKind>(type()), name(), detail());
+        }
+        return LanguageClientOutlineItem::data(column, role);
+    }
+};
+
 void setupClangdConfigFile()
 {
     const Utils::FilePath targetConfigFile = CppEditor::ClangdSettings::clangdUserConfigFilePath();
@@ -427,7 +442,6 @@ ClangdClient::ClangdClient(Project *project, const Utils::FilePath &jsonDbDir, c
     });
     setCurrentProject(project);
     setDocumentChangeUpdateThreshold(d->settings.documentUpdateThreshold);
-    setSymbolStringifier(displayNameFromDocumentSymbol);
     setSemanticTokensHandler([this](TextDocument *doc, const QList<ExpandedSemanticToken> &tokens,
                                     int version, bool force) {
         d->handleSemanticTokens(doc, tokens, version, force);
@@ -661,6 +675,12 @@ DiagnosticManager *ClangdClient::createDiagnosticManager()
     return diagnosticManager;
 }
 
+LanguageClientOutlineItem *ClangdClient::createOutlineItem(
+    const LanguageServerProtocol::DocumentSymbol &symbol)
+{
+    return new ClangdOutlineItem(this, symbol);
+}
+
 bool ClangdClient::referencesShadowFile(const TextEditor::TextDocument *doc,
                                         const Utils::FilePath &candidate)
 {
diff --git a/src/plugins/clangcodemodel/clangdclient.h b/src/plugins/clangcodemodel/clangdclient.h
index 772920b2776..3c9e603b843 100644
--- a/src/plugins/clangcodemodel/clangdclient.h
+++ b/src/plugins/clangcodemodel/clangdclient.h
@@ -137,6 +137,8 @@ private:
     const CustomInspectorTabs createCustomInspectorTabs() override;
     TextEditor::RefactoringChangesData *createRefactoringChangesBackend() const override;
     LanguageClient::DiagnosticManager *createDiagnosticManager() override;
+    LanguageClient::LanguageClientOutlineItem *createOutlineItem(
+        const LanguageServerProtocol::DocumentSymbol &symbol) override;
     bool referencesShadowFile(const TextEditor::TextDocument *doc,
                               const Utils::FilePath &candidate) override;
     bool fileBelongsToProject(const Utils::FilePath &filePath) const override;
diff --git a/src/plugins/languageclient/client.cpp b/src/plugins/languageclient/client.cpp
index 0efaacd3500..23c086c8b2e 100644
--- a/src/plugins/languageclient/client.cpp
+++ b/src/plugins/languageclient/client.cpp
@@ -11,6 +11,7 @@
 #include "languageclienthoverhandler.h"
 #include "languageclientinterface.h"
 #include "languageclientmanager.h"
+#include "languageclientoutline.h"
 #include "languageclientquickfix.h"
 #include "languageclientsymbolsupport.h"
 #include "languageclientutils.h"
@@ -325,7 +326,6 @@ public:
     SemanticTokenSupport m_tokenSupport;
     QString m_serverName;
     QString m_serverVersion;
-    LanguageServerProtocol::SymbolStringifier m_symbolStringifier;
     Client::LogTarget m_logTarget = Client::LogTarget::Ui;
     bool m_locatorsEnabled = true;
     bool m_autoRequestCodeActions = true;
@@ -1484,16 +1484,6 @@ void Client::setSemanticTokensHandler(const SemanticTokensHandler &handler)
     d->m_tokenSupport.setTokensHandler(handler);
 }
 
-void Client::setSymbolStringifier(const LanguageServerProtocol::SymbolStringifier &stringifier)
-{
-    d->m_symbolStringifier = stringifier;
-}
-
-SymbolStringifier Client::symbolStringifier() const
-{
-    return d->m_symbolStringifier;
-}
-
 void Client::setSnippetsGroup(const QString &group)
 {
     if (const auto provider = qobject_cast<LanguageClientCompletionAssistProvider *>(
@@ -2089,6 +2079,12 @@ bool Client::fileBelongsToProject(const Utils::FilePath &filePath) const
     return project() && project()->isKnownFile(filePath);
 }
 
+LanguageClientOutlineItem *Client::createOutlineItem(
+    const LanguageServerProtocol::DocumentSymbol &symbol)
+{
+    return new LanguageClientOutlineItem(this, symbol);
+}
+
 FilePath toHostPath(const FilePath serverDeviceTemplate, const FilePath localClientPath)
 {
     const FilePath onDevice = serverDeviceTemplate.withNewPath(localClientPath.path());
diff --git a/src/plugins/languageclient/client.h b/src/plugins/languageclient/client.h
index 525739d7a63..51f72cc7d4a 100644
--- a/src/plugins/languageclient/client.h
+++ b/src/plugins/languageclient/client.h
@@ -31,7 +31,6 @@ class Unregistration;
 } // namespace LanguageServerProtocol
 
 namespace LanguageClient {
-
 class BaseClientInterface;
 class ClientPrivate;
 class DiagnosticManager;
@@ -40,6 +39,7 @@ class DynamicCapabilities;
 class HoverHandler;
 class InterfaceController;
 class LanguageClientCompletionAssistProvider;
+class LanguageClientOutlineItem;
 class LanguageClientQuickFixProvider;
 class LanguageFilter;
 class ProgressManager;
@@ -160,13 +160,13 @@ public:
                        const LanguageServerProtocol::Diagnostic &diag) const;
     bool hasDiagnostics(const TextEditor::TextDocument *document) const;
     void setSemanticTokensHandler(const SemanticTokensHandler &handler);
-    void setSymbolStringifier(const LanguageServerProtocol::SymbolStringifier &stringifier);
-    LanguageServerProtocol::SymbolStringifier symbolStringifier() const;
     void setSnippetsGroup(const QString &group);
     void setCompletionAssistProvider(LanguageClientCompletionAssistProvider *provider);
     void setQuickFixAssistProvider(LanguageClientQuickFixProvider *provider);
     virtual bool supportsDocumentSymbols(const TextEditor::TextDocument *doc) const;
     virtual bool fileBelongsToProject(const Utils::FilePath &filePath) const;
+    virtual LanguageClientOutlineItem *createOutlineItem(
+        const LanguageServerProtocol::DocumentSymbol &symbol);
 
     LanguageServerProtocol::DocumentUri::PathMapper hostPathMapper() const;
     Utils::FilePath serverUriToHostPath(const LanguageServerProtocol::DocumentUri &uri) const;
diff --git a/src/plugins/languageclient/languageclientoutline.cpp b/src/plugins/languageclient/languageclientoutline.cpp
index 9ab057de62f..6d0596780ea 100644
--- a/src/plugins/languageclient/languageclientoutline.cpp
+++ b/src/plugins/languageclient/languageclientoutline.cpp
@@ -41,67 +41,10 @@ const QList<DocumentSymbol> sortedSymbols(const QList<DocumentSymbol> &symbols)
     });
 }
 
-class LanguageClientOutlineItem : public Utils::TypedTreeItem<LanguageClientOutlineItem>
-{
-public:
-    LanguageClientOutlineItem() = default;
-    LanguageClientOutlineItem(const SymbolInformation &info)
-        : m_name(info.name())
-        , m_range(info.location().range())
-        , m_type(info.kind())
-    { }
-
-    LanguageClientOutlineItem(const DocumentSymbol &info, const SymbolStringifier &stringifier)
-        : m_name(info.name())
-        , m_detail(info.detail().value_or(QString()))
-        , m_range(info.range())
-        , m_symbolStringifier(stringifier)
-        , m_type(info.kind())
-    {
-        const QList<LanguageServerProtocol::DocumentSymbol> children = sortedSymbols(
-                    info.children().value_or(QList<DocumentSymbol>()));
-        for (const DocumentSymbol &child : children)
-            appendChild(new LanguageClientOutlineItem(child, stringifier));
-    }
-
-    // TreeItem interface
-    QVariant data(int column, int role) const override
-    {
-        switch (role) {
-        case Qt::DecorationRole:
-            return symbolIcon(m_type);
-        case Qt::DisplayRole:
-            return m_symbolStringifier
-                    ? m_symbolStringifier(static_cast<SymbolKind>(m_type), m_name, m_detail)
-                    : m_name;
-        default:
-            return Utils::TreeItem::data(column, role);
-        }
-    }
-
-    Qt::ItemFlags flags(int column) const override
-    {
-        Q_UNUSED(column)
-        return Utils::TypedTreeItem<LanguageClientOutlineItem>::flags(column)
-               | Qt::ItemIsDragEnabled;
-    }
-
-    Range range() const { return m_range; }
-    Position pos() const { return m_range.start(); }
-    bool contains(const Position &pos) const { return m_range.contains(pos); }
-
-private:
-    QString m_name;
-    QString m_detail;
-    Range m_range;
-    SymbolStringifier m_symbolStringifier;
-    int m_type = -1;
-};
-
 class LanguageClientOutlineModel : public Utils::TreeModel<LanguageClientOutlineItem>
 {
 public:
-    using Utils::TreeModel<LanguageClientOutlineItem>::TreeModel;
+    LanguageClientOutlineModel(Client *client) : m_client(client)  {}
     void setFilePath(const Utils::FilePath &filePath) { m_filePath = filePath; }
 
     void setInfo(const QList<SymbolInformation> &info)
@@ -114,12 +57,7 @@ public:
     {
         clear();
         for (const DocumentSymbol &symbol : sortedSymbols(info))
-            rootItem()->appendChild(new LanguageClientOutlineItem(symbol, m_symbolStringifier));
-    }
-
-    void setSymbolStringifier(const SymbolStringifier &stringifier)
-    {
-        m_symbolStringifier = stringifier;
+            rootItem()->appendChild(m_client->createOutlineItem(symbol));
     }
 
     Qt::DropActions supportedDragActions() const override
@@ -145,7 +83,7 @@ public:
     }
 
 private:
-    SymbolStringifier m_symbolStringifier;
+    Client * const m_client;
     Utils::FilePath m_filePath;
 };
 
@@ -194,6 +132,7 @@ LanguageClientOutlineWidget::LanguageClientOutlineWidget(Client *client,
                                                          TextEditor::BaseTextEditor *editor)
     : m_client(client)
     , m_editor(editor)
+    , m_model(client)
     , m_view(this)
     , m_uri(m_client->hostPathToServerUri(editor->textDocument()->filePath()))
 {
@@ -213,7 +152,6 @@ LanguageClientOutlineWidget::LanguageClientOutlineWidget(Client *client,
     layout->setSpacing(0);
     layout->addWidget(Core::ItemViewFind::createSearchableWrapper(&m_view));
     setLayout(layout);
-    m_model.setSymbolStringifier(m_client->symbolStringifier());
     m_model.setFilePath(editor->textDocument()->filePath());
     m_proxyModel.setSourceModel(&m_model);
     m_view.setModel(&m_proxyModel);
@@ -372,11 +310,11 @@ Utils::TreeViewComboBox *LanguageClientOutlineWidgetFactory::createComboBox(
 }
 
 OutlineComboBox::OutlineComboBox(Client *client, TextEditor::BaseTextEditor *editor)
-    : m_client(client)
+    : m_model(client)
+    , m_client(client)
     , m_editorWidget(editor->editorWidget())
     , m_uri(m_client->hostPathToServerUri(editor->document()->filePath()))
 {
-    m_model.setSymbolStringifier(client->symbolStringifier());
     m_proxyModel.setSourceModel(&m_model);
     const bool sorted = LanguageClientSettings::outlineComboBoxIsSorted();
     m_proxyModel.sort(sorted ? 0 : -1);
@@ -455,4 +393,39 @@ void OutlineComboBox::setSorted(bool sorted)
     m_proxyModel.sort(sorted ? 0 : -1);
 }
 
+LanguageClientOutlineItem::LanguageClientOutlineItem(const SymbolInformation &info)
+    : m_name(info.name())
+    , m_range(info.location().range())
+    , m_type(info.kind())
+{ }
+
+LanguageClientOutlineItem::LanguageClientOutlineItem(Client *client, const DocumentSymbol &info)
+    : m_client(client)
+    , m_name(info.name())
+    , m_detail(info.detail().value_or(QString()))
+    , m_range(info.range())
+    , m_type(info.kind())
+{
+    const QList<LanguageServerProtocol::DocumentSymbol> children = sortedSymbols(
+        info.children().value_or(QList<DocumentSymbol>()));
+    for (const DocumentSymbol &child : children)
+        appendChild(m_client->createOutlineItem(child));
+}
+
+QVariant LanguageClientOutlineItem::data(int column, int role) const
+{
+    switch (role) {
+    case Qt::DecorationRole:
+        return symbolIcon(m_type);
+    case Qt::DisplayRole:
+        return m_name;
+    default:
+        return Utils::TreeItem::data(column, role);
+    }
+}
+Qt::ItemFlags LanguageClientOutlineItem::flags(int column) const
+{
+    Q_UNUSED(column)
+    return Utils::TypedTreeItem<LanguageClientOutlineItem>::flags(column) | Qt::ItemIsDragEnabled;
+}
 } // namespace LanguageClient
diff --git a/src/plugins/languageclient/languageclientoutline.h b/src/plugins/languageclient/languageclientoutline.h
index e333563dc2d..1dc73dd4c9a 100644
--- a/src/plugins/languageclient/languageclientoutline.h
+++ b/src/plugins/languageclient/languageclientoutline.h
@@ -3,7 +3,11 @@
 
 #pragma once
 
+#include "languageclient_global.h"
+
+#include <languageserverprotocol/lsptypes.h>
 #include <texteditor/ioutlinewidget.h>
+#include <utils/treemodel.h>
 
 namespace TextEditor {
 class TextDocument;
@@ -12,6 +16,38 @@ class BaseTextEditor;
 namespace Utils { class TreeViewComboBox; }
 
 namespace LanguageClient {
+class Client;
+
+class LANGUAGECLIENT_EXPORT LanguageClientOutlineItem
+    : public Utils::TypedTreeItem<LanguageClientOutlineItem>
+{
+public:
+    LanguageClientOutlineItem() = default;
+    LanguageClientOutlineItem(const LanguageServerProtocol::SymbolInformation &info);
+    LanguageClientOutlineItem(Client *client, const LanguageServerProtocol::DocumentSymbol &info);
+
+    LanguageServerProtocol::Range range() const { return m_range; }
+    LanguageServerProtocol::Position pos() const { return m_range.start(); }
+    bool contains(const LanguageServerProtocol::Position &pos) const {
+        return m_range.contains(pos);
+    }
+
+protected:
+    // TreeItem interface
+    QVariant data(int column, int role) const override;
+    Qt::ItemFlags flags(int column) const override;
+
+    QString name() const { return m_name; }
+    QString detail() const { return m_detail; }
+    int type() const { return m_type; }
+
+private:
+    Client * const m_client = nullptr;
+    QString m_name;
+    QString m_detail;
+    LanguageServerProtocol::Range m_range;
+    int m_type = -1;
+};
 
 class Client;